SIAE - SDH Manual - General

ALSAccess Link SeriesSDH radio family

User manual

MN.00164.E - 001Volume 1/1

The information contained in this handbook is subject to change without notice.

Property of Siae Microelettronica S.p.A. All rights reserved according to the law and according to the inter-national regulations. No part of this document may be reproduced or transmitted in any form or by anymeans, electronic or mechanical, without written permission from Siae Microelettronica S.p.A.

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ALS - MN.00164.E - 001 1

ALS

Section 1.USER GUIDE 9

1 DECLARATION OF CONFORMITY ............................................................................... 9

2 PURPOSE AND STRUCTURE OF THE MANUAL............................................................12

2.1 PURPOSE OF THE MANUAL.................................................................................12

2.2 AUDIENCE BASIC KNOWLEDGE ..........................................................................12

2.3 STRUCTURE OF THE MANUAL .............................................................................12

Section 2.INSTALLATION 15

3 LIST OF ABBREVIATIONS.........................................................................................15

4 EQUIPMENT INTRODUCTION ...................................................................................17

4.1 SYSTEM OVERVIEW ..........................................................................................17

4.2 APPLICATION ...................................................................................................17

4.3 SYSTEM ARCHITECTURE....................................................................................17

4.3.1 IDU.......................................................................................................18

4.3.1.1 IDU SDH modular (IDU ALS)......................................................18

4.3.1.2 IDU SDH compact (IDU ALS-C) ..................................................19

4.3.2 ODU......................................................................................................19

4.3.3 Frequency reuse systems (with XPIC) ........................................................19

4.4 MANAGEMENT SYSTEM......................................................................................19

4.4.1 Hardware platform ..................................................................................20

4.4.2 Management ports ..................................................................................20

5 INSTALLATION AND PROCEDURES FOR ENSURING THE ELECTROMAGNETIC COMPATIBILITY.......................................................................................................27

5.1 ALS SYSTEM ....................................................................................................27

5.2 MECHANICAL INSTALLATION..............................................................................27

5.2.1 IDU installation.......................................................................................27

5.2.1.1 Connections for 1+0 frequency reuse systems..............................27

5.2.1.2 Connections for 1+1 frequency reuse systems..............................27

5.2.2 ODU installation......................................................................................28

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5.2.2.1 ODU installation for AS version...................................................28

5.2.2.2 ODU installation for ALS version .................................................28

5.3 ELECTRICAL WIRING.........................................................................................28

5.4 GROUNDING CONNECTION ................................................................................30

6 IDU SDH USER CONNECTIONS .................................................................................31

6.1 IDU ALS CONNECTORS......................................................................................31

6.2 IDU ALS-C CONNECTORS...................................................................................34

7 INSTALLATION ONTO THE POLE OF THE ODU AS WITH SEPARATED ANTENNA ........38

7.1 INSTALLATION KIT ...........................................................................................38

7.2 REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED) .............................................38

7.3 INSTALLATION PROCEDURE...............................................................................39

7.4 GROUNDING ....................................................................................................41

8 INSTALLATION ONTO THE WALL OF THE ODU AS WITH SEPARATED ANTENNA .......52




8.4 GROUNDING ....................................................................................................54

9 INSTALLATION ONTO THE POLE OF THE ODU AS WITH INTEGRATED ANTENNA ......64

9.1 FOREWORD .....................................................................................................64




9.4.1 Installation onto the pole of the support system and the antenna ..................65

9.4.2 Installation of ODU..................................................................................65

9.4.3 ODU installation......................................................................................66

9.5 ANTENNA AIMING.............................................................................................67

9.6 COMPATIBILITY................................................................................................67

9.7 GROUNDING ....................................................................................................67

10 INSTALLATION ONTO THE POLE OF THE ODU AS WITH INTEGRATED ANTENNA (KIT V32307, V32308, V32309)...............................................................................84

10.1 FOREWORD .....................................................................................................84




10.5 1+0 MOUNTING PROCEDURES ...........................................................................86

10.5.1 Setting antenna polarization.....................................................................86

10.5.2 Installation of the centring ring on the antenna...........................................86

10.5.3 Installation of 1+0 ODU support ...............................................................86

10.5.4 Installation onto the pole of the assembled structure ...................................86

10.5.5 Installation of ODU (on 1+0 support).........................................................86

10.5.6 Antenna aiming ......................................................................................87

10.5.7 ODU grounding.......................................................................................87

10.6 1+1 MOUNTING PROCEDURES ...........................................................................87

10.6.1 Hybrid/circulator installation.....................................................................87

10.6.2 Installation of ODUs ................................................................................88

11 INSTALLATION ON POLE OF ODU ALS WITH SEPARATED ANTENNA.........................98

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11.1 TOOLS REQUIRED FOR INSTALLATION ................................................................98


12 INSTALLATION ON POLE OF THE ODU ALS WITH INTEGRATED ANTENNA..............110

12.1 FOREWORD ...................................................................................................110

12.2 NEEDED TOOLS..............................................................................................110

12.3 INSTALLATION PROCEDURE.............................................................................110

12.4 ANTENNA ALIGNMENT.....................................................................................111

12.5 INSTALLATION NOTE ON FREQUENCY REUSE SYSTEMS .......................................127

13 INSTALLATION NOTE ON FREQUENCY REUSE SYSTEMS .........................................129

13.1 Frequency reuse.............................................................................................129

13.2 Characteristics ...............................................................................................129

14 ODU AS SUBSTITUTION FOR 1+1 FREQUENCY DIVERSITY SYSTEM .......................132

14.1 1+1 FREQUENCY DIVERSITY SYSTEM: SUBSTITUTION OF ODU ............................132

Section 3.LINE-UP AND MAINTENANCE 135

15 PROGRAMMING AND SUPERVISION.......................................................................135

15.1 GENERAL.......................................................................................................135

16 LINE-UP OF THE RADIO HOP..................................................................................136

16.1 LINE-UP OF THE RADIO HOP ............................................................................136

16.1.1 Antenna alignment and received field measurement ..................................136

16.1.2 Network element configuration ...............................................................136

16.1.3 Radio checks ........................................................................................137

16.2 LASER FUNCTIONALITY TEST ...........................................................................138

16.2.1 Switch-on procedure .............................................................................138

16.2.2 Automatic laser shut-down check ............................................................138

16.3 LINE-UP OF RADIO HOP FOR FREQUENCY REUSE SYSTEMS WITH XPIC (IDU ALS)...138

16.3.1 Additional line-up operations for XPIC......................................................138

16.4 NOTES ON MANUAL OPERATIONS ON ALS WITH XPIC (IDU ALS) ..........................139

16.4.1 Management of automatic manual operations ...........................................139

16.4.2 Automatically activated manual operations ...............................................140

17 LINE UP OF ETHERNET LIM ....................................................................................144

17.1 GENERAL.......................................................................................................144

17.2 ETHERNET FUNCTIONALITY..............................................................................144

17.3 SWITCH CONFIGURATION ...............................................................................144

17.3.1 Tributary enabling.................................................................................144

17.3.2 SWITCH GENERAL PARAMETERS .............................................................145

17.3.3 LAN1...................................................................................................145

17.3.4 LAN2 / LAN3 ........................................................................................146

17.3.5 PORT-A / PORT-B..................................................................................147

17.3.6 SPANNING TREE ...................................................................................148

17.4 CONFIGURATION EXAMPLES ............................................................................149

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17.4.1 Local LAN1 - Remote LAN1.....................................................................149

17.4.2 Local LAN1 - Remote LAN1, Local LAN2 - Remote LAN2, Segregated............151

17.5 LIM ETHERNET: GENERAL NOTES ON MANUAL OPERATIONS ................................152

17.5.1 1+0 LINK.............................................................................................153

17.5.2 1+1 HOT STAND-BY (1 ANTENNA / SPACE DIVERSITY) ..............................154

17.5.3 1+1 Frequency Div. (1 antenna / space diversity) .....................................156

18 PERIODICAL CHECKS .............................................................................................157

18.1 GENERAL.......................................................................................................157

18.2 CHECKS TO BE CARRIED OUT ..........................................................................157

19 TROUBLESHOOTING...............................................................................................158

19.1 GENERAL.......................................................................................................158

19.2 TROUBLESHOOTING PROCEDURE .....................................................................158

19.2.1 Loop facilities .......................................................................................158

19.2.2 Alarm messages processing....................................................................159

19.3 FAULT MANAGEMENT PROCEDURE FOR FREQUENCY REUSE SYSTEMS WITH XPIC ...160

19.3.1 Manual operations activated by FMP ........................................................160

20 EQUIPMENT CONFIGURATION UPLOAD/SAVE/DOWNLOAD. PARAMETER MODIFICATION AND CREATION OF VIRTUAL CONFIGURATIONS ...........................161

20.1 SCOPE ..........................................................................................................161

20.2 PROCEDURE...................................................................................................161

20.2.1 General equipment configuration.............................................................161

20.2.2 Addresses and routing table ...................................................................162

20.2.3 Remote Element Table...........................................................................163

21 BACK UP FULL EQUIPMENT CONFIGURATION WITHOUT POSSIBILITY OF MODIFYING THE PARAMETERS ..............................................................................164

21.1 SCOPE ..........................................................................................................164

21.2 CONFIGURATION UPLOAD ...............................................................................164

21.3 CONFIGURATION DOWNLOAD ..........................................................................164

22 ALS - FIRMWARE UPDATE ......................................................................................166

22.1 INTRODUCTION..............................................................................................166

22.2 SYSTEM VERSION OF FIRMWARE......................................................................166

22.3 PRELIMINARY CHECKS ....................................................................................167

22.4 FIRMWARE UPGRADE ......................................................................................167

22.4.1 N90485 - Equipment controller application download .................................167

22.4.2 N90487 - Radio application download (first branch) ...................................169

22.4.3 N90489 (ALS6U-ALS18-ALS23)/N90543 (ALS13) - Radio FPGA download (first branch)........................................................................................170

22.4.4 N90486 or N90530 - Modem download (first branch) .................................170

22.4.5 Radio branch switch (1+1 systems only) ..................................................171

22.4.6 N90487 - Radio application download - second branch (1+1 system only) ....172

22.4.7 N90489 (ALS6U-ALS18-ALS23)/N90543 (ALS13) - Radio FPGA download - second branch (1+1 system only) ...........................................................172

22.4.8 N90486 or N90530 - Modem download - second branch (1+1 system only) ..172

22.4.9 N90486 or N90508 - Baseband download.................................................173

22.5 FINAL CHECK .................................................................................................173

22.5.1 Downgrade procedure ...........................................................................174

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Section 4.CHARACTERISTICS AND DESCRIPTIONS SPECIFICATION 175

23 SYSTEM CHARACTERISTICS ...................................................................................175

23.1 GENERAL.......................................................................................................175

23.2 SYSTEM CHARACTERISTICS .............................................................................176

24 CHARACTERISTICS OF THE IDU .............................................................................180

24.1 GENERAL.......................................................................................................180

24.2 STM-1 ELECTRICAL INTERFACE ........................................................................180

24.3 STM-1 OPTICAL INTERFACE .............................................................................180

24.4 2 Mbit/s WAYSIDE INTERFACE..........................................................................181

24.5 2 Mbit/s INTERFACE (E1), LIM 2xSTM-1/LIM 4xSTM-1 .........................................181

24.6 ETHERNET INTERFACE AND SWITCH CHARACTERISTICS .....................................182

24.7 64 kbit/s CONTRA-DIRECTIONAL INTERFACE V.11 ..............................................184

24.8 ALARM INTERFACE..........................................................................................184

24.9 NETWORK MANAGEMENT INTERFACE ................................................................185

24.10 MODULATOR/DEMODULATOR ...........................................................................185

24.11 CABLE INTERFACE ..........................................................................................186

24.12 AVAILABLE LOOPS ..........................................................................................186

24.13 BATTERY INTERFACE.......................................................................................186

24.14 POWER SUPPLY CURRENT................................................................................187

25 CHARACTERISTICS OF ODU....................................................................................188

25.1 GENERAL.......................................................................................................188

26 DESCRIPTION OF THE SDH IDU .............................................................................189

26.1 GENERAL.......................................................................................................189

26.2 DESCRIPTION OF IDU SDH MODULAR (IDU ALS) ................................................189

26.2.1 LIM ETHERNET description .....................................................................189

26.2.2 Description of the LIM nxSTM1 ...............................................................193

26.2.2.1 STM-1 interface .....................................................................193

26.2.2.2 2xSTM-1 interface ..................................................................194

26.2.2.3 4xSTM-1 interface ..................................................................195

26.2.2.4 Up to 4xSTM-1 synchronisation ................................................195

26.2.3 Description of the RIM ...........................................................................195

26.2.3.1 Modem .................................................................................195

26.2.3.2 Power supply and cable interface..............................................196

26.2.4 Description of RIM with XPIC ..................................................................197

26.2.5 Description of the controller ...................................................................197

26.2.5.1 Interface ports.......................................................................198

26.2.5.2 Equipment firmware ...............................................................198

26.2.6 IDU telemetry ......................................................................................199

26.2.7 IDU loops ............................................................................................199

26.2.7.1 Line loop ...............................................................................199

26.2.7.2 Baseband loop .......................................................................199

26.2.7.3 IDU loop ...............................................................................199

26.2.8 Front panel of SDH IDU modular (IDU ALS) ..............................................200

26.3 DESCRIPTION OF IDU SDH COMPACT (IDU ALS-C)..............................................200

26.3.1 General ...............................................................................................200

26.3.1.1 STM-1 interface .....................................................................200

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26.3.1.2 2xSTM-1 interface ..................................................................201

26.3.1.3 Modem .................................................................................202

26.3.1.4 Power supply and cable interface..............................................203

26.3.2 Controller ............................................................................................203

26.3.2.1 Interface ports.......................................................................203

26.3.2.2 Equipment firmware ...............................................................203

26.3.3 IDU telemetry ......................................................................................204

26.3.4 IDU loops ............................................................................................204

26.3.4.1 Line loop ...............................................................................205

26.3.4.2 Baseband loop .......................................................................205

26.3.4.3 IDU loop ...............................................................................205

26.3.5 Front panel of SDH IDU compact (IDU ALS-C)...........................................205

27 ODU AS DESCRIPTION ...........................................................................................225

27.1 GENERAL.......................................................................................................225

27.2 TRANSMIT SECTION........................................................................................225

27.3 RECEIVE SECTION ..........................................................................................225

27.4 CABLE INTERFACE ..........................................................................................226

27.5 ATPC OPERATION ...........................................................................................226

27.6 1+1 HOT STAND-BY AND FREQUENCY DIVERSITY Tx SYSTEM .............................226

27.7 POWER SUPPLY ..............................................................................................227

27.8 FREQUENCY REUSE.........................................................................................227

28 ODU ALS DESCRIPTION .........................................................................................231

28.1 GENERAL.......................................................................................................231

28.2 TRANSMITTER SECTION ..................................................................................231

28.3 RECEIVER SECTION ........................................................................................232

28.4 CABLE INTERFACE ..........................................................................................232

28.4.1 Power supply........................................................................................232

28.5 BRANCHING UNIT...........................................................................................233

28.6 ATPC.............................................................................................................233

28.7 RF LOOP (OPTION) .........................................................................................234

28.8 FREQUENCY REUSE.........................................................................................234

Section 5.COMPOSITION 241

29 IDU COMPOSITION ................................................................................................241

29.1 GENERAL.......................................................................................................241

29.2 COMPOSITION OF IDU SDH MODULAR ..............................................................241

29.3 COMPOSITION OF IDU SDH COMPACT...............................................................242

30 ODU COMPOSITION ...............................................................................................243

30.1 GENERAL.......................................................................................................243

30.2 ODU AS COMPOSITION ...................................................................................243

30.3 ALS ODU COMPOSITION..................................................................................244

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Section 6.SAFETY RULES AND EQUIPMENT DISPOSAL 247

31 FIRST AID FOR ELECTRICALSHOCK AND SAFETY RULES ........................................247

31.1 FIRST AID FOR ELECTRICAL SHOCK..................................................................247

31.1.1 Artificial respiration ...............................................................................247

31.1.2 Treatment of burns ...............................................................................247

31.2 SAFETY RULES ...............................................................................................249

31.3 CORRECT DISPOSAL OF THIS PRODUCT (WasteElectrical & Electronic Equipment)...250

31.4 INTERNAL BATTERY ........................................................................................250

32 LIST OF FIGURES ...................................................................................................251

33 LIST OF TABLES .....................................................................................................257

34 ASSISTANCE SERVICE............................................................................................259

34.1 RQ.00961 MODULE .........................................................................................259

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Section 1.USER GUIDE

1 DECLARATION OF CONFORMITY

SIAE Microelettronica S.p.AVia Buonarroti, 21 - Cologno (MI) - Italy

DECLARESTHAT THE PRODUCTS

Digital Radio Relay Systems model ALS

comply with the essential requirements of article 3 of the R&TTE Directive (1999/05/EC)

and therefore are marked:

The following standards have been applied:

EN 60950:2000"Safety of information technology equipment"

EN 301 489-4 v. 1.3.1 (2002-8)"Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMag-netic Compatibility (EMC) standard for radio equipment and services; Part 4: Specific conditions for fixedradio links and ancillary equipment and services"

ETSI EN 302 217-2-2 V1.1.3 (2004-12)"Fixed Radio Systems; Characteristics and requirements for point-to-point equipment and antennas; Part2-2: Harmonized EN covering essential requirements of Article 3.2 of R&TTE Directive for digital systemsoperating in frequency bands where frequency co-ordination is applied."

The equipment makes use of non-harmonized frequency bands.Following the requirements of the R&TTE Directive (article 12) and the relevant decision ofthe EC, in term of classification of Radio Equipment and Telecommunications Terminal Equip-ment and associated identifiers, the ALS shall carry the 'class 2' identifier:

Cologno Monzese, 16/05/2005 On behalf of SIAE Microelettronica S.p.A.Chairman and Executive OfficerAlberto Mascetti

10 ALS - MN.00164.E - 001

ALS - MN.00164.E - 001 11

12 ALS - MN.00164.E - 001

2 PURPOSE AND STRUCTURE OF THE MANUAL

2.1 PURPOSE OF THE MANUAL

The purpose of this manual consists in providing the user with information which permit to operate andmaintain the ALS radio family.

Warning: This manual does not include information relevant to the SCT/LCT management program win-dows and relevant application. They will be provided by the program itself as help-on line.

2.2 AUDIENCE BASIC KNOWLEDGE

The following knowledge and skills are required to operate the equipment:

• a basic understanding of SDH transmission

• installation and maintenance experience on digital radio system

• knowledge of IP/OSI networking.

2.3 STRUCTURE OF THE MANUAL

The manual is subdivided in sections, each one developing a subject pointed out as title of the section.

Each section consists of a set of chapters, which describe more in detail the main subject.

Section 1 - User Guide

It expounds the purpose and the structure of the manual.

Section 2 - Installation

The mechanical installation procedures are herein set down as well as the user electrical connections. Thecontent of the tool kit (if supplied) is also listed.

Section 3 - Line-up and maintenance

Line-up procedures are described as well as checks to be carried out for the equipment correct operation.The list of the instruments to be used and their characteristics are also set down.The routine maintenanceactions are described as well as fault location procedures in order to identify the faulty unit and to re-es-tablish the operation after its replacement with a spare one.

ALS - MN.00164.E - 001 13

Section 4 - Characteristics and description

It traces the broad line of equipment operation and lists the main technical characteristics. List of abbre-viation meaning is also supplied.

Section 5 - Composition

Position, part numbers of the components the equipment consist of, are shown in this section.

Section 6 - Safety rules and equipment disposal

It provides the information about the main safety rules and the equipment disposal (electrical and elec-tronical wastes).

Section 7 - Lists and assistance

The section contains the lists of the figures and the tables of the manual and the information relevant tothe assistance service.

14 ALS - MN.00164.E - 001

ALS - MN.00164.E - 001 15

Section 2.INSTALLATION

3 LIST OF ABBREVIATIONS

- ATPC Automatic Transmit Power Control

- BB Baseband

- BBER Background Block Error Ratio

- BCM Block Coded Modulation

- BER Bit Error Ratio

- CC Co-channel

- C/I Carrier to Interference (ratio)

- DCC Data Communication Channel

- DRRS Digital Radio Relay Systems

- ECC Embedded Control Channel

- EMC Electromagnetic Compatibility

- ERC European Radiocommunications Committee

- HDLC High-level Data Link Control

- IDU Indoor Unit

- IF Intermediate Frequency

- LED Light Emitted Diode

- LAPS Link Access Procedure SDH

- LAN Local Area Network

- LIM Line Interface Module

- LO Local Oscillator

- LOS Loss Of Signal

- LOF Loss Of Frame

- LCT Local Craft Terminal

- MIB Management Information Base

16 ALS - MN.00164.E - 001

- MSOH Multiplex Section Overhead

- MST Multiplex Section Termination

- MTBF Mean Time Between Failure

- NE Network Element

- NMI Network Management Interface

- ODU Outdoor Unit

- PDH Plesiochronous Digital Hierarchy

- PPI Plesiochronous Physical Interface

- PPP Point to Point Protocol

- RFC Radio Frequency Channel

- RFCOH Radio Frame Complementary OverHead

- RIM Radio Interface Module

- RPS Radio Protection Switching

- RST Regenerator Section Termination

- RTPC Remote Transmission Power Control

- RSL Received Signal Level

- RSOH Regenerator Section OverHead

- RSPI Radio Synchronous Physical Interface

- RST Regenerator Section Termination

- RTPC Remote Transmission Power Control

- SDH Synchronous Digital Hierarchy

- SETS SDH Equipment Timing Source

- SETG SDH Equipment Timing Generator

- SNMP Simple Network Management Protocol

- SOH Section OverHead

- SPI Synchronous Physical Interface

- STM-1 Synchronous Transport Module Level 1(155.52 Mbit/s)

- TCP/IP Transmission Control Protocol/Internet Protocol

- TMN Telecommunications Management Network

- TU Tributary Unit

- VC Virtual Container

- XPIC XPIC Interference Canceller

- XIF XPIC Improvement Factor

- VLAN Virtual LAN

ALS - MN.00164.E - 001 17

4 EQUIPMENT INTRODUCTION

4.1 SYSTEM OVERVIEW

Access Link Series (ALS) radio family, is radio link family designed and developed by SIAE MicroelettronicaS.p.A. for high capacity transmission.

The equipment offers scalable data rates from STM-1 up to 4xSTM-1 making use of 32 QAM or 128QAMsoftware programmable modulation.

Crosspolar Interference Canceller (XPIC) circuit allows the frequency reuse of the radio channel thus per-mitting to double the transmission capacity.

Cost-effective, high reliability, fast installation, commonalities and fully programmability are the most out-standing performances that permits the ALS radio family to cope with success the very demanding tele-communication market.

4.2 APPLICATION

The equipment finds application in the following fields:

• urban and regional network

• media diversity protection

• Gigabit ethernet extension

• SDH ring

• high capacity interconnection among GSM/UMTS cellular infrastructures

• spur route from backbone network.

4.3 SYSTEM ARCHITECTURE

The ALS equipment is split mount type. It consists of two separate units called IDU and ODU available indifferent versions:

• IDU is 19” wired mechanical structure for indoor rack mounting. The unit height depends on thedifferent assembly versions.It contains circuitry for in/out tributary interfacing and management of the whole equipment.

• ODU is a light, waterproof metallic body for pole or wall mounting. The internal circuitry makes upthe RF head interfacing the antenna. The two units are interconnected via a single coaxial cable.

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4.3.1 IDU

The IDU unit is available in two versions:

• IDU SDH modular, for STM-1 and Ethernet traffic, called IDU ALS

• IDU SDH compact, for STM-1 traffic, called IDU ALS-C.

4.3.1.1 IDU SDH modular (IDU ALS)

The IDU SDH is available in the following capacities:

• 1+0, 1 unit high, up to 2xSTM-1 capacity


• 1+0, 1 unit high, up to 2xSTM-1 capacity with XPIC






• 2x(1+0), 1 unit high, up to 2xSTM-1 each carrier

• 1+0, 1 unit high, Ethernet traffic, 290 Mbit/s capacity



• 1+1, 2 unit high, Ethernet traffic, 580 Mbit/s capacity each carrier

• 2x(1+0), 1 unit high, Ethernet traffic, 290 Mbit/s capacity each carrier.

STM-1 interfaces can be electrical or optical. With plug-in modules the electrical or optical interface can beselected by the user for each STM-1 interface.

The ALS IDU consists of LIM, CONTROLLER, RIM modules inserted into a wired shelf. The LIM interfacecontains tributaries and processes the STM-n frames in RST operating mode.

Fig.1, Fig.2, Fig.3 and Fig.4 show equipment layouts, pointing out capacity and configuration with ODU ASas example (these configurations can support ODU ALS too).

Ethernet transmission - LIM Ethernet + services interfaces are the following:

• 1 Gigabit optical port (plug-in)

• 2 10/100BaseT ports

• 8xE1.

Ethernet and E1 traffic, depending on requested capacity, is encapsulated (proprietary protocol) in variousVC3. In this way the link can work in MST and in point to point connection only. The aggregate Ethernettraffic and service channels is sent to modulator of each RIM. In Rx side the opposite occurs.

In 1+1 configuration the LIM duplicates the aggregate frames at Tx side and performs the changeover atRx side.

The RIM is supplied with the following:

• all the circuitry for the 32/128QAM programmable modemodulation including FEC corrector. In caseof cochannel operation the XPIC circuit option is used

• the power supply unit that supplies power to the IDU circuits and sends the battery voltage to theODU. Protection against cable short/open is also supplied.

• the cable interface for the bidirectional communication between IDU and ODU via interconnectingcable.

ALS - MN.00164.E - 001 19

The Controller:

• contains the equipment software that permits to control and to manage all the equipment function-ality through a main controller and associated peripherals distributed within IDU and ODU

• interfaces the management system through Ethernet, RS232 and USB ports

• receives external alarms and sends to relay contacts along the internal alarms generated by theequipment.

4.3.1.2 IDU SDH compact (IDU ALS-C)

IDU ALS-C compact is available for 1xSTM-1/2xSTM-1 capacity and 1+0 configuration. The unit descriptionis included in the homonymous paragraph.

4.3.2 ODU

The ODU unit contains circuits that permits to interface from one side one IDU and the antenna from theother side.

The QAM modulated carrier is shifted to RF frequency bands through a double conversion. Similarly it oc-curs at the receive side to send the IF converted carrier to the demodulator within the IDU.

It is possible to join two ODU units on one single supporting plate (pole or wall). In the support systemthere is the hybrid for 1+1 hot stand-by configuration or the circulator for 1+1 frequency diversity config-uration.

ODU unit is available for ODU AS and ODU ALS versions.

4.3.3 Frequency reuse systems (with XPIC)

The frequency reuse systems permit to double the link capacity. It is possible to transmit one carrier onvertical polarization and one on horizontal polarization.A cross polar interference canceller (XPIC) is necessary to reduce the effects of cross polar interference.The idea is that, with XPIC, the receiver re-constructs the wanted signal and deletes the interference. The interference is unknown and it is obtained in function of received signal on other polarization.The XPIC circuits are housed into indoor unit.

4.4 MANAGEMENT SYSTEM

The ALS family radio equipment can be managed by the following:

• SCT/LCT for the management of subnetworks. The two programs are running on the PC under win-dows platform.

• NMS5UX for the management of large networks. The program is running on workstation under Unixplatform and Linux platform.

Both tools use SNMP as management protocol along with IP or IPoverOSI as communication protocol. Themain management functionalities implemented are:

• fault management (alarms, events, date, time, type, address, severity, etc...)

• equipment configuration and test: configuration parameters, loopback, manual forcing of 1+1switching, mapping of relay alarms and user input

20 ALS - MN.00164.E - 001

• software management: software release management and software downloading

• performance management: all performance according with ITU-T G.828 are supported, BER meas-urements, Rx level measurements etc...

• security management: management of security levels for operator access.

4.4.1 Hardware platform

The hardware/software platform used by SCT/LCT is based on personal computer having at least followingcharacteristics:

• microprocessor Pentium 133 MHz or more

• 64 Mbyte RAM

• windows compatible graphic monitor

• NIC interface

• HD with 50 Mbyte of free space

• Windows 95/Windows NT/Windows 98/Windows 2000/Windows XP.

4.4.2 Management ports

The SCT/LCT program is connected to the equipment via the following communication ports:

• Ethernet LAN, 10BaseT, 10Base2, AUI

• Asynchronous RS232 serial line

• USB port

• Radio via DCC (Data Communication Channel embedded into the SOH of STM-n frame).

Fig.1 – 1xSTM-1 and 2xSTM-1 unprotected version

2xSTM-1

1U IDU ALS

AS

ALS - MN.00164.E - 001 21

Fig.2 – 1xSTM-1 and 2xSTM-1 protected version

Fig.3 – 2xSTM-1, 4xSTM-1 unprotected version with RIM XPIC

2xSTM-1

1U IDU ALS

Branching

AS

1U IDU ALS

4xSTM- 1

ODU AS

22 ALS - MN.00164.E - 001

Fig.4 – 4xSTM1 optical interface protected version and RIM XPIC

Branching Branching

IDU ALS

ALS - MN.00164.E - 001 23

Fig.5 – 1+0, up to 1xSTM-1 equipment block diagram, with ODU AS

RSO

Hdro

p

RSO

Hin

sert

SO

H

inse

rt

SO

H

inse

rt

LIM

Enco

der

MO

D

Dec

oder

DEM

Inte

rf.

cavo

Ges

t.

OD

U

PSU

RIM

1

Alim

. ID

U

Bat

t.

RT1

Inte

rf.

cavo

Tx Rx

+

-

Contr.

OD

U

Alim

. O

DU

Contr

olle

r princ.C

ON

TRO

LLER

Contr.

IDU

Ges

t.

OD

U

Vis

ual

. al

larm

i

SCT/

LCT

OD

U A

S

1x2

Mbit/s

1x2

Mbit/s

1xS

TM

-1

1xS

TM

-1

IDU

64 k

bit/s

64 k

bit/s

24 ALS - MN.00164.E - 001

Fig.6 – 1+0, up to 2xSTM-1 equipment block diagram, with ODU AS

Ela

b.

SD

H

Ela

b.

SD

H

2xS

TM

-1

MU

X

2xS

TM

-1

DEM

UX

LIM

Enco

der

MO

D

Dec

oder

DEM

Inte

rf.

cavo

.

Ges

t.

OD

U

PSU

RIM

1

Alim

. ID

U

Bat

t.

RT1

Inte

rf.

cavo

Tx Rx

+

-

Contr.

OD

U

Alim

. O

DU

Contr

olle

r princ.C

ON

TRO

LLER

Contr.

IDU

Ges

t.

OD

U

Vis

ual

. al

larm

i

SCT/

LCT

OD

U

2x2

Mbit/s

2x2

Mbit/s

2xS

TM

-1

2xS

TM

-1

IDU

64 k

bit/s

64 k

bit/s

ALS - MN.00164.E - 001 25

Fig.7 – 1+1, up to 2xSTM-1 equipment block diagram, hot stand-by or frequency diversity versions with ODU AS

Ela

b.

SD

H

Ela

b.

SD

H

2xS

TM

-1

MU

X

2xS

TM

-1

DEM

UX

LIM

Coder

MO

D

Dec

oder

DEM

Inte

rf.

cavo

OD

U

man

ag

PSU

RIM

1

Alim

. ID

U

Bat

t.

RT1

Inte

rf.

cavo

Tx Rx

+

-

Contr.

OD

U

Alim

. O

DU

Contr

olle

r princ.C

ON

TRO

LLER

Contr.

IDU

Ges

t.

OD

U

Vis

ual

. al

larm

i

SCT/

LCT

OD

U

2x2

Mbit/s

Coder

MO

D

Dec

oder

DEM

Inte

rf.

cavo

Ges

t.

OD

U

PSU

RIM

2

Alim

. ID

U

Bat

t.

RT2

Inte

rf.

cavo

Tx Rx

+-

Contr.

OD

U

Alim

. O

DU

IDU

2x2

Mbit/s

2xS

TM

-1

2xS

TM

-164 k

bit/s

64 k

bit/s

Freq

. D

iver

sity

Hot

Sta

nd-b

y

26 ALS - MN.00164.E - 001

Fig.8 – 1+0, 4xSTM-1 equipment block diagram, with ODU AS

Ela

b.

SD

H

Ela

b.

SD

H

2xS

TM

-1

MU

X

2xS

TM

-1

DEM

UX

LIM

Coder

MO

D

Dec

oder

DEM

Inte

rf.

cavo

Ges

t.

OD

U

PSU

RIM

1

Alim

. ID

U

Bat

t.

Inte

rf.

cavo

Tx Rx

+-

Contr.

OD

U

Alim

. O

DU

Contr

olle

r princ.C

ON

TRO

LLER

Contr.

IDU

Ges

t.

OD

U

Vis

ual

. al

larm

i

SCT/

LCT

OD

U1

2xS

TM

-1

Coder

MO

D

Dec

oder

DEM

Inte

rf.

cavo

Ges

t.

OD

U

PSU

RIM

2

Alim

. ID

UBat

t.

Inte

rf.

cavo

Tx Rx

+-

Contr.

OD

U

Alim

. O

DU

IDU

OD

U2

Ela

b.

SD

H

Ela

b.

SD

H

2xS

TM

-1

MU

X

2xS

TM

-1

DEM

UX

2xS

TM

-1

XPI

C

4xS

TM

-1

XPI

C

ALS - MN.00164.E - 001 27

5 INSTALLATION AND PROCEDURES FOR ENSUR-ING THE ELECTROMAGNETIC COMPATIBILITY

5.1 ALS SYSTEM

The equipment consists of IDU and ODU(s) units and is mechanically made up of a wired 19" subrack (IDU)and a weather proof metallic container (ODU).

After unpacking, mechanical installation takes place followed by electrical connections as described in thefollowing paragraphs.

IDU and ODU installation procedures are different depending on their versions, only is these differencesentail different procedures.

5.2 MECHANICAL INSTALLATION

5.2.1 IDU installation

On their sides the subracks making up the several IDU versions are provided with two holes for the M6screws fastening the subracks to a rack or to a mechanical 19" structure. The front of the IDU mechanicalstructure is provided with two holes at the sides. This permits to fasten the subrack to a 19” rack by meansof 4 M6 screws.

Other close equipment have to be spaced by 1/2 unit (22 mm).

5.2.1.1 Connections for 1+0 frequency reuse systems

The frequency reuse systems require interconnections between the RIMs.

They make use of cables with SMA-SMA male connectors.

Fig.9 shows the interconnections for 1+0 version.

5.2.1.2 Connections for 1+1 frequency reuse systems

The frequency reuse systems require interconnections between the RIMs.

They make use of cables with SMA-SMA male connectors.

Fig.10 shows interconnections for 1+1 version.

28 ALS - MN.00164.E - 001

5.2.2 ODU installation

The description of installation procedures are different depending on ODU versions, As or ALS.

5.2.2.1 ODU installation for AS version

Refer to following procedures:

• Installation onto the pole of the ODU AS with separated antenna (see chapter 7)

• Installation onto the wall of the ODU AS with separated antenna (see chapter 8)

• Installation onto the pole of the ODU AS with integrated antenna (see chapter 9)

• Installation onto the pole of the ODU AS with integrated antenna (KIT V32307, V32308, V32309)(see chapter 10)

5.2.2.2 ODU installation for ALS version

Refer to following procedures:

• Installation onto the pole of the ODU ALS with separated antenna (see chapter 11)

• Installation onto the pole of the ODU AS with integrated antenna (see chapter 12)

Fig.9 – Interconnections for frequency reuse - 1+0 version

Fig.10 – Interconnections for frequency reuse - 1+1 version

5.3 ELECTRICAL WIRING

The electrical wiring must be done using appropriate cables thus assuring the equipment responds to theelectromagnetic compatibility standards.

The cable terminates to flying connectors which have to be connected to the corresponding connectors onthe equipment front.

Position and pin-out of the equipment connectors are available in this section.

Tab.1 shows the characteristics of the cables to be used and the flying connector types.

STM1-4STM1-3STM1-2STM1-1

FAIL

V11W.S.2W.S.1

IDU ODU

REMTEST

LCT RS232 USER IN/OUT

Q3

R

XX

+

-RIM

RIM

1

2

2

1

RIM

RIM-

+

X X

XX

+

-RIM

RIM

1

2

2

1

RIM

RIM-

+

X X

XX

+

-RIM

RIM

1

2

2

1

RIM

RIM-

+

X X

IDU ODU

REMTEST


Q3

R

V11W.S.2W.S.1


ALS - MN.00164.E - 001 29

Tab.11 - Cable and connector characteristics

Interconnecting pointsType of connector terminating

the cableType of cable/conductor

BatteryPolarised SUB-D 3W3 female con-

nectorSection of each wire ≥ 2.5 sqmm 1

Tributary signals

1.0/2.3 male connector75 ohm coaxial cable ST214 typeor equivalent

SUB-D 25 pin male connector

–120 Ohm balanced four symmet-ric pairs with shield

–75 Ohm unbalanced four coaxial cable pairs with the shield connect

to ground pin (see “6 IDU SDH USER CONNECTIONS” document

for pin details)

1.0/2.3 male connector- 75 ohm coaxial cable with double

shield

User inputs/alarms outputFemale type D connector with 9

pins and shielded holder

9 conductor cable with double brass sheath type interconductor

DB 28.25 or equivalent

RS232Female type D connector with 9 pins and shielded holder/CAT5

shielded (ALS-C only)

9 conductor cable with double brass sheath type interconductor

DB 28.10 or equivalent

GND Faston male type Section area ≥ 6 sq. mm.

LCT USB Female USB type B Cable USB 1.1

1 For power cable length longer than 20 m. a section of 4 mm is required.

30 ALS - MN.00164.E - 001

5.4 GROUNDING CONNECTION

Fig.11 and annexed legend show how to perform the grounding connections.

Legend

(1) IDU grounding point, fast type. The cross section area of the cable used must be ≥ 4 sq. mm. Thefaston is available on the IDU both sides.

(2) ODU grounding bolt. The cross section area of the cable used must be ≥ 16 sq. mm.

(3) IDU-ODU interconnection coax cable terminated with N-type male (ODU side) and SMA male (IDUside).

(4) Grounding kit type Cabel Metal or similar to connect the shield of interconnection cable.

(5) Matching cable (tail) terminated with N male and N female connectors.

(6) Battery grounding point of IDU to be connected to earth by means of a cable with a section area2.5 sq. mm. Length ≤ 10 m.

(7) Grounding cords connected to a real earth internal of station. The cross section area of the cablemust be ≥ 16 sq. mm.

Fig.11 - Grounding connection

IDUunit

ODUunit

2

6(+) (-)

4

Localground

Rackground

Indoor

Stationground

7

1 5

3 4 3

ALS - MN.00164.E - 001 31

6 IDU SDH USER CONNECTIONS

6.1 IDU ALS CONNECTORS

The user connections are performed through connectors on RIM/LIM/CONTROLLER modules. Fig.12 showsthe connectors position.

Warning: The connector position are the same for all the IDU version.

The connectors are the following:

LIM module

• STM-1 in/out: electrical interface with connectors 1.0/2.3 75 Ohm female type; plug-in with elec-trical interface 1.0/2.3 connector module; plug-in with optical interface LC connector module

• WS1/WS2: connectors RJ45 female for 2 Mbit/s way side: refer to Tab.2 for connector pin-out.

• V11: connector RJ45 female for 64 kbit/s contradirectional. Refer to Tab.3 fro connector pin-out.

LIM Ethernet module

• 100/1000BaseX: plug-in module with optical interface, LC connector

• 10/100BaseT: RJ45 connector (see pin out in Tab.6)

• Tributaries 1/8: SCSI 50 pin connector (see Fig.14, Tab.8, 75 Ohm or Tab.9 120 Ohm)

• V11: RJ45 connector for 64 kbit/s contra-directional (see pin out in Tab.3).

CONTROLLER module

• LCT: connector USB type B male. For pin-out refer to USB standards

• USER IN/OUT: connector SUB-D, 9 pins male type. Refer to Tab.4 for connector pin-out.

• RS232: connector SUB-D, 9 pins male type. Refer to Tab.5 for connector pin-out.

• Q3: connector BNC or connector RJ45. Refer to Tab.6 for connector RJ45.

RIM module

• Connector SMA/50 Ohm female for connection to ODU

• Connector SUB-D, 3 pin male for connection to battery

• Connector SMA/50 Ohm female for connection to other RIM for XPIC correction (only for XPIC equip-ment).

32 ALS - MN.00164.E - 001

Fig.12 – Typical connector position (IDU ALS)

Tab.2 – WS1/WS2 connector pin-out for 2 Mbit/s

Tab.3 – V11 connector pin-out for 64 kbit/s channel - V.11 interface

Pin Description

1 Tx–C

2 Tx–F

3 GND

4 ––

5 Rx–C

6 Rx–F

7 GND

8 ––

Pin Description

1 D–V11–Tx

2 D+V11–Tx

3 C–V11–Tx

4 C+V11–Tx

5 D–V11–Rx

6 D+V11–Rx

7 C–V11–Rx

8 C+V11–Rx

W.S.1 W.S.2 V11

FAIL

STM1-1 STM1-2

R

Q3

USER IN/OUTRS232LCT

TESTREM

ODUIDU

2

1

RIM

RIM-

+

R

Q3

USER IN/OUTRS232LCT

TESTREM

ODUIDU

2

1

RIM

RIM-

+

V113 2 1LINKACT

DPX100-1000 BaseX10-100 BaseT

FAIL

Trib 1-8

LIM 2xSTM1

LIM Ethernet

ALS - MN.00164.E - 001 33

Tab.4 – User in/out connector pin-out for external alarm input and alarm transfer to outside

Tab.5 – RS232 connector pin-out for connection to/from supervision system (modular IDU)

Tab.6 – RJ45 connector pin-out for 10BaseT Ethernet connection

Pin Description

1 Realy 1 common

2 NA/NC relay 1 contact

3 Realy 2 common

4 NA/NC relay 2 contact

5 User input 04

6 User input 03

7 User input 02

8 User input 01

9 GND

Pin Description

1 Not to be connected

2 Rx D (IN)

3 Tx D (OUT)

4 Not to be connected

5 GND

6/7/8/9 ––

Pin Description

1 Tx+

2 Tx–

3 Rx+

4 ––

5 ––

6 Rx–

7 ––

8 ––

34 ALS - MN.00164.E - 001

6.2 IDU ALS-C CONNECTORS

The user connections are performed through connectors on the unit front. Fig.13 shows the connectorsposition.

The connectors are the following:

• STM-1 in/out: electrical interface with connectors 1.0/2.3 75 Ohm female type; plug-in with elec-trical interface 1.0/2.3 connector module; plug-in with optical interface LC connector module

• WS1/WS2: connectors RJ45 female for 2 Mbit/s way side: refer to Tab.2 for connector pin-out.

• V11: connector RJ45 female for 64 kbit/s contradirectional. Refer to Tab.3 for connector pin-out.

• LCT: connector USB type B male. For pin-out refer to USB standards

• USER IN/OUT: connector SUB-D, 9 pins male type. Refer to Tab.4 for connector pin-out.

• RS232: connector RJ45 type. Refer to Tab.7 for connector pin-out.

• Q3: double connector RJ45. Refer to Tab.6 for connector RJ45.

• Connector SMA/50 Ohm female for connection to ODU

• Connector SUB-D, 3 pin male for connection to battery

Tab.7 - Pin out of IDU compact RS232 connector

Fig.13 - Connectors position (IDU ALS-C)

Pin Description

1 RTS

2 TxD

3 DTR

4 DSR

5 Gnd

6 RxD

7 CTS

8 n.c.

LCT

+ -

IDUON

ODUTEST

USER IN/OUT

RS232V11

Q3/1 Q3/2

1

2

21

2Mb/s WAY SIDE

STM1-2STM1-1

ALS - MN.00164.E - 001 35

Tab.8 - Tributary IN/OUT - 75 Ohm

Fig.14 - Pin-out Tributary IN/OUT 50 SCSI

Pin 75 Ohm

48 Ground A

23 Tributary 1/9/17/25/33/41/49 input

50 Ground A

25 Tributary 1/9/17/25/33/41/49 output

47 Ground A

22 Tributary 2/10/18/26/34/42/50 input

45 Ground A


42 Ground A

17 Tributary 3/11/19/27/35/43/51 input

43 Ground A


40 Ground A

15 Tributary 4/12/20/28/36/44/52 input

39 Ground A


36 Ground B

11 Tributary 5/13/21/29/37/45/53 input

37 Ground B


34 Ground B

9 Tributary 6/14/22/30/38/46 input

33 Ground B

8 Tributary 6/14/22/30/38/46 output

29 Ground B


31 Ground B


28 Ground B


26 Ground B


. . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . .

125

2650

36 ALS - MN.00164.E - 001

Tab.9 - Tributary IN/OUT - 120 Ohm

Pin 120 Ohm

49 Tributary 1/9/17/25/33/41/49 input

23 Tributary 1/9/17/25/33/41/49 input

44 Ground A



44 Ground A

21 Tributary 2/10/18/26/34/42/50 input

22 Tributary 2/10/18/26/34/42/50 input

44 Ground A



44 Ground A

16 Tributary 3/11/19/27/35/43/51 input

17 Tributary 3/11/19/27/35/43/51 input

44 Ground A



44 Ground A

41 Tributary 4/12/20/28/36/44/52 input

15 Tributary 4/12/20/28/36/44/52 input

44 Ground A



44 Ground A

10 Tributary 5/13/21/29/37/45/53 input

11 Tributary 5/13/21/29/37/45/53 input

32 Ground B



32 Ground B



32 Ground B



32 Ground B

ALS - MN.00164.E - 001 37



32 Ground B



32 Ground B



32 Ground B



32 Ground B

38 ALS - MN.00164.E - 001

7 INSTALLATION ONTO THE POLE OF THE ODU AS WITH SEPARATED ANTENNA

7.1 INSTALLATION KIT

Following installation kits are supplied with the equipment:

• 1+0 system

- antisliding strip (see Fig.15)

- supporting plate plus 60–114 mm pole fixing bracket and relevant nuts and bolts (see Fig.16)

- adapting tools and relevant bolts and nuts for 219 mm pole

- antenna side flange, variable as function of RF frequency (see Fig.18)

- support with ODU fast locking mechanism (see Fig.16)

- connection to the antenna with flexible wave guide and possible use of a rigid elbow (optional)(see Fig.18)

- kit for ground connection making part of ODU

• 1+1 system

- antisliding strip (see Fig.15)

- supporting plate plus pole fixing bracket and relevant nuts and bolts (see Fig.16)

- adapting tools and relevant bolts and nuts for 219 mm pole

- hybrid/circulator with ODU fast locking mechanism (see Fig.20), (hybrid for 1+1 hot stand-byconfiguration, circulator for 1+1 frequency diversity configuration)

- flexible waveguide trunk for connection to antenna (optional) (see Fig.18)

- kit for ground connection making part of the two ODUs.

Warning: in order to avoid damages to flexible waveguides, don’t fold or twist them more than valuesspecified as limit in installation instructions of the waveguide supplier.

7.2 REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED)

• N.2 13mm torque wrench

• N.1 15 mm torque wrench


• N.1 3 mm Allen wrench

ALS - MN.00164.E - 001 39

7.3 INSTALLATION PROCEDURE

Installation procedure proceeds according to the following steps:

• 1+0 system: installation onto the pole of the supporting plate 2

• 1+0 system: installation onto the pole of the supporting plate by Band-it

• 1+1 system: installation onto the pole of the supporting plate 2

• Installation of the ODU (common to both 1+0 and 1+1 system)

• ODU grounding

1+0 system – Installation onto the pole of the supporting plate

Fig.15 – Mount antislide strip around the pole. The position of the plastic blocks depends on the positionof the supporting plate (see next step)

Fig.16 – Adhere the supporting plate to the antisliding strip plastic blocks and then secure it to the polethrough the fixing bracket for 60–114 mm pole (see Fig.16). Bolts and nuts are available on the supportingplate. Tightening torque must be 32 Nm.

Warning: As shown in Fig.17 an adapting kit must be used for the 219 mm pole. It consists of an additionalplate to enlarge the standard supporting plate dimension and relevant U–bolt for 219 mm pole fixing.

Fig.18 – Fix the flexible waveguide to the antenna side flange. Four fixing screws are available the dimen-sions of which depend on the waveguide type. Tighten progressively and alternatively the four screws withthe following torque:

Tab.10 - Torques for tightening screws

Fig.18 – Fix the antenna side flange to the support with ODU fast locking mechanism. The flange can bemounted horizontally (as shown in Fig.18) or vertically as function of convenience.

Fig.19 – Fix the support with ODU fast locking mechanism to the supporting plate making use of availablebolts and nuts. Fig.19 shows the possible positions. Tightening torque must be 18 Nm.

1+0 system - Installation onto the pole of the supporting plate by Band-it

In case of installation of an ODU 1+0 with separated antenna, the pole fixing system Band-it can be used:through the holes (see Fig.22) on the base of the ODU support two metallic strips are placed tighteningthe pole. Two clips close the strips.

The characteristics of the strip are:

• thickness = 0,76 mm

• width = 19 mm

• material = steel AISI 201/304

Clip characteristics are:

• material = steel AISI 201/304,

2 In case of 219 mm pole, an adapting kit is supplied for the purpose.

Frequencies Screw Tool Torque

from 18 to 38 GHz Allen screw M3 Allen key 2.5 mm 1 Nm

up to 15 GHz Allen screw M4 Allen key 3 mm 2 Nm

40 ALS - MN.00164.E - 001

1+1 versions – Installation onto the pole of the supporting plate

Fig.15 – Mount antislide strip around the pole. The position of the plastic blocks depends on the positionof the supporting plate (see next step)

Fig.16 – Position the supporting plate to the antisliding strip plastic blocks and then secure it to the polethrough the fixing bracket for 60–114 mm pole. Bolts and nuts are available on the supporting plate kit.Tightening torque must be 32 Nm.

Fig.20 – Secure the hybrid/circulator with ODU fast locking mechanism to the supporting plate using boltand nuts available on the support plate. Tightening torque must be 18 Nm.Remove the plastic cover from the hybrid flange sides.

Warning: Do not remove the foil from the hybrid flange sides.



Warning: It is advisable to shape the waveguide flexible trunk, connecting ODU flange with antenna flangeas shown in Fig.24. This avoids possible condensate to be channelled towards the ODU flange.

Installation of the ODU

1 Bring the ODU with the two hands and position the ODU handle at the bottom side.

2 Remove the plastic cover from the ODU flange side. Warning: Do not remove the foil from the flange. Apply silicon grease e.g. type RHODOSIL PATE4 to the O–ring of Fig.23.

3 Position the ODU body close to the support with ODU fast locking mechanism and align the corre-spondent flanges:

- 1+0, align ODU side flange (see Fig.23) to antenna side flange (ODU position depends on thepolarization) see Fig.18

- 1+1 hot stand-by, align ODU side flange (see Fig.23) to hybrid side flange (see Fig.20)

- 1+1 frequency diversity, align ODU side flange (see Fig.23) to circulator side flange (see Fig.20)

Note: Hybrid and circulator differ for waveguide orientation. Circulator is shown in Fig.21.

4 After flange alignment, turn the ODU body approx. 30° anti–clockwise and then insert it into thesupport and search for alignment between reference tooth on the support (see Fig.18 – 1+0 versionor Fig.20 – 1+1 version) and ODU body reference tooth (see detail Fig.23)

5 When alignment is achieved, turn the ODU body clockwise until “clack” is heard and the ODU rota-tion stops.

6 Secure ODU body on the support by tightening bolts (1) (see Fig.18 – 1+0 version or Fig.20 – 1+1version). Tightening torque must be 6 Nm.

Final assembly of 1+1 hot stand-by version is shown in Fig.24.

Final assembly of 1+1 frequency diversity version is shown in Fig.25.

A parasol mounting is optionally possible.




ALS - MN.00164.E - 001 41

7.4 GROUNDING

The ODU must be connected to ground making reference to details of Fig.26.

Fig.15 - Antisliding strip

Antisliding stripPlastic blocks

42 ALS - MN.00164.E - 001

Fig.16 - 60–114 mm pole supporting plate fixing

Supporting plate

Use 15 mm wrench (32Nm torque)

Use 17 mm wrench (32Nm torque)

ALS - MN.00164.E - 001 43

Fig.17 - Adapting kit for 219 mm pole

44 ALS - MN.00164.E - 001

*: The flexible waveguides must not be bent more than their limit bending radius (see technical charac-teristics attached to the waveguide itself)

Fig.18 - Possible mounting position

Antenna side flange

Support with ODU fast locking mechanism

Reference tooth

Position of antenna side flange

Reference tooth

1

1

13 mm wrench 6 Nm torque

ALS - MN.00164.E - 001 45

Fig.19 - Possible positions of the support with ODU fast locking mechanism

Adapting kit for 219 mm pole

13 mm key (Torque = 18)

Support plate

Support with ODUfast lockingmechanism

A

B C

46 ALS - MN.00164.E - 001

*: The flexible waveguides must not be bent more than their limit bending radius (see technical charac-teristics attached to the waveguide itself)

Fig.20 - Installation onto the pole of the supporting plate

Use 13 mm wrench (18 Nm torque)

Reference toothReference tooth

Hybrid with ODU fast locking mechanism

1

1

RT1 RT2

Optional vawe guide

Flexiblewaveguide *

Use 13 mm wrench(6 Nm torque)

ALS - MN.00164.E - 001 47

Fig.21 - Circulator for 1+1 frequency diversity systems

Polarization disk

48 ALS - MN.00164.E - 001

Fig.22 - Band-it pole fixing

Fig.23 - ODU reference tooth

"N"

"BNC"

Ground bolt

O-ring

Tooth

ALS - MN.00164.E - 001 49

Fig.24 - Final ODU assembly of 1+1 hot stand-by version

50 ALS - MN.00164.E - 001

Fig.25 - Final assembly of 1+1 frequency diversity system

ALS - MN.00164.E - 001 51

1 Bolt

2 Grounding collar

Fig.26 - ODU grounding

1

2

52 ALS - MN.00164.E - 001

8 INSTALLATION ONTO THE WALL OF THE ODU AS WITH SEPARATED ANTENNA


Following installation kits are supplied with the equipment depending on different versions:

• 1+0 system

- wall supporting plate with additional contact surface extension plates (see Fig.27)

- antenna side flange, variable as function of RF frequency (see Fig.28)

- support with ODU fast locking mechanism (see Fig.28)


- kit for ground connection making part of ODU

• 1+1 system

- supporting plate with additional contact surface extension tools (see Fig.27)

- hybrid/circulator with ODU fast locking mechanism (see Fig.30), (hybrid for 1+1 hot stand-byconfiguration, circulator for 1+1 frequency diversity configuration)


- kit for ground connection making part of the two ODUs.


• N.2 13mm torque wrench



• N.1 3 mm allen wrench.


Installation procedure proceeds according to the following steps:

• 1+0 system: installation onto the wall of the supporting plate

• 1+1 system: installation onto the wall of the supporting plate

• installation of the ODU (common to both 1+0 and 1+1 system)

• ODU grounding.

ALS - MN.00164.E - 001 53

1+0 system – Installation onto the wall of the supporting plate

Fig.27 – Fix on the supporting plate the two supplied extension plates to increase the wall contact surface.

Fig.27 – Secure the supporting plate on the wall using the more suitable screws.



Fig.28 – Fix the antenna side flange to the support with ODU fast locking mechanism. The flange can bemounted horizontally (as shown in Fig.28) or vertically as function of convenience.

Fig.29 – Fix the support with ODU fast locking mechanism to the supporting plate making use of availablebolts and nuts. Fig.29 shows three possible positions. Tightening torque must be 18 Nm.

1+1 system – Installation onto the wall of the supporting plate

Fig.27 – Fix on the supporting plate the two supplied extension plates to increase the wall contact surface.

Fig.27 – Secure the supporting plate on the wall using the more suitable screws.

Fig.30 – Secure the hybrid with ODU fast locking mechanism to the supporting plate using bolt and nutsavailable on the support plate. Tightening torque must be 18 Nm.Remove the plastic cover from the hybrid flange sides.

Warning: Do not remove the foil from the hybrid flange sides.



Warning: It is advisable to shape the waveguide flexible trunk, connecting ODU flange with antenna flangeas shown in Fig.34 This avoids possible condensate to be channelled towards the ODU flange.

Installation of the ODU




- 1+0, align ODU side flange (see Fig.33) to antenna side flange (ODU position depends on thepolarization) see Fig.28.



Note: Hybrid and circulator differ for waveguide orientation. Circulator is shown in Fig.31.







54 ALS - MN.00164.E - 001

4 After flange alignment, turn the ODU body approx. 30° anti–clockwise and then insert it into thesupport and search for alignment between reference tooth on the support (see Fig.28 – 1+0 versionor Fig.30 – 1+1 version) and ODU body reference tooth (see detail Fig.33)


6 Secure ODU body on the support by tightening bolts (1) (see Fig.28 – 1+0 version or Fig.30 – 1+1version). Tightening torque must be 6 Nm.

Final assembly of 1+1 hot stand-by system is shown in Fig.34.

Final assembly of 1+1 frequency diversity system is shown in Fig.35.


8.4 GROUNDING

The ODU must be connected to ground making reference to details of Fig.36.

ALS - MN.00164.E - 001 55

Fig.27 - Wall supporting plate

Extension plate

Supporting plate

M8 bolt and nut

Another possible fixation

56 ALS - MN.00164.E - 001

Fig.28 - Support with ODU fast locking mechanism

Antenna side flange

Support with ODU fast locking mechanism

Reference tooth

Position of antenna side flange

Reference tooth

1

1


ALS - MN.00164.E - 001 57

Fig.29 - Possible mounting positions

58 ALS - MN.00164.E - 001

Fig.30 - Installation onto the wall of the supporting plate

Use 13 mm wrench (18 Nm torque)

Reference toothReference tooth

Hybrid with ODU fast locking mechanism

1

1

RT1 RT2

Optional wave guide

Flexiblewaveguide

ALS - MN.00164.E - 001 59

Fig.31 - Circulator of 1+1 frequency diversity system

60 ALS - MN.00164.E - 001

Fig.32 - Position of the ODU body:1+0 system - depending on the polarisation.

1+1 hot stand-by system - polarisation is always vertical (handle always at the left side)1+1 frequency diversity system - polarisation is always horizontal (handle always at the right

side)

Fig.33 - ODU body reference tooth

Vertical Horizontal

"BNC"

Ground bolt

"N"

O-ring

ALS - MN.00164.E - 001 61

Fig.34 - Final assembly of 1+1 hot stand-by version

Suncover (optional)

62 ALS - MN.00164.E - 001

Fig.35 - Final assembly of 1+1 frequency diversity version

ALS - MN.00164.E - 001 63

1 Bolt

2 Earth cable collar


1

2

64 ALS - MN.00164.E - 001

9 INSTALLATION ONTO THE POLE OF THE ODU AS WITH INTEGRATED ANTENNA

9.1 FOREWORD

The installation onto the pole of the ODU with integrated antenna concerns both 1+0 and 1+1 systems.


Following installation kits are supplied with the equipment depending on different systems:

1+0 system

• 60 to 114 mm pole mounting kit consisting of:

- centering ring and relevant screws (see Fig.37)

- antislide strip (see Fig.38)

- pole support system and pole fixing brackets (see Fig.39)

- ODU with O–ring and devices for ground connection

1+1 system

• pole mounting kit from 60 to 114 mm for 1+1 consisting of:

- centering ring and relevant screws (see Fig.37)

- antislide strip (see Fig.38)

- pole support system and pole fixing brackets (see Fig.39)

• hybrid for hot stand-by version (see Fig.48) or circulator for frequency diversity version (see Fig.49)

• polarization twist disk (see Fig.51)

• 2 ODUs with O–rings and devices for ground connection.





• N.1 3 mm allen wrench.

ALS - MN.00164.E - 001 65


Installation procedure proceeds according with the following steps:

1+0 system

1 installation onto the pole of the support system

2 installation of the antenna

3 installation of ODU

4 antenna aiming

5 ODU grounding

1+1 system

1 installation onto the pole of the support system

2 installation of the antenna

3 installation of hybrid/circulator circuit

4 installation of the two ODUs

5 antenna aiming

6 ODU grounding.

9.4.1 Installation onto the pole of the support system and the antenna

Fig.37 – Set the antenna in such a position as to be able to operate on its rear side. Locate the five threadedholes around antenna flange. Mount centering ring onto antenna flange and tight it with 3 calibrated bolts.Caution: centering ring should be mounted so that the screws do not stick out.

Define if the antenna will be mounted with vertical or horizontal polarization. Check that free drain holesstay at bottom side. Mount bolt type M10x30, in position A leaving it loose of 2 cm approx. With horizontalpolarization mount bolt type M10x30 in position D, leaving it loose of 2 cm approx.

Fig.38 – Mount antislide strip onto the pole. Place blocks as in Fig.38 following antenna aiming direction.Tighten the strip with screwdriver.

Fig.39 – Mount pole supporting system with relevant pole fixing brackets following antenna aiming direc-tion as indicated by arrow. Antislide strip should result at the center of supporting plate. Supporting systemshould lean against antislide clamp with the tooth as in Fig.40.

Position the antenna in such a way that bolt in position A or D of Fig.37 cross through hole E of Fig.41.Secure the support system to the pole by means of the pole fixing brackets and relevant fixing bolts.

Fig.42 – Rotate the antenna body until the remainder three antenna holes coincide with the three supportholes. Secure the antenna to the support by thightening the relevant passing through bolts.

9.4.2 Installation of ODU

1+0 system

1 Apply silicon grease e.g. RHODOSIL PATE 4” to the O–ring (4) of Fig.45 by protecting finger handswith gloves.

66 ALS - MN.00164.E - 001

2 Bring the ODU with the two hands and position the ODU handle at the bottom side. The ODU handlecan assume position of Fig.43 depending on the polarization.

3 Position the ODU body near the support system and align ODU side flange to antenna side flange(see Fig.44). With respect to the flange alignment, turn the ODU body approx. 30° anti–clockwise and then insertthe ODU body into the support and search for alignment between reference tooth on the support(see Fig.44) and ODU body reference tooth (see detail of Fig.45).

4 When alignment is achieved, turn the ODU body clockwise until “clack” is heard and the ODU rota-tion stops.Fig.46 and Fig.47 show ODU housing final position for vertical and horizontal polarization respec-tively.

5 Secure ODU body on the support system by tightening bolts (1) of Fig.44.

1+1 system

Fig.48 (hot stand-by) or Fig.49 (frequency diversity) – Apply silicon grease, type “RHODOSIL PATE 4” toO–rings (1). Insert O–rings (1) and (6) into twist polarization disk (2).

Vertical polarization

Fix the disk on hybrid flange placing marker (4), on disk, close to V mark.

Horizontal polarization

Fix the disk on hybrid flange placing reference (4), on disk, close to H mark.

Caution: Twist disk has two planes. Take care of position marker (4) on twist disk. The position of marker(4) plane should be in contact to hybrid like in figure. Tighten progressively and alternatively four screws(7) with four spring washers (8) with the following torque:


Fig.51 – Fix hybrid to support system with four bolts (1) taking care of RT1/RT2 position shown by labelsof Fig.51. Tighten progressively and alternatively four bolts (1).

In 13 and 15 GHz ODU the polarization disk is fixed to hybrid flange by means of three screws, as shownin Fig.50.

9.4.3 ODU installation




- 1+0, align ODU side flange (see Fig.45) to antenna side flange (ODU position depends on thepolarization) see Fig.44.



Note: Hybrid (see Fig.48) and circulator (see Fig.49) differ for waveguide orientation.




ALS - MN.00164.E - 001 67

4 After flange alignment, turn the ODU body approx. 30° anti–clockwise and then insert it into thesupport and search for alignment between reference tooth on the support (see Fig.44 – 1+0 versionor Fig.48 and Fig.49 – 1+1 version) and ODU body reference tooth (see detail Fig.45)


6 Secure ODU body on the support by tightening bolts (1) (see Fig.44 – 1+0 version or Fig.48 andFig.49 – 1+1 version). Tightening torque must be 6 Nm.

Final assembly of 1+1 hot stand-by version is shown in Fig.52.

Final assembly of 1+1 frequency diversity version is shown in Fig.53.


9.5 ANTENNA AIMING

Antenna aiming for 1+0 version and 1+1 version is the same. The antenna aiming devices allow to performthe following adjustments with respect to the starting aiming position:

- Horizontal ± 15° operating on the nut (3) shown in Fig.54, only after having loosenthe nuts (7), (8), (9), (10) of Fig.55.

- Vertical ± 15° operating on vertical adjustment worm screw (2) shown in Fig.54 onlyafter having loosen nuts (1), (2), (11) of Fig.55 and (4) and (5) of Fig.54.For adjustment from 0° to +30° extract nut (1) Fig.55 and position it in hole(4), extract nut (2) Fig.55 and position it in hole (6). Operate on vertical adjustment worm screw (2) after having loosen nuts (1), (2), (11) of Fig.55and (4) of Fig.54.For adjustment from 0° to –30° extract nut (1) of Fig.55 and position it in hole(3), extract nut (2) of Fig.55 and position it in hole (5). Operate on verticaladjustment worm screw (2) after having loosen nuts (1), (2), (11) of Fig.55and (4) of Fig.54.For vertical adjustment some markers, every 10°, are available on support.The bigger marker gives 0° starting aiming position. Once the optimum aimingposition is obtained, tighten firmly the four nuts (1), (2), (11) of Fig.55 and(4) and (5) of Fig.54 for vertical adjustment and the four nuts (7), (8), (9),(10) of Fig.55 for horizontal adjustment. Tighten with 15 mm wrench and32 Nm torque.

9.6 COMPATIBILITY

The pole installation kit of the ODU unit in 1+0 and 1+1 configuration is compatible with integrated antennacomplying with SIAE standard with measures 0.2 m, 0.4 m, 0.6 m, 0.8 m of diameter.

9.7 GROUNDING

See Fig.56. On ODU grounding can be connected with the available bolt spring washer and flat washers asshown.

68 ALS - MN.00164.E - 001

1 Antenna

2 Calibrated Allen screw

3 Centering ring

Fig.37 - Centering ring position

A

B C

D D

A B

C

A

B

C1

2

3

Horizontal polarizationVertical polarization

3 mm Allen key2,5 Nm torque

ALS - MN.00164.E - 001 69

1 Steel belt

2 Plastic blocks

Fig.38 - Antislide strip

1

2

70 ALS - MN.00164.E - 001

1 Pole fixing brackets

2 Tooth

3 Bolt

4 Pole support system

Fig.39 - Support mount on pole

2

3Antenna aiming direction

15 mm wrench32 Nm torque

1

3

1

3

3 3

3

ALS - MN.00164.E - 001 71

1 Tooth

Fig.40 - Supporting system position

Fig.41 - Hole E

1

Antenna aiming direction

E

72 ALS - MN.00164.E - 001

A, B, C, D Bolt slots

Fig.42 - Antenna installation on pole support

Fig.43 - Position of the ODU handle depending on the polarisation for 1+0. For 1+1 the polari-sation is always horizontal. Handle at the right side.

DA

B C

15 mm wrench32 Nm torque

Vertical Horizontal

ALS - MN.00164.E - 001 73

H: Reference tooth

Fig.44 - Support system for ODU housing and reference tooth in evidence

1

1

1

V

V

H

H


1 13 mm wrench 6 Nm torque


Horizontalpolarization

74 ALS - MN.00164.E - 001


Fig.46 - ODU housing final position for vertical polarization

"N"

"BNC"

Ground bolt

ODU side flange

Reference tooth

O-ring

30°

ALS - MN.00164.E - 001 75

Fig.47 - ODU housing final position for horizontal polarization

30°

30°

76 ALS - MN.00164.E - 001

1 O–ring

2 Polarization twist disk

3 Hybrid mechanical body

4 Position marker of twist disk

5 Reference label for twist disk

6 O–ring

7 Allen screws

8 Spring washer

Fig.48 - Hybrid and polarization disk

2

1

3

4

5

6

7

8

ALS - MN.00164.E - 001 77

1 O-Ring

2 Polarizer disk

3 Circulator mechanical body

4 Disk position indication

5 Disk reference

6 O-Ring

7 Allen screws with spring washers

Fig.49 - Circulator and polarization disk

7

1

24

6

5

3

78 ALS - MN.00164.E - 001

Fig.50 - Fixing of the polarization disk (only for 13 GHz and 15 GHz)



ALS - MN.00164.E - 001 79

1 Bolts

2 Spring washer

Fig.51 - Hybrid mount on pole support

21

1


RT2

RT1

80 ALS - MN.00164.E - 001

Fig.52 - ODU final position for 1+1 version

Fig.53 - Final ODU assembly of 1+1 frequency diversity version

ALS - MN.00164.E - 001 81

1 Marker

2 Vertical adjustment

3 Horizontal adjustment

4 Bolt

5 Fixing nut

Fig.54 - Vertical and horizontal adjustments

12

34

5

82 ALS - MN.00164.E - 001

1., 2., 3., 4. Horizontal aiming block bolts

5., 6., 7. Vertical aiming block bolts

8., 11. Threaded hole for vertical aiming up to –30°

9., 10. Threaded hole for vertical aiming up to +30°

Fig.55 - Antenna aiming block

2

1 3

5

4

69

10

87

11





ALS - MN.00164.E - 001 83

1 Bolt



1

2

84 ALS - MN.00164.E - 001

10 INSTALLATION ONTO THE POLE OF THE ODU AS WITH INTEGRATED ANTENNA (KIT V32307, V32308, V32309)

10.1 FOREWORD

The description concerns pole mounting of ODU, in 1+0 and 1+1 system, using following installation kits:

- V32307 for ODU with frequency from 10 to 13 GHz



Differences regard the dimensions and the presence of the centring ring (see Fig.57):

- V32307 centring ring for antenna flange from 10 to 13 GHz

- V32308 centring ring for antenna flange from 15 to 38 GHz

- V32309 no centring ring (and relevant screws).


Following installation kits are supplied with the equipment depending on different systems.

1+0 system

• 60 to 129 mm pole mounting kit:

- centring ring and relevant screws

- pole support system plus antenna (already assembled) and pole fixing brackets

- 1+0 ODU support and relevant screws

- ODU with O–ring and devices for ground connection

1+1 system

• 60 to 129 mm pole mounting kit:

- centring ring and relevant screws

- pole support system plus antenna (already assembled) and pole fixing brackets

- 1+0 ODU support

- hybrid and relevant screws

- polarization twist disk and relevant screws

- 2 ODUs with O–rings and devices for ground connection.

ALS - MN.00164.E - 001 85


• N.1 2.5 mm Allen wrench



• N.1 13 mm spanner

• N.2 17 mm spanner.


Installation procedure is listed below:

1+0 system

1 antenna polarization

2 installation of the centring ring on the antenna

3 installation of 1+0 ODU support

4 installation onto the pole of the assembled structure

5 installation of ODU

6 antenna aiming

7 ODU grounding

1+1 system

1 antenna polarization

2 installation of the centring ring on the antenna

3 installation of 1+0 ODU support

4 installation onto the pole of the assembled structure

5 installation of hybrid (hot stand-by version) or circulator (frequency diversity version)

6 installation of ODUs

7 antenna aiming

8 ODU grounding.

86 ALS - MN.00164.E - 001

10.5 1+0 MOUNTING PROCEDURES

10.5.1 Setting antenna polarization

Fig.57 – Set the antenna in such a position to operate on its rear side. Locate the four M3 Allen screwsaround the antenna flange. Unscrew them (use 2.5 mm Allen wrench) and position the antenna flange ac-cording on: horizontal wave guide –> vertical polarization, vertical wave guide –> horizontal polariza-tion. Screw again the four Allen screws (torque = 1 Nm).

10.5.2 Installation of the centring ring on the antenna

Fig.57 – Set the antenna in such a position to operate on its rear side. Locate the three holes around theantenna flange. Mount the centring ring onto antenna flange and tight it with the 3 Allen screws M4 (use3mm Allen wrench, torque 2 = Nm).

10.5.3 Installation of 1+0 ODU support

Fig.57 – Mount the support onto assembled structure (pole support system plus antenna) using the fourM8 Allen screws (use 6 mm Allen wrench, torque 18 = Nm). Two of the four screws, diagonally opposed,must be mounted with the two bushes around.

10.5.4 Installation onto the pole of the assembled structure

Fig.57 – Mount the assembled structure on the pole using the two pole fixing brackets and the four M10screws (use 17 mm spanner, torque = 13 Nm); the heads of the screws are inserted on the antenna side,the four nuts and the springs between nut and brackets are inserted on bracket side.

10.5.5 Installation of ODU (on 1+0 support)

Fig.58 – Apply silicon grease (e.g. RHODOSIL PATE 4”) on the O–ring by protecting fingers with gloves.

Fig.59 – Bring the ODU with the two hands and position the ODU handle at the bottom side. The handlecan assume the positions shown in the figure depending on the polarization. Position the ODU body nearthe support and align the wave guide of the ODU to the Wave guide of the antenna: respect to the positionof wave guide alignment, turn the ODU body approx. 30° counter–clockwise into the support and searchfor matching between reference tooth on the support (see Fig.60) and reference tooth on the ODU body.

Fig.61 – When alignment of the references teeth is achieved, turn the ODU body clockwise until rotation isstopped. In figure are shown ODU final position for both polarisations.

Fig.60 – When ODU positioning is over, secure ODU body on the support by tightening bolts (use 13mmspanner, torque = 6Nm).

ALS - MN.00164.E - 001 87

10.5.6 Antenna aiming

Antenna aiming procedure for 1+0 version or 1+1 version is the same.

Horizontal aiming: ±5° operating on the 17 mm nut shown in Fig.62 with a 17 mm spanner, only afterhaving loosen the two 17 mm nut on the pivot.

Vertical aiming: ±20° operating on the 13 mm nut shown in Fig.62 with a 13 mm spanner, only after havingloosen the three 13 mm nut on the pole support.

Once optimum position is obtained, tighten firmly all the nuts previously loosen.

10.5.7 ODU grounding

ODU grounding is achieved with:

• M8 screw without washers

• M6 screw with washer

as shown in Fig.63.

10.6 1+1 MOUNTING PROCEDURES

In further page are explained all the mounting step not already discussed in paragraph ”10.5 1+0 MOUNT-ING PROCEDURES”

10.6.1 Hybrid/circulator installation

Fig.64 (hybrid for hot stand-by version) or Fig.65 (circulator for frequency diversity version) – The polar-ization twist disk must be always fixed on hybrid/circulator flange.

Apply silicon grease (e.g. RHODOSIL PATE 4”) on the O–rings by protecting fingers with gloves. Bring thepolarization twist disk with the position marker down. Insert the O–ring into polarization twist disk.

Vertical polarization: fix the twist disk on hybrid/circulator flange placing the marker of the disk towards Vmark.

Horizontal polarization: fix the twist disk on hybrid/circulator flange placing the marker of the disk towardsH mark.

Tighten progressively and alternatively the four screws and spring washer with following torque:


Fig.67 – Fix hybrid body to 1+0 support with four M8 bolts (use 13 mm spanner, torque = 18 Nm), tightenprogressively and alternatively the bolts.

In case of installation of ODU at the frequency of 13 or 15 GHz, the polarizer disk joins the flange of thehybrid with only three screws, as displayed in Fig.66.




88 ALS - MN.00164.E - 001

10.6.2 Installation of ODUs

For both ODUs.

Fig.58 – Apply silicon grease e.g. RHODOSIL PATE 4” to the O–ring by protecting fingers with gloves.

Fig.59 – Bring the ODU with the two hands and position the ODU handle at the bottom side. The handlecan assume the positions shown in the figure depending on the polarization. Position the ODU body nearthe support and align the wave guide of the ODU to the wave guide of the hybrid/circulator: respect to theposition of wave guide alignment, turn the ODU body approx. 30° counter–clockwise and then insert theODU body into the support. For 1+1 system the handle of the ODU is always positioned on the right. Thepolarization twist disk on the hybrid/circulator matches the antenna polarization.

Fig.68 – When alignment of the reference teeth is achieved, turn the ODU body clockwise until the rotationstops. In figure are shown ODUs final position.

Fig.60 – When ODU positioning is over, secure ODU body on the support by tightening bolts (use 17 mmspanner, torque = 6 Nm).

WARNING: Internal codes (e.g. installation items, antennas, PCB) are here reported only as example. TheManufacturer reserves the right to change them without any previous advice.

At the end of the installation the system will be as in Fig.68 for hot stand-by version or as in Fig.69 forfrequency diversity version.

Fig.57 - 1+0 pole mounting

Four 13mm screws

Two bushes

1+0 support

Three 3mm Allen screws (not present in V32309)

Centring ring(not present in V32309)

Antenna

ALS - MN.00164.E - 001 89


Fig.59 - Position of the ODU body:1+0 system - depending on the polarisation.

1+1 hot stand-by system - polarisation is always horizontal (handle always at the right side)1+1 frequency diversity system - polarisation is always vertical (handle always at the left side)

Vertical Horizontal

90 ALS - MN.00164.E - 001

1 6 mm Allen screw

2 Bush (diagonally placed)

3 17 mm Tightening bolts (max torque = 6 Nm)

4 Reference point for horizontal polarization

5 Reference point for vertical polarization

Fig.60 - 1+0 support

1

1

2

2

3

1

1

3

4

5

4

5

ALS - MN.00164.E - 001 91

Fig.61 - ODU final position

Fig.62 - Antenna aiming

Right handle for horizontal polarizationLeft handle for horizontal polarization

Horizontal aiming: two 17mm block screws

Vertical aiming: three 13mm block screws

Pole support

17mm nut for horizontal adjustment of antenna

Internal 5mm Allen screw for vertical

adjustment of antenna

92 ALS - MN.00164.E - 001

1 Bolt



1

2

ALS - MN.00164.E - 001 93

1 O–ring





6 O–ring

7 Allen screws

8 Spring washer

Fig.64 - Hybrid and polarization disk

2

1

3

4

5

6

7

8

94 ALS - MN.00164.E - 001

1 O–ring





6 O–ring

7 Allen screws

8 Spring washer

Fig.65 - Circulator and polarisation disk

7

1

24

6

5

3

8

ALS - MN.00164.E - 001 95

Fig.66 - Fixing of the polarization disk (only for 13 GHz and 15 GHz)



96 ALS - MN.00164.E - 001

Fig.67 - Hybrid/circulator installation

ALS - MN.00164.E - 001 97

Fig.68 - Installation of 1+1 hot stand-by ODUs

Fig.69 - Installation of 1+1 frequency diversity ODUs

98 ALS - MN.00164.E - 001

11 INSTALLATION ON POLE OF ODU ALS WITH SEP-ARATED ANTENNA

11.1 TOOLS REQUIRED FOR INSTALLATION

Here below is the list of tools required for installation:

• pole supporting kit for 219 mm pole V46000



• 17 mm open–ended spanner (not supplied)


• 10 mm torque wrench (not supplied)


According with pole diameter use the following pole supporting kit:

• 218 mm pole V46000

• 114 mm pole V46002

• 90 mm pole V46003

Refer to Fig.73 and Fig.74 (1+1), Fig.75 and Fig.76 (1+0).

1 See Fig.70 – Fix the antenna bend at 90° to the ODU antenna flange of branching inserting thegreased O–ring with silicon grease in small quantity (torque wrench 3 mm, screw M4, 2.5 Nm)

2 See Fig.71 – Install the two brackets to branching with two bolts for brackets A and B, without fix-ing.

3 Mount the collar with the self–locking unit (see Fig.72) on bracket and pole, position them perpen-dicular to the pole and fix them (M10 32 Nm). Fix correctly the three bolts of branching too (M1032 Nm). See Fig.73 and Fig.74 (1+1); Fig.75 and Fig.76 (1+0).

Install bracket (1) on the pole through collar (2). The collar passes through holes (6) of the bracket.The bracket is secured to the pole by means of plain washer (3), spring washer (4) and hexagonalbolt (5). Fix second bracket (16) on ODU branching projection (7) through plain washer (3), springwasher (4) and hexagonal bolt (8).

4 Lean pre–assembled structure as per point 3. on the bracket (1) already installed on the pole.

5 Secure bracket (16) on the pole by using second collar (10).

6 Secure the whole ODU body on the pole by fixing bracket (1) to two projections (9) (one for 1+0)of the branching body through plain washer (3), spring washer (4) and bolt (8).

7 Take transceivers (13) (one in the 1+0 system) and put them in place on the branching shell byaligning two coupling pins on the transceiver shell to coupling holes (16) of Fig.77.Fast coupling levers (14) (see Fig.75) move in such a way to facilitate the correct mechanical cou-pling.

ALS - MN.00164.E - 001 99

8 Screw knobs (15) first by hands and then using 10 mm torque wrench to tighten the two mechanicalbodies (branching and transceiver).Warning: set torque wrench to 4 Nm.

9 If equipment has a frequency > 10 GHz the antenna bend at 90° to connect the antenna is fixed tobranching with quick lock flange connection. You may insert it also later after the final connectionto the pole (see Fig.78).Installation of two ODU 1+0 using the two antenna polarizations may be done in the way shown inFig.79.

10 Connect the grounding cord to projection (≤25 mm2) (15) of Fig.74 or Fig.76 from bolt (M8 18 Nm)provided from the branching. Use a proper bug, adequate to the cable section and with fixing holeØ 8.2 mm. Insert bolt, washer and bug in the proper order.See Fig.80.

11 See Fig.81, Fig.82 and Fig.83.Use the six calibrated screws of pole supporting kit to connect the wave guide between ODU andantenna in the proper polarization. Verify that flange O–ring are inserted correctly, a bit greasedwithout making dirty the flanges. Don’t damage them by fixing.

12 Fix the flexible wave guide to the pole with the proper locks.

13 Insert on ODU–IDU connecting cable the proper connector for outdoor use (N male).

14 Connect the N female connector of ODU to the above–said cable.

15 Insert the coax cable into a grounding kit near to the ODU.

16 Connect the grounding kit cable to the ground centre of the structure.

17 Label the cable with carefulness.

18 Mount the sun–screen with the four screws and relevant bushes (see Fig.84).

19 Check ODU operation using local loops.

20 After checking on both stations proceed to antenna aiming.

100 ALS - MN.00164.E - 001

Fig.70 - ODU 1+1 and 1+0

O-ring

N. 4 screw M4 2.5 NmAllen wrench 3 mm

Antenna bend at 90°

O-ring

N. 4 screw M4 2.5 NmAllen wrench 3 mm

Antenna bend at 90°

ALS - MN.00164.E - 001 101

Fig.71 - ODU 1+0 and 1+1

17 mm open-ended spanner

Bolt M10 32Nm

ODU grounding point

Bracket A

Bracket B

17 mm open-endedspanner

Bolt M10 32Nm

Bracket A

Bracket B

ODU grounding point

102 ALS - MN.00164.E - 001

Fig.72 - Collar mounting ODU 1+0 and 1+1

ALS - MN.00164.E - 001 103

Fig.73 - Side view (1+1)

Fig.74 - Rear view (1+1)

1514

13 1 2

3 4 5

1016

12

7

6

115

9

3 4 8

3 4 8

11

104 ALS - MN.00164.E - 001

Fig.75 - Side view (1+0)

Fig.76 - Rear view (1+0)

131

2

3 4 5

1514

10

16

12

7

11

9

6 153 4 8

3 4 8

ALS - MN.00164.E - 001 105

Fig.77 - Details for transceiver mounting on the branching shell

Fig.78 - Antenna bend

16

16

106 ALS - MN.00164.E - 001

Fig.79 - ODU installation (top view and front view)

Fig.80 - Grounding cord connection

Pole Φ 114 mm

n.1 ODU 1+0

n.1 ODU 1+0

Plain washer

Lug

Plain washer

Spring washer

13 mm open-ended spanner

ALS - MN.00164.E - 001 107

Fig.81 - Wave guide fixing, cable connection

13 mm open-endedspanner

Grounding cable ≥ 25 mm2

Cellflex 1/4"

Grounding kit for cable cellflex 1/4"Ground

Wave guide

108 ALS - MN.00164.E - 001

Fig.82 - Installation on pole of the outdoor unit (1+0)

Grounding cable ≥ 25 mm2 .

Ground

Ground lug

Cellflex 1/4"

Grounding kit for cable Cellflex

Guide lock

Wave guide

Pol. VPol. H

Antenna tie-rods(if provided)

ALS - MN.00164.E - 001 109

Fig.83 - Installation on pole of 3 m antenna of two ODU using two polarization

Fig.84 - Sun–screen

Ground lug

Cellflex 1/4"

Ground kit Cellflex cable

Grounding cable ≥ 25 mm2

Ground

Guide lock

Wave guide

Pol. VPol. H

Antenna tie-rods (if provided)

110 ALS - MN.00164.E - 001

12 INSTALLATION ON POLE OF THE ODU ALS WITH INTEGRATED ANTENNA

12.1 FOREWORD

The installation on pole of the ODU with integrated antenna concerns both 1+0 and 1+1 systems.

12.2 NEEDED TOOLS

Set of accessories supplied:

• pole supporting kit (V52000)

• alignment regulating kit (V00501)

• integrated antenna

• ODU to antenna connecting kit (V52004–V520093)

• 17 mm open–ended spanners (not supplied)

• 3 mm allen wrench (not supplied)



• 10 mm torque wrench (not supplied)

• n° 1 Phillips screwdriver (not supplied).


Warning: If required each attached figure shows the maximum tightening torque for the screw tightening.Proceed as listed below:

1 Fig.85 – Verify that the antenna is polarised according to the requirements, by comparing it to thementioned figure. Otherwise, unscrew the four screws (2) and rotate by 90 degrees the body of thefeed (1). The four screws (2) are to be fastened at the centre of the elliptic slot that allows the po-larisation to be fine–adjusted within ± 3 degrees.

2 Fig.86 – Set the antenna in such a position as to be able of working on its rear side.

3 Fig.86 – Take out from the unit to antenna connection kit the mechanical details shown in the figure.Apply the O–rings of the trunk (2) a small quantity of silicon grease N00706 and then mount thetrunk on the antenna feed body. In the case of horizontal polarisation mount the twisted wave–guide trunk.

3 The code changes as function of operating frequency and antenna polarisation.

ALS - MN.00164.E - 001 111

4 Fig.87 – Take out the pole supporting kit. Unscrew the screws (4) and remove the supporting brack-et (3) from the supporting ones (1) and (2).

5 Fig.88 – Install the supporting bracket (5) on the antenna (1) rear side by means of the four screws(2), the spring washers (3) into the holes (6).

6 Fig.89 – Install the antisliding collar on the pole.

7 Fig.89 – Install on the pole the supporting brackets (5) and (6) by means of two collars (4), a nut(1), a washer (3) and a spring washer (2). Position the brackets (5) and (6) aligned with the direc-tion (7) of the radio beam and then tighten them to the pole in a permanent way.

8 Fig.90 – Fix the antenna to the pole inserting the pin (4) of the supporting bracket (2) into the pivot(8) of the supporting bracket (1) and tighten lightly by means of the screws (7), spring washers(5), washers (6).

9 Fig.90 – Unscrew the nut (3) fixed on the plate (2). Take the pins (1) and position them as shownin the mentioned figure. Screw again the nut (3) till to have the plate (2) at beating ready to beclamped by means of the screw (4).

10 Fig.92 (for 1+1 branching); Fig.93 (for 1+0 branching) – Place the branching projections (11) onthe bracket (1). Insert the screws (4), the spring washers (5), washers (6) without tighten them tothe end. Conduct the branching so long as the two pins of the branching flange fit in the correspond-ing holes of the antenna flange.Warning: Before securing the two flanges via coupling ring (7) it is compulsory to apply some sil-icon grease N00706 on the ring thread. Terminate by tightening screws (4).

11 Fig.94 (1+1) and Fig.95 (1+0) – Take transceivers (1) and put them in place on the branching shellby aligning two coupling pins on the transceiver shell to coupling holes (10) of Fig.92 (1+1) andFig.93 (1+0).Fast coupling levers (2) move in such a way to facilitate the correct mechanical coupling.

12 Fig.94 (1+1) and Fig.95 (1+0) – Screw knobs (3) first by hands and then using 10 mm torquewrench to tighten the two mechanical bodies (branching and transceiver).

13 Fig.92 – Tighten to end screws (4).

14 Fig.94 (1+1) and Fig.95 (1+0) – Connect the grounding cord to projection (4) accessible on thebranching body (5) rear side, and tights it through M8 bolt an relevant plain an spring-washers.

15 Fig.98 – Put the covering shield in place and secure it to the branching body through the four wingscrews making part of the covering.Note: In case of transceiver removal to get access to transceiver fixing knobs it is necessary:

- loose the covering wing screws

- lift the covering up, pull it backward and then lower it down to put it in place.

12.4 ANTENNA ALIGNMENT

The antenna alignment devices allow to perform the following adjustments with respect to the starting aim-ing position:

- horizontal: ± 15°, operating on the nut (3) shown in Fig.96, only after having loosenthe screws (2)

- vertical ± 20°, operating on the nut (1) shown in Fig.97, only after having loosenthe screws (2)

- polarisation ± 3°, unscrewing the four screws (2) shown in Fig.99, remove the screw(4) and loosen the other four screws (3). Turn then the antenna feed bodytill to optimise the polarisation. Tighten the four screws (2) the four ones(3) and the screw (4).

Once the optimum aiming position is obtained, tighten firmly the four nuts (3) shown in Fig.96 for the hor-izontal adjustment and the four nuts (1) shown in Fig.97 for the vertical one.

After tightening the screws, it is possible to recover the fine alignment kit for further aims.

112 ALS - MN.00164.E - 001

1 Antenna feed

2 No. 4 M4x14 screws

a Vertical polarisation

b Horizontal polarisation

Fig.85 - Checking the antenna polarisation

a b

ALS - MN.00164.E - 001 113

1 Antenna feed

2 Wave guide trunk straight or twisted

3 N° 5 M4x14 screws

4 N° 5 flat washers

5 N° 5 spring washers

6 Drain holes

Fig.86 - Rear view of the antenna

114 ALS - MN.00164.E - 001

1 Supporting bracket

2 Supporting bracket for pole installation


4 No. 4 screws

5 No. 4 spring washers

6 No. 4 flat washers

7 Teflon washer

Fig.87 - Pole supporting kit

7

ALS - MN.00164.E - 001 115

1 Antenna

2 No. 4 M10x20 screws (max torque = 45 Nm)


4 Drain holes


6 Fixing holes

7 Wave–guide trunk

8 Quick–coupling flange

Fig.88 - Supporting bracket mounting on the antenna rear side

116 ALS - MN.00164.E - 001

1 Pole mounting collars


3 Pole mounting supporting bracket

4 Radio beam direction

5 Antisliding collar

Fig.89 - Supporting bracket mounting

5

43

2

1

ALS - MN.00164.E - 001 117



3 Antenna

4 Pin



7 No. 4 M10x25 screws (max torque = 45 Nm)

8 Pivot

Fig.90 - Antenna fixing to the pole

118 ALS - MN.00164.E - 001

1 Pin

2 Plate

3 Alignment adjustment nut

4 M6 screws

Fig.91 - Alignment adjustment kit mounting

ALS - MN.00164.E - 001 119



3 1+1 branching

4 No. 4 screws



7 Quick–coupling ring with hexagonal nut for tightening (f ≤15 Ghz, max torque = 25 Nm; f ≥18 Ghz,max torque = 20 Nm)

8 O–ring

9 ODU flange

10 Coupling holes

11 Branching projections

Fig.92 - 1+1 branching mounting on supporting bracket

10

10

120 ALS - MN.00164.E - 001



3 1+0 branching

4 No. 3 screws



7 Quick–coupling ring with hexagonal nut for tightening (f ≤15 Ghz, max torque = 25 Nm; f ≥18 Ghz,max torque = 20 Nm)

8 O–ring

9 ODU flange

10 Coupling holes

Fig.93 - 1+0 branching mounting on supporting bracket

10

ALS - MN.00164.E - 001 121

1 Transceiver (number 1 on the left)

2 Fast coupling levers

3 Fixing knobs with hexagonal nut for tightening (max torque = 4 Nm)

Fig.94 - ODU mounting in 1+1 configuration

4

122 ALS - MN.00164.E - 001

1 Transceiver

2 Fixing knobs with hexagonal nut for tightening (max torque = 4 Nm)

Fig.95 - ODU mounting in 1+0 configuration

4

ALS - MN.00164.E - 001 123

1 Fixed pin

2 Screws

3 Nut for horizontal alignment adjustment

Fig.96 - Horizontal alignment adjustment

124 ALS - MN.00164.E - 001

1 Nut for vertical alignment adjustment

2 Screws

Fig.97 - Vertical alignment adjustment

ALS - MN.00164.E - 001 125

Fig.98 - Outdoor unit with covering

1

Shield

126 ALS - MN.00164.E - 001

1 Antenna feed

2 No. 4 screws

3 No. 4 screws

4 No. 1 screws

Fig.99 - Checking the antenna alignment

4

ALS - MN.00164.E - 001 127

12.5 INSTALLATION NOTE ON FREQUENCY REUSE SYSTEMS

The ALS with frequency reuse is double carrier systems with one carrier on vertical path and one carrieron horizontal path.

One carrier can have a traffic of one STM–1 for a total of 2xSTM–1 or 2xSTM–1 for a total of 4xSTM–1traffic.

For frequency reuse systems to assume the achievement of guaranteed performances of XPIC functional-ities some care shall be taken for IDU–ODU cabling.

Antennas

The antennas will be double polarization antennas.

RF channel

RF channel shall be the same for vertical polarization path and horizontal polarization path.

J0

J0 SOH byte shall be different on vertical polarization path and horizontal polarization path.

ATPC

Low ATPC level shall be 15 dB higher than BER 10–6 threshold (see chapter “23 SYSTEM CHARACTERIS-TICS”).

IDU–ODU cable

The IDU–ODU cable length difference shall be:

• Cable from RT1A to RIM1A and cable from RT1B to RIM1B (see Fig.100 and Fig.101) shall not differmore than:

- 3 meters for 2xSTM1 links 32QAM


- 1,5 meters for 4xSTM1 links 128QAM

• IDU RIM to RIM cable. The cables RIM1A to RIM1B and RIM2A to RIM2B shall be SMA to SMA cables– F01693 and connected as Fig.102 and Fig.103.

Additional notes

On ALS with XPIC some manual operations create other manual operation, for more information pleaserefer to chapter “16.4 NOTES ON MANUAL OPERATIONS ON ALS WITH XPIC (IDU ALS)”.

On ALS with XPIC a fault management procedure is used to protect the not alarmed path, for more infor-mation please refer to chapter “19.3 FAULT MANAGEMENT PROCEDURE FOR FREQUENCY REUSE SYSTEMSWITH XPIC”.

128 ALS - MN.00164.E - 001

Fig.100 - IDU-ODU cables


Fig.102 - XPIC SMA to SMA cables

Fig.103 - XPIC SMA to SMA cables

RIM1A

RIM1B

RIM2A

RIM2B

RT1A

RT1B

RT2A

RT2B

RIM1A

RIM1B

RT1A

RT1B

-+

X X

XX

+ -W.S.1 W.S.2 V11

ONONONON

FAIL1 2 3 4

REM

R

USER IN/OUTRS232LCT

TEST

ODUIDU

Q3

XX

+

-RIM

RIM

1

2

2

1

RIM

RIM-

+

X X

XX

+

-RIM

RIM

1

2

21

RIMRIM

-

+

X X

IDUODU

REMTEST


Q3R

V11W.S.2W.S.1


ALS - MN.00164.E - 001 129

13 INSTALLATION NOTE ON FREQUENCY REUSE SYSTEMS

13.1 Frequency reuse

The ALS with frequency reuse is double carrier systems with one carrier on vertical path and one carrieron horizontal path.One carrier can have a traffic of one STM-1 for a total of 2xSTM-1 or 2xSTM-1 for a total of 4xSTM-1 traffic.For frequency reuse systems to assume the achievement of guaranteed performances of XPIC functional-ities some care shall be taken for IDU-ODU cabling.

ALS XPIC systems use IDU ALS; ODU can be AS version or ALS version, in accordance with necessity.

13.2 Characteristics

Antennas

The antennas will be double polarization antennas.

RF channel

RF channel shall be the same for vertical polarization path and horizontal polarization path.

J0

J0 SOH byte relevant to vertical polarization path shall be different from the one relevant to horizontal po-larization path.

ATPC

Low ATPC level shall be 15 dB higher than BER 10-6 threshold (see chapter “23 SYSTEM CHARACTERIS-TICS”).

IDU-ODU cable

The IDU-ODU cable length difference shall be:

• Cable from RT1A to RIM1A and cable from RT1B to RIM1B (see Fig.104 and Fig.105) shall not differmore than:



- 1,5 meters for 4xSTM1 links 128QAM

130 ALS - MN.00164.E - 001

• IDU RIM to RIM cable. The cables:

- RIM1A to RIM1B

- RIM2A to RIM2B

shall be SMA to SMA cables - F01693 and connected as Fig.106 and Fig.107.

Additional notes

On ALS with XPIC some manual operations create other manual operation, for more information pleaserefer to chapter “16.4 NOTES ON MANUAL OPERATIONS ON ALS WITH XPIC (IDU ALS)”.

On ALS with XPIC a fault management procedure is used to protect the not alarmed path, for more infor-mation please refer to chapter “19.3 FAULT MANAGEMENT PROCEDURE FOR FREQUENCY REUSE SYSTEMSWITH XPIC”.



RIM1A

RIM1B

RIM2A

RIM2B

RT1A

RT1B

RT2A

RT2B

RIM1A

RIM1B

RT1A

RT1B

ALS - MN.00164.E - 001 131

Fig.106 – Connection cables

Fig.107 – Connection cables

-

+

X X

XX

+ -W.S.1 W.S.2 V11

ONONONON

FAIL1 2 3 4

REM

R

USER IN/OUTRS232LCT

TEST

ODUIDU

Q3

XX

+

-RIM

RIM

1

2

2

1

RIM

RIM-

+

X X

XX

+

-RIM

RIM

1

2

21

RIMRIM

-

+

X X

IDUODU

REMTEST


Q3R

V11W.S.2W.S.1


132 ALS - MN.00164.E - 001

14 ODU AS SUBSTITUTION FOR 1+1 FREQUENCY DIVERSITY SYSTEM

14.1 1+1 FREQUENCY DIVERSITY SYSTEM: SUBSTITUTION OF ODU

In 1+1 frequency diversity system the separation of an ODU from circulator support causes a service in-terruption on the other ODU too.

The following procedure must be followed order to avoid this interruption (see Fig.108):

1 locate the ODU (1) to substitute, loose the bolts (4), insert the guillotine shutter (3) in the slot (2)until the end

2 rotate and extract the ODU (1) as usual (see “System Installation” chapter)

3 insert the new ODU as usual (see “System Installation” chapter)

4 extract the shutter (3) from slot (2), tighten the bolts (4).

ALS - MN.00164.E - 001 133

1 ODU to be substituted

2 Slot

3 Guillotine shutter

4 Bolts (6 Nm torque)

Fig.108 - Substitution of ODU in 1+1 frequency diversity system

3

1

2

4

4

134 ALS - MN.00164.E - 001

ALS - MN.00164.E - 001 135

Section 3.LINE-UP AND MAINTENANCE

15 PROGRAMMING AND SUPERVISION

15.1 GENERAL

The radio equipment was designed to be easily programmed and supervised.

The following tools are implemented to the purpose:

• SCT Subnetwork Craft Terminal + LCT Local Craft Terminal. They are used for remote and local con-trol of a subnetwork consisted of a maximum of 100 equipment.

• NMS5-UX Network Management. It is used for the remote control of an entire network consisted ofdifferent SIAE equipment.

For details refer to relevant documentation. SCT/LCT documentation is available as help on-line.

136 ALS - MN.00164.E - 001

16 LINE-UP OF THE RADIO HOP

16.1 LINE-UP OF THE RADIO HOP

The line-up consists of the following steps:

• on site radio terminal installation (perform user connections and ODU installation as described inthe relevant chapters)

• equipment switch-on (operate the ON/OFF switch on the IDU front)

• antenna alignment for maximum received RF signal level

• network element configuration

• check measurements.

16.1.1 Antenna alignment and received field measurement

Purpose of antenna alignment is to maximize the RF received signal level.

Proceed as follows:

• connect a multimeter to BNC connector on the ODU for AGC measurement

• adjust antenna pointing as soon as the maximum AGC voltage value is achieved.

16.1.2 Network element configuration

A factory default address is assigned to each network element that must normally be re-configurated onsite following the network administrator rules. To the purpose it is required to connect the PC, where theSCT/LCT program has been installed, to the network interface port. This has to be done via serial cable(connector RS232) or USB cable (connector LCT).

Warning: the checks that follow require a good knowledge of the program use.

The description of each menu and relevant windows are given by the program itself as help on line.

Run the program and perform the connection to equipment by choosing from menu “Option” the connec-tion made via serial cable or via LAN.

Perform the login to the equipment by entering:

• Equipment IP address 4

• User ID (default: SYSTEM)

• Password (default: SIAEMICR)

Proceed to re-configurate the network element according with the following procedure:

4 If the Ethernet interface IP address is not known, select the serial cable connection where the IP ad-dress is shown automatically.

ALS - MN.00164.E - 001 137

• IP Address: select menu “Equipment” from the menu bar and then Communication Setup->PortConfiguration. Enter the required port addresses in the available communication ports. Press ? fordetails.

• Routing Table and Default Gateway: select menu “Equipment” from the menu bar and then Com-munication Setup-> Routing Table: enter the routes or default gateway if necessary. Press ? fordetails.Warning: the routing policy depends on the routing type: manual IP/OSPF/Is-IS. The relevantrouting rules must be normally given by network administrator.

• Remote Element Table: select menu “Tools” from menu bar and then Subnetwork ConfigurationWizard. Station name and remote element table must be assigned following description of the con-textual help on-line (?).

• Agent IP Address: select menu “Equipment” and then “Properties”. Assign the address in accord-ance to the address of the remote element you want to reach.

16.1.3 Radio checks

It is advisable to perform the following measurements to check the correct operation of the radio hop.

To the purpose make use of the SCT/LCT program and relevant help on line.

The measurements list of the following:

• transmitted power

• received power

• RF frequency

• BER measurement.

All these checks make use of the SCT/LCT program.

• Transmitted power, received RF level, RF frequency

- Run SCT/LCT program and then perform the connection to the equipment you want to check.

- Make double click on the select equipment until main RADIO window is shown.

- On top of the window Tx/Rx power and frequency values are displayed. In case of Tx power andfrequency setup proceed to Branch 1/2 and Power/Frequencies submenus.

• BER measurement

- RUN SCT/LCT program and then perform the connection to the equipment you want to check.

- Make double click on the selected equipment until main RADIO window is shown.

- On the left side select BER 1/2 measure. In alternative it is possible to use the PRBS function ifone line is free.

- Perform the BER measurement and check that values comply with the requirements.

138 ALS - MN.00164.E - 001

16.2 LASER FUNCTIONALITY TEST

16.2.1 Switch-on procedure

• Connect input to output with a fibre optic cable

• Program and look for STM-1 East/West window

• Click on STM-1 West (East) of LCT program until relative window is displayed

• Set Automatic Shut-down to “auto” mode into SCT/LCT program

• Check that Led “ON" is ON.

In case of opposite situation is shown, wait for expiration of "x" time present in "Auto Restart Time" box(range from 60 to 300 sec.).

Note: The laser is switched on every "x" seconds for 2 seconds thus permitting the opposite side laser toreceive and consequently the two transmitters to be switched on.

If faster laser switch-on is required, set "automatic shutdown" to "manual" mode and then press "restart"to send immediately the switch-on control.

Note: if laser power measurement is required, set "automatic shut-down" to "test" mode, preset test timefrom 2 to 100 sec. and then press "Restart" to activate the test.

16.2.2 Automatic laser shut-down check

• Set automatic shut-down to “auto” mode

• Remove the optical cable from Rx West (East) side the optical cable and check that Led “ON” goesoff.

16.3 LINE-UP OF RADIO HOP FOR FREQUENCY REUSE SYSTEMS WITH XPIC (IDU ALS)

Line-up consists of the following steps:

• Line-up of radio hop (as described in relevant chapter)

• Additional line-up operations for XPIC

16.3.1 Additional line-up operations for XPIC

Additional line-up steps are:

1 Check fade margin on both paths (horizontal or vertical) while making the fade margin on one paththe other should be switched off. Measurements shall be done both ends.

2 Verify decoupling between Tx vertical and receiver horizontal and vice-versa, switching off thetransmitter relative to Rx, see Fig.109.

- Step 1: Tx (H) off into side B, verify Tx (V) into side B decoupling to Rx (H) into site A

- Step 2: Tx (V) off into site B, verify Tx (H) into site B decoupling to Rx (V) into site A

ALS - MN.00164.E - 001 139

- Step 3: Tx (H) off into side A, verify Tx (V) into side A decoupling to Rx (H) into site B

- Step 4: Tx (V) off into side A, verify Tx (H) into side A decoupling to Rx (V) into site B.

3 Connect everything to have normal operation with XPIC

4 Start from everything perfectly running:

- set ATPC off on all Tx

- set Tx maximum power in all transceiver

- insert an attenuation equal to antenna XPD. Practically decrease output power of 17 dB on atransmitter by SCT/LCT. Verify that in this situation the corresponding receiver doesn’t have er-rors. To verify XPIC functionality, disconnect XPIC Rx cable and verify that there are errors inthe receiver. Restore output power of Tx. Do the same on all receivers.

Fig.109 – Decoupling verify - Step 1

16.4 NOTES ON MANUAL OPERATIONS ON ALS WITH XPIC (IDU ALS)

On ALS with XPIC some manual operations create automatically other manual operations. The purpose isto give a correct functionality of loop IF, loop RF and save traffic on the other path where there is no forcing.

16.4.1 Management of automatic manual operations

The manual operations discussed into this document are:

• loop RF

• loop IF

• carrier only

• Tx off

• RT PSU off.

Tx

Rx

Tx

Rx

Tx

Rx

Tx

Rx

V

H

V

H

Site A Site B

140 ALS - MN.00164.E - 001

16.4.2 Automatically activated manual operations

For configuration with XPIC in systems 1+0 the Tab.16 details for any manual operation which are the au-tomatically activated manual operations in local equipment and remote equipment.

Tab.16 – Configuration: XPIC 1+0

Local terminal Remote terminal

Manual operationAutomatically activated manual

operationAutomatically activated manu-

al operation

Radio-1ALoop RF

Rim 1A Xpic Input DisableRim 1B Xpic Input Disable

Radio -1A transmitter off

Radio-1BLoop RF


Radio -1B transmitter off

Radio-1ALoop IF


Radio -1A transmitter off

Radio-1BLoop IF


Radio -1B transmitter off

Radio-1ACarrier only

Rim 1B Xpic Input Disable

Radio-1BCarrier only

Rim 1A Xpic Input Disable

Radio-1ATx off


Radio-1BTx off


Radio-1ART PSU off

Rim 1B Xpic Input DisableRadio-1A transmitter off


Radio-1BRT PSU off

Rim 1A Xpic Input DisableRadio-1B transmitter off


ALS - MN.00164.E - 001 141

Tab.17 – Configuration: XPIC, 1+1, Hot stand-by/Hot stand-by, Space Diversity

Local termination Remote terminal



al operation

Radio-1ALoop RF

Rim 1A Xpic Input DisableRim 2A Xpic Input DisableRim 1B Xpic Input DisableRim 2B Xpic Input Disable

Radio-1A transmitter offRadio-2A transmitter off

Radio-2ALoop RF


Radio-1A transmitter offRadio-2A transmitter off

Radio-1BLoop RF


Radio-1B transmitter offRadio-2B transmitter off

Radio-2BLoop RF


Radio-1B transmitter offRadio-2B transmitter off

Radio-1ALoop IF


Radio-2ALoop IF


Radio-1BLoop IF


Radio-2BLoop IF



If Tx 1A local is active:Rim 1B Xpic Input DisableRim 2B Xpic Input Disable




If Tx 1B local is active:Rim 1A Xpic Input DisableRim 2A Xpic Input Disable



Radio-1ATx off


Radio-2ATx off


Radio-1BTx off


Radio-2BTx off


Radio-1ART PSU off

Rim 1B Xpic Input DisableIf Tx 1A local is active:

Rim 1B Xpic Input DisableRim 2B Xpic Input Disable

142 ALS - MN.00164.E - 001

Radio-2ART PSU off

Rim 1B Xpic Input DisableIf Tx 2A local is active:

Rim 1B Xpic Input DisableRim 2B Xpic Input Disable

Radio-1BRT PSU off

Rim 1A Xpic Input DisableIf Tx 1B local is active:

Rim 1A Xpic Input DisableRim 2A Xpic Input Disable

Radio-2BRT PSU off

Rim 2A Xpic Input DisableIf Tx 2B local is active:

Rim 1A Xpic Input DisableRim 2A Xpic Input Disable




al operation

ALS - MN.00164.E - 001 143

Tab.18 – Configuration: XPIC, 1+1, Frequency Diversity/Frequency Diversity, Space Diversity




al operation

Radio-1ALoop RF


Radio-1A transmitter off

Radio-2ALoop RF



Radio-1BLoop RF


Radio-1B transmitter off

Radio-2BLoop RF



Radio-1ALoop IF



Radio-2ALoop IF



Radio-1BLoop IF



Radio-2BLoop IF











Radio-1ATx off


Radio-2ATx off


Radio-1BTx off


Radio-2BTx off


Radio-1ART PSU off



Radio-2ART PSU off



Radio-1BRT PSU off



Radio-2BRT PSU off



144 ALS - MN.00164.E - 001

17 LINE UP OF ETHERNET LIM

17.1 GENERAL

The argument of the chapter is the line-up of Ethernet traffic in a radio link with Ethernet LIM con SCT/LCTsoftware details referred to Ethernet application.

Two configurations for LAN transmission through the radio link are also described.

Requirements:

• the radio link is active with all the parameters properly set

• equipment are set to be reached by supervision

17.2 ETHERNET FUNCTIONALITY

The point to point ALS radio link with Ethernet LIM offers functions of a typical level 2 transparent bridge:

• level 2 QoS management with priority queue control

• flow control

• access to carrier through MAC address examination (MAC filtering)

• VLAN management with VLAN segregation on the carrier

• Spanning-Tree Protocol management, to avoid undesirable loops in the network

• Quality of Service (QoS) is managed at level 2 and 3 with 4 priority queues for every port.

The module can accept Ethernet frames up to 1522Bytes, 1632Bytes and/or 12KB (Jumbo Frame, only onLAN1).

17.3 SWITCH CONFIGURATION

17.3.1 Tributary enabling

First step in Ethernet switch configuration is enable the same E1 tributary number on both equipment ofthe link. Activation of enabled tributaries is performed only when their configuration is the same on localand on remote equipment.

Using LCT software, select Base Band, Line Side, Tributary and enable the same tributary on localequipment and on remote equipment by clicking on the tributary activation switch. To enable the config-uration select Apply button and subsequently Confirm.

Every configuration mistake causes Config mismatch alarm and the unsuccessful enabling of configura-tion itself.

ALS - MN.00164.E - 001 145

17.3.2 SWITCH GENERAL PARAMETERS

Using LCT software, select Base Band, Line Side, Ethernet Switch, the following card are present:

General – set packet size, Max Packet Size, the MAC address duration in address table, MAC Addr. Ag-ing Time (between 15sec. and 63min:45sec.), the sending delay of LinK Loss Forwarding alarm, LLF His-teresys (between 0 and 10 sec.). To enable the configuration select Apply button and subsequentlyConfirm.

Priority – set packets forwarding in output queues, depending on their priority, 802.1P Priority Man-agement, and queue emptying, Scheduling.

In Ethernet Switch window are present the command to open the VLAN map, Virtual Lan Configura-tion, and the level 3 priority management table, PTOS/DSCP:

• Virtual Lan Configuration – In the VLAN map can be added the VLAN ID of all the Virtual LANthat enter the switch, which ports can be crossed by them and how manage the tag after havingcrossed the port: Enab. Unchanged (tag is not modified), Enab. Untagged (tag is deleted), En-ab. Tagged (tag is left), Disabled (port is not crossed).

• PTOS/DSCP – In this table every ToS/DSCP value of input packet is linked to an output queue. Ifpriority tag is not available, the packet is sent to the queue relevant the Default Prority of its inputport.

17.3.3 LAN1

Using LCT software, select Base Band, Line Side, LAN1, the following cards are present:

Interface – following parameters can be set: Flow Control Full Dplx (Auto, Enable, Disable), Speed/Duplex(Full-Duplex-100M, Full-Duplex-1G, Full-Duplex-1G JUMBO), Full-Duplex-1G JUMBO mode jumps theswitch and allows JUMBO frames up to 12KB. Rate Control field limits the port throughput (from 64KB toFull Rate, Disable status included), LLF field selects how to enable Link Loss Forwarding alarm.

Lan per Port (802.1Q) – Output port of packets in input from LAN1 can be set

Filtering (802.1Q):

• Ingress Filtering Check, parameter 802.1Q input filter

- Disable 802-1Q – output port is set in Lan per Port card

- FallBack – If VLAN tag of input packet matches with those defined in VLAN map, the output portis defined in VLAN map, if VLAN tag does not match or is not present, the output port is definedin Lan per Port card

- Secure - If VLAN tag of input packet matches with those defined in VLAN map, the output portis defined in VLAN map, if VLAN tag does not match or is not present, the packet is dropped.

• Frame Egress Mode, output packet VLAN tag management

- Unmodified – VLAN tag of the output packet is not touched, if it is present at the input it remainsat the output also, if it is not present at the input it is not added at the output

- Untagged – the output packet has no tag: if the tag is present at the input, it is removed at theoutput, if the tag is not present at the input, it is not added at the output

- Tagged – if the tag is present at the input, it remains at the output, if the tag is not present atthe input, the output packet receives the input port default VLAN tag

- Add Double Tag – A second tag (Provider tag) is added to the output packet while at the inputpacket of the same port the second tag is removed if recognised as Provider tag

• Default Vid is the VLAN tag set as default to untagged input packet when the output must betagged.

• Force Default Vid if marked, untagged input packets receive the Default Vid as VLAN tag whiletagged input packets have its tag overwritten by Default Vid

146 ALS - MN.00164.E - 001

Priority (802.1P): management of priority of packets in output

• Priority

- Disable – 802.1P parameter is not considered, the packet goes in the output queue pointed outby Default priority

- 802.1P – 802.1P parameter defines the output priority of packets

- IpTos – IPToS/DSCP parameter defines the output priority of packets

- 802.1P- IpTos, 802.1P parameter defines the output priority of packets, in case of its absence,parameter IPToS is evaluated

- IpTos-802.1P, IPToS parameter defines the output priority of packets, in case of its absence,parameter 802.1P is evaluated

• Default priority – for untagged packets with untagged output, is the output queue, for untaggedpackets with tagged output is the output queue and is the value (from 0 min to 7 Max) written as802.1P tag

Laser Control – The LASER shutdown can be configured, the transmitter can be checked and the opticalplug-in module is recognised.

Warning – Don’t look inside optical connector, it’s dangerous for eyes.

Spanning Tree – Bridge level 2 functionality can be configured:

• Enable

- Disabled, the port does not use Spanning Tree Protocol

- Bridge1 o Bridge2, the port uses Spanning Tree Protocol (port has not to be set in Full-Duplex-1G JUMBO mode) in Bridge1 or Bridge2

• Type

- Edge, port does not use Spanning Tree Protocol (there is no redundancy)

- No Edge, port uses Spanning Tree Protocol (there is redundancy)

• Priority, from 0, min, to 15, max

• Path Cost, crossing cost (2000…200000)

17.3.4 LAN2 / LAN3

LAN2 and LAN3 port have the same functions.

Using LCT software, select Base Band, Line Side, LAN2 (or LAN3), the following cards are present:

Interface – following parameters can be set: Flow Control Full Dplx (Auto, Enable, Disable), Speed/Duplex(Full-Duplex-100M, Half-Duplex-100M, Full-Duplex-10M, Half-Duplex-10M). Rate Control field limits theport throughput (from 64KB to Full Rate, Disable status included), LLF field selects how to enable Link LossForwarding alarm.

Lan per Port (802.1Q) – Output port of packets in input from LAN2 (or LAN3) can be set

Filtering (802.1Q):







ALS - MN.00164.E - 001 147




• Default Vid is the VLAN tag set as default to untagged input packet when the output must be tagged.



• Priority







Loop – An electric loop (line side) can be enabled.

Spanning Tree – Bridge level 2 functionality can be configured:

• Enable



• Type





17.3.5 PORT-A / PORT-B

Depending on link configuration (point to point or East/West) one (PORT-A) or two internal ports (PORT-Aand PORT-B) are available. Consequently, using LCT software, select Base Band, Line Side, PORT-A (orPORT-B), the following cards are present:

Interface – Port can be enabled or not.

Lan per Port (802.1Q) – Output port of packets in input from PORT-A (or PORT-B) can be set

Filtering (802.1Q):




148 ALS - MN.00164.E - 001







• Default Vid is the VLAN tag set as default to untagged input packet when the output must betagged.



• Priority







Spanning Tree – Bridge functionality can be configured:

• Enable



• Type





17.3.6 SPANNING TREE

Spanning Tree function of entire equipment can be configured. Using LCT software, select Base Band,Line Side, Spanning Tree, the following cards are present:

General – Parameters:

• Force Version – Stp 802.1 D or Rapid Stp 802.1w, SPT version

• Hello Time – generation period of BPDU (Bridge Protocol Data Unit) messages, values are between1 and 10 sec., recommended 2 sec.

ALS - MN.00164.E - 001 149

• Max Age – values between 6 and 40 sec., recommended 20 sec.

• Forward Delay – values between 4 e 30 sec., recommended 15 sec.

• Summary – Spanning Tree status

Bridge1 e Bridge 2 – Depending on link configuration (point to point or East/West) one (PORT-A, Bridge1) or two internal port, with relevant bridge, are active (PORT-A and PORT-B, Bridge 1 and Bridge 2). Fol-lowing parameters can be set:

• MAC Address –MAC address relevant to the Bridge

• Priority – Priority of the switch, from 0, high priority, to 15, low priority.

17.4 CONFIGURATION EXAMPLES

17.4.1 Local LAN1 - Remote LAN1

In this example the network on local LAN1 port is connected with the network at remote LAN1 port.

In LAN1 window, Filtering (802.1Q) card, in field Ingress Filtering Check select Disable 802.1Q, in fieldFrame Egress Mode select Unmodified.

Using LCT software, select Base Band, Line Side, LAN1 and PORT-A and perform, on local and on re-mote equipment, the setting represented in Fig.110 and in Fig.111.

LAN1 parameters Speed and Flow control are equal on local and on remote side.

150 ALS - MN.00164.E - 001

Fig.110 - LAN1 port configuration on local and on remote equipment

ALS - MN.00164.E - 001 151

Fig.111 - Internal port configuration on local and on remote equipment

17.4.2 Local LAN1 - Remote LAN1, Local LAN2 - Remote LAN2, Segregat-ed

In this example the Ethernet traffic on LAN1 is divided from traffic on LAN2 by means of different VLANsused for radio transport only.

Using LCT software, select Base Band, Line Side, LAN1 and PORT-A and perform, on local and on re-mote equipment, the following configuration:

• LAN1 parameters Speed and Flow control are equal on local and on remote side

• LAN2 parameters Speed and Flow control are equal on local and on remote side

• Disable all the output ports in LAN per port 802.1Q card (in LAN1 and in LAN2 card, on local andon remote side)

• Select Fallback in Ingress Filtering Check, Untagged in Frame Egress mode and set the default VLAN ID,4001 as VLAN id1, 4002 as VLAN id2, indifferent in PORT-A (card Filtering 802.1Q). Repeat thesame on the remote side.

• In Ethernet Switch select Virtual LAN Configuration and by means of Add command, add the twofollowing lines in Virtual Lan Configuration table (see Fig.112). Repeat the same on the remote side.

152 ALS - MN.00164.E - 001

Fig.112 - –VLAN table for transmission of two LANs segregated between them

17.5 LIM ETHERNET: GENERAL NOTES ON MANUAL OPERATIONS

In links with LIM Ethernet, in configurations with radio A and radio B concatenated together, in case ofmanual operations active on one of the two radio, the Controller performs actions in order to protect atleast part of the traffic.

A manual operation does not affect traffic if the branch, interested by operation, is in stand-by or protected(in Tx and/or in Rx), so capacity reduction will occur only if branch is active (in Tx and/or Rx).

The necessary forcing of Tx and/or Rx switches to protect traffic, even if reduced, must be per-formed by operator before manual operation itself.

In order to perform a traffic loop in configuration where radio A and radio B are concatenated together,loops to select are radio A baseband and radio B baseband. If these radios are in 1+1 configuration, thebranch active in Rx must be selected in radio A and in radio B.

ALS - MN.00164.E - 001 153

17.5.1 1+0 LINK

Tab.19 shows manual operations and relevant effects on traffic

Tab.19 - Manual operations and relevant effects on traffic in 1+0 link (ODU AS/ALS)

MANUAL OPERATION NOTES AND PREVENTIVE FORCING

Loop RF radio1A Traffic reduced: concatenation with radio B only

Loop RF radio1B Traffic reduced: concatenation with radio A only

Loop IF radio1A Traffic reduced: concatenation with radio B only

Loop IF radio1B Traffic reduced: concatenation with radio A only

Loop B B radio1A Traffic reduced: concatenation with radio B only

Loop B B radio1B Traffic reduced: concatenation with radio A only

Carrier Only radio1A Traffic reduction requested by remote due to Rx problems

Carrier Only radio1B Traffic reduction requested by remote due to Rx problems

Tx off radio1A Traffic reduction requested by remote due to Rx problems

Tx off radio1B Traffic reduction requested by remote due to Rx problems

RT PSU off radio1A Traffic reduction requested by local and remote due to Rx /Tx problems

RT PSU off radio1B Traffic reduction requested by local and remote due to Rx /Tx problems

154 ALS - MN.00164.E - 001

17.5.2 1+1 HOT STAND-BY (1 ANTENNA / SPACE DIVERSITY)

Manual operations, relevant effects on traffic in 1+1 Hot stand-by (1 antenna / space diversity) and pre-ventive actions are shown in Tab.20 (ODU ALS) and Tab.21 (ODU AS).

Tab.20 - Manual operations, relevant effects on traffic in 1+1 Hot stand-by (1 antenna / space diversity) and preventive actions (ODU ALS): problems in Rx/Tx occur if manual operation is

performed on the active branch

MANUAL OPERA-TION

Rx NOTES AND PREVENTIVE FORCING

Loop RF radio1A concatenation with radio B only

Loop RF radio2A concatenation with radio B only

Loop RF radio1B concatenation with radio A only

Loop RF radio2B concatenation with radio A only

Loop IF radio1A 1A concatenation with radio B only - Forcing: Tx -> 1A; Rx -> 1A

Loop IF radio1A 2A Forcing: Tx -> 1A; Rx -> 2A



Loop IF radio1B 1B concatenation with radio A only - Forcing: Tx -> 1B; Rx -> 1B

Loop IF radio1B 2B Forcing: Tx -> 1B; Rx -> 2B



Loop B B radio1A 1A concatenation with radio B only - Forcing: Tx -> 1A; Rx -> 1A

Loop B B radio1A 2A Forcing: Tx -> 1A; Rx -> 2A



Loop B B radio1B 1B concatenation with radio A only - Forcing: Tx -> 1B; Rx -> 1B

Loop B B radio1B 2B Forcing: Tx -> 1B; Rx -> 2B



Carrier Only radio1A Traffic reduction requested by remote in case of Rx problems


Carrier Only radio1B Traffic reduction requested by remote in case of Rx problems


Tx off radio1A Traffic reduction requested by remote in case of Rx problems


Tx off radio1B Traffic reduction requested by remote in case of Rx problems


RT PSU off radio1ATraffic reduction requested by local and remote in case of Rx/Tx

problems

RT PSU off radio2ATraffic reduction requested by local and remote in case of Rx /Tx

problems

RT PSU off radio1BTraffic reduction requested by local and remote in case of Rx/Tx

problems

RT PSU off radio2BTraffic reduction requested by local and remote in case of Rx /Tx

problems

ALS - MN.00164.E - 001 155

Tab.21 - Manual operations, relevant effects on traffic in 1+1 Hot stand-by (1 antenna / space diversity) and preventive actions (ODU AS): problems in Rx/Tx occur if manual operation is per-

formed on the active branch

MANUAL OPERA-TION

Rx NOTES AND PREVENTIVE FORCING

Loop RF radio1A 1A concatenation with radio B only - Forcing: Tx -> 1A; Rx -> 1A

Loop RF radio1A 2A Forcing: Tx -> 1A; Rx -> 2A

Loop RF radio2A 1A Forcing: Tx -> 2A; Rx -> 1A

Loop RF radio2A 2A concatenation with radio B only - Forcing: Tx -> 2A; Rx -> 2A

Loop RF radio1B 1B concatenation with radio A only - Forcing: Tx -> 1B; Rx -> 1B

Loop RF radio1B 2B Forcing: Tx -> 1B; Rx -> 2B

Loop RF radio2B 1B Forcing: Tx -> 2B; Rx -> 1B

Loop RF radio2B 2B concatenation with radio A only - Forcing: Tx -> 2B; Rx -> 2B








Loop IF radio2B 2B concatenation with radio A only - Forcing : Tx -> 2B; Rx -> 2B

Loop B B radio1A 1A concatenation with radio B only - Forcing : Tx -> 1A; Rx -> 1A
















RT PSU off radio1A Traffic reduction requested by local and remote in case of Rx/Tx problems

RT PSU off radio2A Traffic reduction requested by local and remote in case of Rx /Tx problems

RT PSU off radio1B Traffic reduction requested by local and remote in case of Rx/Tx problems

RT PSU off radio2B Traffic reduction requested by local and remote in case of Rx /Tx problems

156 ALS - MN.00164.E - 001

17.5.3 1+1 Frequency Div. (1 antenna / space diversity)

Manual operations, relevant effects on traffic in 1+1 Frequency Div. (1 antenna / space diversity) and pre-ventive actions are shown in Tab.22.

Tab.22 - Manual operations, relevant effects on traffic in 1+1 Hot stand-by (1 antenna/space diversity) and preventive actions: problems in Rx/Tx occur if manual operation is performed on

active branch

MAN. OPERATION Rx NOTES AND PREVENTIVE FORCING

Loop RF radio1A 1A concatenation with radio B only - Forcing: Rx -> 1A

Loop RF radio1A 2A Forcing: Rx -> 2A

Loop RF radio2A 1A Forcing: Rx -> 1A

Loop RF radio2A 2A concatenation with radio B only - Forcing: Rx -> 2A

Loop RF radio1B 1B concatenation with radio A only - Forcing: Rx -> 1B

Loop RF radio1B 2B Forcing: Rx -> 2B

Loop RF radio2B 1B Forcing: Rx -> 1B

Loop RF radio2B 2B concatenation with radio A only - Forcing: Rx -> 2B

Loop IF radio1A 1A concatenation with radio B only - Forcing: Rx -> 1A

Loop IF radio1A 2A Forcing: Rx -> 2A

Loop IF radio2A 1A Forcing: Rx -> 1A

Loop IF radio2A 2A concatenation with radio B only - Forcing: Rx -> 2A

Loop IF radio1B 1B concatenation with radio A only - Forcing: Rx -> 1B

Loop IF radio1B 2B Forcing: Rx -> 2B

Loop IF radio2B 1B Forcing: Rx -> 1B

Loop IF radio2B 2B concatenation with radio A only - Forcing : Rx -> 2B

Loop B B radio1A 1A concatenation with radio B only - Forcing : Rx -> 1A

Loop B B radio1A 2A Forcing: Rx -> 2A

Loop B B radio2A 1A Forcing: Rx -> 1A

Loop B B radio2A 2A concatenation with radio B only - Forcing: Rx -> 2A

Loop B B radio1B 1B concatenation with radio A only - Forcing: Rx -> 1B

Loop B B radio1B 2B Forcing: Rx -> 2B

Loop B B radio2B 1B Forcing: Rx -> 1B

Loop B B radio2B 2B concatenation with radio A only - Forcing: Rx -> 2B









RT PSU off radio1A Traffic reduction requested by local and remote in case of Rx/Tx problems

RT PSU off radio2A Traffic reduction requested by local and remote in case of Rx /Tx problems

RT PSU off radio1B Traffic reduction requested by local and remote in case of Rx/Tx problems

RT PSU off radio2B Traffic reduction requested by local and remote in case of Rx /Tx problems

ALS - MN.00164.E - 001 157

18 PERIODICAL CHECKS

18.1 GENERAL

Periodical checks are used to check correct operation of the radio equipment without the presence of anyalarm condition.

The SCT/LCT programs running on the PC are used for the purpose.

18.2 CHECKS TO BE CARRIED OUT

The following checks must be carried out:

• check of the transmitted power;

• check of the received field strength (the reading must match the value resulting from hop calcula-tions);

• check of the bit error ratio and the hop performances.

For checking procedures, please refer to SCT/LCT program and relevant help-on line.

158 ALS - MN.00164.E - 001

19 TROUBLESHOOTING

19.1 GENERAL

The equipment consists of the following replaceable parts:

• ALS SDH with IDU SDH compact

- IDU (ALS-C)

- ODU AS o ALS

• ALS SDH with IDU SDH modular (IDU ALS)

- LIM

- CONTROLLER

- RIM

- ODU.

Purpose of the troubleshooting is to pinpoint the faulty part and replace it with spare.

Warning: the replacement of the faulty CONTROLLER module with spare causes the spare CONTROLLERto be re-programmed.

19.2 TROUBLESHOOTING PROCEDURE

Troubleshooting procedure is used both with IDU SDH modular equipment and IDU SDH compact equip-ment. In case of IDU SDH compact equipment, replace the whole IDU if the troubleshooting detects a fail-ure on one of the following modules:

• LIM

• CONTROLLER

• RIM.

Troubleshooting starts as soon as one of the following alarm condition: alarm LED “ON” on the IDU frontpanel or alarm messages are displayed by managers SCT/LCT.

Two methods are used to troubleshoot the cause of fault:

• loop facilities

• alarm message processing using the manager SCT/LCT

19.2.1 Loop facilities

The equipment is provided with different loops with the aid to locate the faulty equipment and then thefaulty module the equipment consists of.

Warning: the majority of loops causes the traffic to be lost.

ALS - MN.00164.E - 001 159

The available loops are the following:

• local tributary loops: usually used to test the cables interfacing the equipment upstreams

• remote tributary loops: usually used to test the two direction link performance making use of anunused tributary (if available).

• baseband loop: it permits to test the LIM circuits

• IDU loop: it permits to test the complete IDU

• RF loop: it permits to test the complete radio terminal

19.2.2 Alarm messages processing

When an alarm condition occurs, the equipment generates a number of alarm messages that appear onthe SCT windows ie: log history area and equipment view current alarm.

Investigation on the alarm message meaning permits to troubleshoot the faulty module.

Alarm message organisation

The alarms (traps) are organized as alarm grouping relevant to a specific functions performed by the equip-ment.

The alarm grouping is available only in the view current alarm submenu.

What follows is the list of the alarm grouping:

• COMMON - alarms which are not related to a specific part of the equipment but relevant to the linkas DCC radio link alarm or link telemetry fail. If these alarms are ON the link is lost. Investigationmust be made on a possible bad propagation or equipment failure. See the condition of the othersalarm grouping.

• LIM - This grouping may generate alarms for the following causes:

- external fault: tributary signal loss

- LIM failure: i.e. loss of the power supply inside the module or clock loss

- alarm that can be propagated by RIM or ODU modules as baseband Rx alarm. The Basebandloop permits to discover if the cause of this alarm activation is external or internal to the LIM.If yes the module must be replaced.

• RIM - This grouping may generate alarms for the following causes:

- external fault: demodulator fail alarm and local ODU alarm are generated when the ODU be-comes faulty.

- RIM failure - power supply alarm along with cable short/open alarms or modulator/demodulatoralarms are activated.

• RT - This grouping may generate alarms for the following causes:

- external fault: Rx power low alarm is generated given by a bad propagation or by a faulty remoteterminal.

- ODU failure: PSU fail alarm or RF VCO alarm or RT IF alarm is activated. If this happens, replacethe ODU.

• UNIT - This grouping generates alarms when one of the units, the equipment consists of, is faultyor does not respond to the controller polling. Replace the faulty unit.

• CONTROLLER - There is not an alarm message relevant to a controller module failure. An alarm con-dition causes Led IDU to steady lights up.Warning: The replacement of controller module requires the spare to be realigned.

160 ALS - MN.00164.E - 001

19.3 FAULT MANAGEMENT PROCEDURE FOR FREQUENCY REUSE SYSTEMS WITH XPIC

The Fault Management Procedure (FMP) is used into 1+0 systems with a vertical and an horizontal carriergiving a total traffic of 2xSTM-1 or 4xSTM-1.

Purpose of FMP is to identify a malfunction caused by equipment failure and protect radio path horizontalor vertical where there is no problem.

FMP will distinguish between alarm coming from external causes (e.g. fading) and alarms coming from adefect into equipment.

Tx Power Control can be in Automatic or Manual mode. Low ATPC threshold shall be 15 dB higher than BER= 10-6 Prx level. See chapter "System Characteristics ".

FMP is used into 1+0 systems in case of a single hardware failure.

In 1+1 systems a single hardware failure is protected by doubled configuration structure.

FMP switches off automatically the alarmed path protecting the not alarmed path.

Once the decision is taken it is permanent and only an operator with SCT/LCT program or NMSUX can resetthe status.

19.3.1 Manual operations activated by FMP

FMP can activate the following manual operations:

• remote Tx off

• local Xpic disable

• disable FMP.

ALS - MN.00164.E - 001 161

20 EQUIPMENT CONFIGURATION UPLOAD/SAVE/DOWNLOAD. PARAMETER MODIFICATION AND CREATION OF VIRTUAL CONFIGURATIONS

20.1 SCOPE

This chapter describes the procedure to create configuration files.

Equipment configuration files must be used in case of replacing a faulty CONTROLLER module with thespare. To the purpose it is necessary to upload, from each equipment the network consists of, equipmentconfigurations and save them on three configuration files. It is advisable to do it upon the first installation.Configuration file download on the spare CONTROLLER permits to restore previous operating condition. Itis also possible to create virtual configuration without being connected to equipment.

20.2 PROCEDURE

To configure the spare CONTROLLER the following must be uploaded/saved on the file/downloaded:

• General equipment configuration

• Addresses and routing table

• Remote element table

To do it, run the SCT/LCT program (see relevant documentation available on line) until "Subnetwork CraftTerminal" application window is displayed.

20.2.1 General equipment configuration

Upload and save

1 Select Open Configuration Template from Tools menu following this path: Tools Æ EquipmentConfiguration Wizard Æ File Æ Open Configuration Template.The system will show Template Selection window.

2 Choose from Template Selection window the type of equipment and version (for instance radio PDHAL: 2x2, 4x2, 8x2, 16x2 Mbit/s) from which you want to make the upload.

3 Press OK.The system will display the Configuration Wizard window referring to the selected type of equipmentand version (example: radio ALS: STM-1)

4 Press Upload push button and select Get Current Type Configuration from Equipment.

The system will display the Upload Configuration File window. The window will show the equipmentlist.

162 ALS - MN.00164.E - 001

5 Select the equipment you wish to upload a configuration file from (normally the local equipment)by activating the relevant box.

6 Press OK.

The system displays the Communication Status window where is pointed out:

- the operation status: upload in progress/complete.

- errors area: where error messages relevant to possible abort of the operation are displayed.

At the end of the operation by pressing OK, the system displays, the uploaded equipment param-eters present into the Configuration Wizard window.

7 Save the uploaded configuration into a file by selecting Save File As command from File → Save→ Save File As.

The system will display Save This Config. File.

Type the file name into the proper box (with "cfg" extension) and set the path to be used to savethe file.

8 Press Save push button to finish.

Download

After having installed the spare LIM proceed as follows:

1 Select Open File from Tools menu following this path: Tools menu → Equipment ConfigurationWizard → File → Open → Open File.

The system will display Select a Config. File window.

2 Select the wanted file and open it by pushing Open push button. The system will display the filecontent.

3 Press Download push button and select Configure Equipment as Current File.

4 Activate the box relevant to the equipment you wish to download configuration file to (normally thelocal equipment) and select Configure Equipment as Current File.

5 Press OK.

The system displays the Communication Status window where is pointed out:

- the operation status: upload in progress/completed

- errors area: where error messages relevant to possible abort of operation are displayed.

6 Press OK to finish.

20.2.2 Addresses and routing table

Upload and save

1 Select Open Address Configuration Template from Tools menu following this path: Tools menu→ Equipment Configuration Wizard → File → Open → Open Address Configuration Template.The system will show the mask of the Address Configuration Template.

2 Press Upload push button and select Get Current Type Configuration from Equipment.The system will display the Upload Configuration File window.

3 Select the equipment you wish to upload a configuration from (normally the local equipment).

4 Press OK.The system displays the Communication Status window where is pointed out:

- the operation status: upload in progress

- errors area: where error messages relevant to possible abort of the operation are displayed.

ALS - MN.00164.E - 001 163

At the end of the operation, the system displays, the equipment parameter present into the Con-figuration Wizard window.

5 Save the uploaded configuration into a file by selecting Save File As command from File → Save→ Save File As

The system will display the Save This Config. File window. Into the proper boxes type the file name(with "cfg" extension) and set the path to be used to save the file.

6 Press Save push button to finish.

Download

1 Select Open File command from Tools menu following this path: Tools → Equipment ConfigurationWizard → File → Open → Open File.The system will display Select a Config. File window.

2 Select the wanted file and open it by pushing Open push button. The system will display the pa-rameters contained into the file.

3 Press Download push button and select Configure Equipment as Current File.

4 Activate the box relevant to the equipment you wish to download configuration file to (normally thelocal equipment).

5 Press OK.

6 The system will display Download Type Selection window. Activate boxes IP port addresses config-uration e Routing table. If OSPF facility is enabled, you can only select Standard (IP/Communi-cation/OSPF) Settings.

7 Press OK.The system will show a warning indicating the possibility to proceed the download or not.

8 Press OK.The system will show the Download in progress.

9 At the end of the download will be shown the file content.

20.2.3 Remote Element Table

Upload and save

1 Select window Subnetwork Configuration Wizard from menu Tools.

2 Select equipment Local from Actual Configuration Area and then press Retrieve. In New configu-ration area is shown the list of remote equipment included the local.

3 Press Save to file. The system will show window Save remote element configuration file.

4 Save the file with Rel extension and then press Save to finish.

Download

1 Select Subnetwork Configuration Wizard from menu Tool.

2 Press Read from file and then select the desired file (with Rel extension).

3 Press Open push button and then the system will show the file content into the New ConfigurationArea.

4 Select into the Actual configuration area the equipment you desire to download, the list of the re-mote element included the local.

5 Press Send to send the list.

164 ALS - MN.00164.E - 001

21 BACK UP FULL EQUIPMENT CONFIGURATION WITHOUT POSSIBILITY OF MODIFYING THE PA-RAMETERS

21.1 SCOPE

This chapter describes the procedure to back up the full equipment configuration.

This permits to recover the original equipment configuration in case of faulty CONTROLLER module replace-ment with spare.

21.2 CONFIGURATION UPLOAD

Foreword: it is advisable to upload the configuration during the first installation. Proceed as follows:

1 Select “Equipment Configuration Wizard” from menu "Tools"; "Equipment Configuration Wiz-ard" window will be displayed.

2 Select “Upload” and then “Backup Full Equipment Configuration”; “Template Selection” win-dow will be displayed.

3 Select the correct equipment template (in case of uncorrected choice the backup will be aborted).

4 Press OK and then select the equipment to be uploaded from “Upload Configuration File” window.

5 Press OK and then edit the file name from “Save backup as” window.

6 Press Save; “Equipment Configuration Wizard: Complete Backup” window will appear.

The window shows dynamically the backup procedure. If everything is OK, at the end of the uploadwill appear the word “done” showing the procedure success.


21.3 CONFIGURATION DOWNLOAD

Once the spare LIM has been installed proceed as follows:

1 Select “Equipment Configuration Wizard” from menu “Tools”. “Equipment Configuration Wizard”window will be displayed.

2 Select “Download” and than “Restore Full Equipment Configuration” from Equipment Config-uration Wizard. “Select Backup File” window will be displayed.

ALS - MN.00164.E - 001 165

3 Select the wanted backup file with extension .bku and then press Open. “Download ConfigurationFile” window will be displayed.

4 Select the equipment to download and then press OK; “Equipment Configuration Wizard: Completerestore” window will be displayed. This window shows dynamically the download operation. Theword “done” indicates that download has been successfully.


Warning: In case of EOC alarm proceed to restart the equipment.

166 ALS - MN.00164.E - 001

22 ALS - FIRMWARE UPDATE

22.1 INTRODUCTION

This chapter contains the description of the procedure to update ALS radio with SDH firmware. Firmware update IS TRAFFIC AFFECTING: this procedure minimize the duration of traffic interruptions.This procedure is applicable to each equipment of the network: it is presented as a procedure applicableusing the SCT/LCT, both from a local connection or from a remote one, but an equivalent procedure maybe followed from the NMS5UX management system.

22.2 SYSTEM VERSION OF FIRMWARE

Firmware software modules are described by an object called System version.

The system version is made up by a code and a version: SRALSOxy version 0x.0y.0z where X and y aredigits describing the release and the last z is the digit regarding the version of the release.

Few examples are:

SRALSO11 version 01.01.01

SRALSO12 version 01.02.03

Tab.23 – System version composition

SRALSOxy (0x.0y.0z) Version ALS radio link

E82079 0a.0b.0c Equipment controller boot (C12080)

N90485 0a.0b.0c Equipment controller appl.

N904830a.0b.0c Fpga_Base_Band (LIM Ed. 01)

0a.0b.0c Conf_Base_Band (LIM Ed. 01)

N905080a.0b.0c Fpga_Base_Band (LIM Ed. 02)

0a.0b.0c Conf_Base_Band (LIM Ed. 02)

N904860a.0b.0c Fpga_Modem (RIM Ed. 01)

0a.0b.0c Conf_Modem (RIM Ed. 01)

N905300a.0b.0c Fpga_Modem (RIM Ed. 02)

0a.0b.0c Conf_Modem (RIM Ed. 02)

N905330a.0b.0c Fpga_Modem (RIM XPIC)

0a.0b.0c Conf_Modem (RIM XPIC)

E82076 0a.0b.0c Radio boot

N92487 0a.0b.0c Radio appl.

N90489 0a.0b.0c Radio Fpga (ALS6, ALS18, ALS23)

N90543 0a.0b.0c Radio Fpga (ALS13)

ALS - MN.00164.E - 001 167

22.3 PRELIMINARY CHECKS

Once received from SIAE a new system version, always check inside the "release notes" if the new systemversion can be applied on the working one directly or if an intermediate step should be performed before.

Before starting the upgrade procedure be sure of the status of the equipment to be downloaded. In theSCT window “Current alarms” verify the absence of internal alarms, i.e. alarms related to:

• hardware module failures

• software module failure

• hardware or software mismatch

• units not responding

If the download is performed on a terminal connected to the SCT via the PPP radio, verify also the absenceof any alarm related to the radio connection, i.e.:

• RX power low

• TX power low

• HBER, LBER or EWL.

The presence of any other kind of alarm must in any case be justified and its cause known before proceed-ing with the download procedure.

Upgrade should not be performed in presence of alarms.

In any case, if any alarm is present, save a Fault Report (using the SCT menu Equipment/Reports/FaultReport) as a reference, to verify after the upgrade that no further alarms appeared.

To assure the possibility to perform a downgrade from the new version back to the old one, you must saveall the configuration data (using the SCT configuration wizard) before starting this update.

Note: Saving the configuration before proceeding with the download of a new version is always recom-mended, even if downgrade is not foreseen.

22.4 FIRMWARE UPGRADE

A list of necessary steps is provided.

Please, be sure to have read previous chapters before performing the upgrade.

Note: the order of the paragraphs corresponds to the order to be followed in the upgrade procedure toguarantee the minimum impact on the traffic and the proper behaviour of the equipment.

22.4.1 N90485 - Equipment controller application download

In SCT window Download setup select in Download Type field Forced. Locate the file als_all_osi.dwlon your PC (in Fig.113 you can see an example of Download Setup window, please note that the Down-load file path in the example may not correspond to the one you have).

168 ALS - MN.00164.E - 001

Fig.113 – Download setup window for equipment controller application download

Press Start to execute the download.Confirm the command clicking on Procedure to download? button (see Fig.114) before expiration time.

Fig.114 – Confirm of the operation

The Downloading window (see Fig.115) appears with download status.

Fig.115 – Download progress

ALS - MN.00164.E - 001 169

During download, the relevant Status message is present in the log window of the SCT.

During the download no traffic interruption and no alarm should appear.

During the download the Downloading Warning is present in the summary panel.

After the download, the Software Download Completed message appears in the log window of SCT andnew SW release appears in the software unit table of Equipment Software Version window.

Important note: if Software Download Aborted message appears in log window of SCT or if SoftwareDownload Completed message does not appear, the download operation has not been properly per-formed, hence the bench switch must not be done.

After the download, click on Bench Switch button to switch on the memory bench with the new firmwareas in Fig.116.

Fig.116 – Equipment software version window

22.4.2 N90487 - Radio application download (first branch)

Warning: This download procedure IS TRAFFIC AFFECTING, if performed on the working radio branch. In1+1 system, to minimize the impact on traffic the download has to be performed on the stand-by branch.

In this procedure we assume that initially the working radio branch is branch 1.

If the initially working radio branch is branch 2, just reverse the instructions between branch1 and branch2.

In Download setup window select download type Only difference or not present/peripheral.

Locate the file n90487_0a0b0c -br2A.dwl on your PC (similar to Fig.113).

Please note the actual file name has the actual firmware module version (e.g. 01.01.00) insteadof 0a0b0c.

170 ALS - MN.00164.E - 001

In a 1+1 equipment this file refers to radio branch 2. Press Start to execute the download.

Confirm the command clicking on Proceed to download? button (see Fig.114) before expiration time.

A window will appear, giving the status of the download, similarly to Fig.115.




This upgrade procedure IS NOT TRAFFIC AFFECTING only if performed on the stand-by branch.

After the download, the Software Download Completed message appears in log window of SCT and newSW release appears in the software unit table of Equipment Software Version window (see Fig.116).

22.4.3 N90489 (ALS6U-ALS18-ALS23)/N90543 (ALS13) - Radio FPGA download (first branch)

Warning: This download procedure IS TRAFFIC AFFECTING, if performed on the working radio branch.

In 1+1 system, to minimize the impact on traffic the download has to be performed on the stand-bybranch. In this procedure we assume that initially the working radio branch is branch 1.

If the initially working radio branch is branch 2, just reverse the instructions between branch1 and branch2.

In SCT window Download setup (similar to Fig.113) select download type Only difference or notpresent/peripheral.

Locate the file n90489_0a0b0c_br2A.dwl (for ALS6U, ALS18 or ALS23) or n90543_0a0b0c_br2A.dwl(for ALS13) on your PC.

Press Start to execute the download.

Confirm the command clicking on the Proceed to download? button (as in Fig.114) before expirationtime.






22.4.4 N90486 or N90530 - Modem download (first branch)

Warning: this download procedure IS TRAFFIC AFFECTING, if performed on the working radio branch.

In 1+1 system, to minimize the impact on traffic the download has to be performed on the stand-bybranch.

In this procedure we assume that initially the working radio branch is branch 1.

If the initially working radio branch is branch 2, just reverse the instructions between branch 1 and branch2.

In the SCT window Download setup (similar to Fig.113) select download type Only difference or notpresent/peripheral. Locate the file n90486_rim2a.dwl on your PC.

User must always select n90486_rim2a.dwl; the controller will manage the download of this file or ofthe file n90530_*** depending on the version of the controller itself.


ALS - MN.00164.E - 001 171







22.4.5 Radio branch switch (1+1 systems only)

Warning: This part of the procedure IS TRAFFIC AFFECTING: the average impact on the traffic is 1 ES(Errored Second) and 1 SES (Severely Errored Second).

OPen ALS LCT, select Radio Switch page and set Branch-2 for both Rx preferential and Tx Preferentialfields (see Fig.117).

Fig.117 – Radio switch window

Press Apply to perform the new setting.

Confirm the command clicking on the Confirm changes? button (as in Fig.114) before expiration time.

As a consequence of the Tx switch, some Rx alarms will appear on the remote terminal, on both branches.

172 ALS - MN.00164.E - 001

22.4.6 N90487 - Radio application download - second branch (1+1 sys-tem only)

Warning: this download procedure IS TRAFFIC AFFECTING, if performed on the working radio branch.



In Download setup window select download type Only difference or not present/peripheral.

Locate the file n90487_0a0b0c_br1A.dwl on your PC (similar to Fig.113).

In a 1+1 equipment this file refer to radio branch 1. Press Start to execute the download.

Confirm the command clicking on Proceed to download? button (see Fig.114) before expiration time.






22.4.7 N90489 (ALS6U-ALS18-ALS23)/N90543 (ALS13) - Radio FPGA download - second branch (1+1 system only)





Locate the file n90489_0a0b0c_br1A.dwl (for ALS6U, ALS18 or ALS23) or n90543_0a0b0c_br1A.dwl(for ALS13) on your PC.


Confirm the command clicking on the Proceed to download? button (as in Fig.114) before expirationtime. A window will appear, giving the status of the download, similarly to Fig.115.





22.4.8 N90486 or N90530 - Modem download - second branch (1+1 sys-tem only)



ALS - MN.00164.E - 001 173



Locate the file n90486_rim1a.dwl on your PC.








22.4.9 N90486 or N90508 - Baseband download

Warning: This part of the procedure IS TRAFFIC AFFECTING: the average impact on the traffic is 4 ES(Errored Seconds) and 4 SES (Severely Errored Seconds).


Locate the file n90483.dwl on your PC.

In a 1+1 equipment this file refer to radio branch 1.




This upgrade procedure IS TRAFFIC AFFECTING (about 4 ES and 4 SES has been observed).


22.5 FINAL CHECK

When the upgrade procedure is finished, verify the status of the equipment by opening the SCT Currentalarms window and verifying the absence of alarms.

If before starting the upgrade procedure some alarms were present, compare Current alarms list with thepreviously saved one.

In case of new alarms, verify the possible cause and check the equipment configuration regarding on pre-viously saved Fault Report.

174 ALS - MN.00164.E - 001

22.5.1 Downgrade procedure

If any unresolvable problem occurs while running the newly downloaded version, a downgrade is still pos-sible. This chapter explains how to perform it.

If upgrade procedure has been performed step by step, the link works on branch 2, in Tx and in Rx. Down-grade operation can be performed on branch 1 (in stand-by).

Note: a complete downgrade may not br necessary to recover the full functionalities of the equipment. Inthis case you can perform only some of the following steps.

Equipment controller

The downgrade of the Equipment Controller firmware is easily done by a simple bench switch (the previ-ously running firmware being still present in the stand-by memory bench.

Radio application (first radio branch)

To perform the downgrade of the radio application please follow the procedure of paragraph 22.4.2, se-lecting the file n90487_br1.dwl from the relevant system version.

Radio FPGA (first radio branch)

To perform the downgrade of the radio FPGA please follow the procedure of paragraph 22.4.3 selecting thefile n90489_br1.dwl from the relevant system version.

Modem download (first radio branch)

To perform the downgrade of the modem firmware please follow the procedure of paragraph 22.4.4, se-lecting the file n90486_br1.dwl from the relevant version.

Radio application (second radio branch)

To perform the downgrade of the radio application please follow the procedure of paragraph 22.4.6, se-lecting the file n90487_br2.dwl from the relevant system version.

Radio FPGA (second radio branch)

To perform the downgrade of the radio FPGA please follow the procedure of paragraph 22.4.7, selectingthe file n90489_br2.dwl from the relevant system version.

Modem download (second radio branch)

To perform the downgrade of the modem firmware please follow the procedure of paragraph 22.4.8, se-lecting the file n90486_br2.dwl from the relevant system version.

Baseband download

To perform the downgrade of the modem firmware please follow the procedure of paragraph 22.4.9, se-lecting the file n90483.dwl from the relevant system version.

ALS - MN.00164.E - 001 175

Section 4.CHARACTERISTICS AND DE-SCRIPTIONS SPECIFICATION

23 SYSTEM CHARACTERISTICS

23.1 GENERAL

In this chapter:

• system characteristics, relevant to the whole radio equipment

In the following chapters:

• IDU characteristics

• ODU characteristics: the following characteristics, relevant to the radio frequency, are included inattached manuals:

- operating band and subbands

- band number and width of RF filter

- subdivision of the operating band in different transmitters

- TX guaranteed characteristics

- Rx guaranteed characteristics

- consumption and power supply characteristics

- losses in branching and flange typology towards antenna or wave guide.

• description of IDU and its functional modules

• description of ODU and its functional modules.

176 ALS - MN.00164.E - 001

23.2 SYSTEM CHARACTERISTICS

- Configuration 5 1+0/1+1 Hot Stand-by 1 antenna or 2 antennas/1+1 frequency diversity/2+0

- Modulation 32/128QAM

- Demodulation coherent

- Possible channel schemes (see Fig.118) adjacent channel polarised (ACAP)adjacent channel co-polarised (ACCP) co-channel dual polarisation (CCDP)

- Transmission capacity

- Main signal STM-12xSTM-14xSTM-1 6

- Service channel up to 2x2 Mbit/s way side 1x64 kbit/s, V11 contradirectional

- Interfaces

- Line interfaces STM-1 electrical ITU-T G.703STM-1 optical I1/S.1.1/L1.1 as per ITU-T G.95763x2 Mbit/s G.703 6

Ethernet IEEE 802.3 10/100BaseT, 100BaseFx, 6

1000BaseSx or Lx 6

- STM-1 tributary port impedance 75 Ohm micro coaxial

- Impedance and 2 Mbit/s trib. port connectors 120 Ohm balanced type D 25 pins

Switching protection 6

- Switching configuration 1+1 Hot Stand-by or 1+1 frequency diversity

- Tx switching outage time ≤ 180 ms

- Rx switching type hitless

- Static delay recovery ± 32 bit

- Dynamic delay recovery ± 16 bit

Frequency reuse with XPIC 6

- Internal C/I (128 QAM) 1 dB degradation for an internal C/I ≥ 17 dB

- Internal C/I (32 QAM) 1 dB degradation for an internal C/I ≥ 14 dB

Performance monitoring

- G.828 counters ES, SES, SEP, BBE, UAS

- Transmitter and receiver power counters

- Received Level and Transmitted Level Threshold Seconds- Number of seconds during whom the re-ceived (transmitted power) is below (above) a predefined threshold "n". The number of thresholdis 4. The operator can set the threshold value.

5 SDH IDU compact is only 1+0

6 only for SDH IDU modular

ALS - MN.00164.E - 001 177

- Received Level and Transmitted Level Tide Mark - The Received (Transmitted) Level Tide Mark is amechanism that records the maximum and the minimum value reached by RL (TL) during a meas-urement period.

Environmental conditions

- Temperature range ETSI EN 300-019

- IDU -5°C to +45°C

- ODU -33°C to +50°C

- Relative humidity 93% up to 30°C

- ODU Weather proofing as per Recc. IP65

- EMC (Electromagnetic compatibility) ETS 300-489-4

Dimensions

- IDU 1U mod./compact (lxhxp) 480x45x260 mm

- IDU 2U modular (lxhxp) 480x90x260 mm

- ODU AS 1+0 (lxhxp) 254x254x121 mm

- ODU AS 1+1 (lxhxp) 358x254x296 mm

- ODU ALS 1+0 (lxhxp) 165x400x190 mm

- ODU ALS 1+1 (lxhxp) 316x400x229 mm

Weights of ODU

- ODU AS 1+0 5.5 kg.

- ODU AS 1+1 15 kg.

- ODU ALS 1+0 9 kg.

- ODU ALS 1+1 19 kg.

IDU/ODU AS connection

- Nominal impedance 50 Ohm

- Coaxial cable 1 cable for 1+0 configuration2 cables for 1+1 configuration

- Cable attenuation <30 dB for 330 MHz

- Cable return loss better than 22 dB for 330 MHz

- Cable max. length <300 m (1/4” Cellflex cable)

IDU/ODU ALS connection

- Nominal impedance 50 Ohm

- Coaxial cable 1 cable for 1+0 configuration2 cables for 1+1 configuration

- Cable attenuation <30 dB for 330 MHz

- Cable return loss min 22 dB from 100 to 400 MHz

- Total cable resistance 1,9 Ohm

- Cable max length see Tab.24

178 ALS - MN.00164.E - 001

Tab.24 – Cable examples

Fig.118 – Example of channel arrangements on the same route

Tx and Rx switches in 1+1 system

Two different configurations are available for ALS 1+1 radio equipment:

• hot stand-by - the controller, depending on precise criteria, manages Rx (hitless) and Tx switches

• frequency diversity - the controller manages only Rx switch (hitless) because both radio send con-temporarly.

Criteria used for switches are listed in Tab.25 and Tab.26.

Tab.25 - Tx switch

SIAE cable codeMax cable length

K09212A K09259 K09217A K09202

SDH ALS 18-38 300 m 300 m 300 m 550 m

SDH ALS 6-15 200 m 210 m 220 m 550 m

Priority Level Alarm

High

Low

1 RIM PSU alarm

2 Manual forcing

3 Cable short alarm

3 Cable open alarm

3 Modulator failure alarm

3 ODU unit failure alarm

3 VCO failure alarm

3 IF unit alarm

3 Tx power low alarm

4Demand from remote (both remote re-

ceivers in HBER)

5 Revertive Tx

ACCP

V or H

CCDP

V

H

ACAP

V

H

ALS - MN.00164.E - 001 179

Tab.26 - Rx switch

Priority Level Alarm

High

Low

1 RIM PSU alarm

2 Manual forcing

3 Cable short alarm

3 Cable open alarm

3 ODU unit failure alarm

3 VCO failure alarm

3 IF unit alarm

3 Demodulator failure alarm

3 BER

4 Early warning

5 Rx Power low alarm

6 CRC pulse

7 Revertive Rx

180 ALS - MN.00164.E - 001

24 CHARACTERISTICS OF THE IDU

24.1 GENERAL

The following IDU characteristics are guaranteed for the temperature range from -5°C to +45° C and arethe same for IDU ALS and ALS-C, if not differently specified.

24.2 STM-1 ELECTRICAL INTERFACE

Input side

- Bit rate 155520 kbit/s ±20 ppm

- Line code CMI

- Rated impedance 75 ohm

- Rated level 1 Vpp ± 0.1 V

- Return Loss ≥15 dB from 8 MHz to 240 MHz

- Max. attenuation of the input cable 12.7 dB at 78 MHz ( law)

Output side

- Bit rate 155520 kbit/s ±4,6 ppm

- Rated level 1 Vpp ±0.1 V

- Pulsa shape see mask of Figures 24 and 25 of ITU-T Rec. G.703

24.3 STM-1 OPTICAL INTERFACE

The optical interface can be specialized for different applications, by simply equipping the STM-1 opticalinterface with the appropriate pluggable transceiver (with LC optical connectors). Information about thepresence/absence and type of transceiver is transferred to the main controller. The characteristics of allthe possible optical interfaces are summarized in the Tab.27- Possible optical interfaces:

f

ALS - MN.00164.E - 001 181

Tab.27 - Possible optical interfaces

The LIM is provided with Automatic Laser Shutdown functionality as prescribed by ITU-T G.664 Recom-mendation.

24.4 2 Mbit/s WAYSIDE INTERFACE

Input side

- Bit ate 2048 kbit/s ±50 ppm

- Line code HDB3

- Rated impedance 120 Ohm

- Rated level 2.37 Vp/75 Ohm or 3 Vp/120 Ohm

- Return loss 12 dB from 57 kHz to 102 kHz18 dB from 102 kHz to 2048 kHz14 dB from 2048 kHz to 3072 kHz

- Max attenuation of the input cable 6 dB according to law

- Accepted jitter see mask in Table 2, ITU-T Rec. G.823

- Transfer function see mask in Figure 1, ITU-T Rec. G.742

- Output jitter Rec. G.783 (Table 10.1 (4/97))

Output side

- Bit rate 2048 kbit/s ±50 ppm



- Pulsa shape see mask in Figure 15, ITU-T Rec. G.703

24.5 2 Mbit/s INTERFACE (E1), LIM 2xSTM-1/LIM 4xSTM-1

Input side

- Bit rate 2048 kbit/s ± 50 ppm

- Line code HDB3

- Rated impedance 75 ohm and 120 ohm, depending on used pin

Interf. Ref.Launched

power (dBm)

Minimum sensitivity

(dBm)

Operating wavelength

Transceiver FiberDistance

(km)

L-1.2 G.957 0 ... -5 -34 1480-1580 Laser Single-Mode Up to 80

L-1.1 G.957 0 ... -5 -34 1263-1360 Laser Single-Mode Up to 40

S-1.1 G.957 -8 ...-15 -28 1263-1360 Laser Single-Mode Up to 15

I-1 ANSI -14 ... -20 -28 1263-1360 Led MultiMode Up to 2

f

182 ALS - MN.00164.E - 001


- Return loss 12 dB from 57 kHz to 102 kHz18 dB from 102 kHz to 2048 kHz14 dB from 2048 kHz to 3072 kHz

- Max attenuation of the input cable 6 dB according to trend

- Accepted jitter see mask in Table 2, CCITT Rec. G.823

- Transfer function see mask in Figure 1, CCITT Rec. G742

- Output jitter Rec. G.783 (Table 10.1 (4/97))

Output side

- Bit rate 2048 kbit/s ± 50 ppm

- Rated impedance 75 Ohm or 120 Ohm


- Pulse shape see mask in Figure 15, CCITT Rec. G.703

24.6 ETHERNET INTERFACE AND SWITCH CHARACTERISTICS

- Bit rate 100 Mbit/s or 1 Gbit/s, LAN, 10 Mbit/s or 100 Mbit/s, LAN2 and LAN3

- WAN throughput 580 Mbit/s max

- Frame GFP

- Concatenation proprietary

- Bridge loop avoidance Rapid STP

- Optical user interface 100BaseFx or 1000BaseSx or 1000BaseLx

- Optical connector LC

- Electrical user interface 10BaseT or 100BaseT

f

ALS - MN.00164.E - 001 183

Switch characteristics

See Tab.28.

Tab.28 - Switch characteristics

100BaseFx optical interface characteristics

- Fibre type Multimode 50/125 µm or 62.5/125 µm

- Transceiver type Pluggable

- Connector type LC

- Operating distance up to 2 km

- Optical center wavelength 1310 nm

- Optical transmit power –14 ÷ –22 dBm

- Receive sensitivity –29 dBm

- Average receive power max –14 dBm

- Link power budget 7 dB

- Compliance 100BaseFx as for IEEE 802.3

1000BaseSx optical interface characteristics

- Fibre type Multimode 50/125 µm or 62.5/125 µm


- Connector type LC

- Operating distance up to 550 m (50/125 µm) or up to 300 m (62.5/125 µm)


Parameter Value Notes

User ports (external) 3 2x10/100 + 1x100/1000

WAN ports (internal) 3 Up to 580 Mbit/s

ModeHalf/full duplex

Full duplexFor 10/100 electrical

Fixed for 100/1000 optical

Address learning capacity 8K Globally for the switch

MAC aging time 0÷1 hour 15 sec steps software configurable

802.1Q VLANs Up to 4095 Software configurable

Port based VLAN Yes/Not Software configurable

Packet buffer memory 1 Mbit Globally for the switch

Max frame size 1632 BytesSoftware (standard or extended)

Jumbo per LAN1

Ethernet output queue 4 Fixed

Weight queues Strictly/weighted Software configurable

QoS None/802.1p/TOS–DSCP Software configurable

Layer 2 flow control Yes/Not Software configurable

MDI/MDX (electrical) Yes/Not Software configurable

184 ALS - MN.00164.E - 001

- Optical transmit power –2 ÷ –9.5 dBm


- Average receive power max 0 dBm

- Link power budget 7.5 dB

- Compliance 1000BaseSx as for IEEE 802.3z

1000BaseLx optical interface characteristics

- Fibre type Singlemode 9/125 µm


- Connector type LC

- Operating distance up to 10 km


- Optical transmit power –3 ÷ –9.5 dBm


- Average receive power max –3 dBm

- Link power budget 9.5 dB

- Compliance 1000BaseLx as for IEEE 802.3z

24.7 64 kbit/s CONTRA-DIRECTIONAL INTERFACE V.11

- Tolerance ±100 ppm

- Equipment side contra-directional

- Coding clock and data on independent wire

- Electrical interface see Rec. ITU-T V.11

24.8 ALARM INTERFACE

User output

- Relay contacts normally open (NO) or normally closed (NC)

- Open contacts R min. 100 MOhm at 500 Vdc

- Closed contacts R max. 0.5 Ohm

- Switching voltage Vmax 100 V

- Switching voltage Imax 1 A

User input

- Equivalent circuit recognized as a closed contact 200 Ohm resist. (max) referred to -6 V (min)

- Equivalent circuit recognized as a open contact 60 kOhm (min) referred to +4 V (max)

ALS - MN.00164.E - 001 185

24.9 NETWORK MANAGEMENT INTERFACE

AUI interface 6

- Connector 15 pin SUB–D

- Connection to LAN with a branching cable and a transceiver tothe Ethernet Thick coaxial cable

- Protocol TCP/IP and IPoverOSI

RJ45 interface

- LAN type Ethernet Twisted Pair 802.3 10BaseT

- Connector RJ45

- Connection to LAN direct with a CAT5 Twisted Pair

- Protocol TCP/IP or IPoverOSI

BNC interface 6

- LAN type Ethernet thinnet 802.3 10Base2

- Connector BNC

- Connection to LAN RG58 coax. cable 50 Ohm

- Protocol TCP/IP or IPoverOSI

RS232 interface

- Electrical interface V.28

- Connector 9 pin SUB-D female

- Asynchronous baud rate 9600, 19200, 38400, 57600

- Protocol PPP

USB LCT interface

- Version 1.1

- Connector USB (B) female

- Speed rate 12 Mbit/s

- Protocol PPP

24.10 MODULATOR/DEMODULATOR

- Carrier modulating frequency

- Tx side 330 MHz

- Rx side 140 MHz

- Type of modulation 32QAM/128QAM

186 ALS - MN.00164.E - 001

- Type of coding BCM (Block Coded Modulation)

- Modulating signal gross bit rate 169036.846 kbit/s (STM-1)338073.692 kbit/s (2xSTM-1)

- Spectrum shaping raised cosine (roll-off = 0.45 for 32QAM; 0.26 or 0.35 for 128QAM)

- Demodulation coherent

- Baseband adaptive equalizer 21 taps

- Coding gain (asymptotic) 11 dB

24.11 CABLE INTERFACE

- Interconnection with the ODU unit single coaxial cable for both Tx and Rx

- Cable length see chapter “23 SYSTEM CHARACTERISTICS”


- Signal running along the cable

- Tx nominal frequency 330 MHz

- Rx nominal frequency 140 MHz

- Transceiver management signals 388 kbit/s bidirectional

- Carrier for transceiver management signals IDU to ODU = 17.5 MHz/-15 dBmODU to IDU = 5.5 MHz/-15 dBm

- Remote power supply direct from battery voltage

24.12 AVAILABLE LOOPS

Following IDU loops are available:

• STM-1 loop, line side

• STM-1 loop, radio side

• baseband loop

• IDU loop.

24.13 BATTERY INTERFACE

- Input battery voltage 48Vdc +20% -15%

Warning:

As protection to power supply circuit, inside the equipment and behind the front panel, there is a fuse withthe following characteristics:

ALS - MN.00164.E - 001 187

- Nominal current 3A

- Nominal voltage 125 Vdc

- Type timed

- Dimensions 6.10 mm x 2.59 mm

- Contact soldering, not remplaceable during the service

- Position RIM module, behind front panel

24.14 POWER SUPPLY CURRENT

Power supply (Recc. EN 300 132-2)

- Battery voltage 48 Vdc +20% -15% (positive to ground)

- Imax at 48 Vdc

- 1+0 modular terminal <2 A (ALS6/7/8/11/13/15)<1,3 A (ALS18/23/25/28/38)

- 1+1 modular terminal <3,6 A (ALS6/7/8/11/13/15) (<1,8 A for con.)<2,3 A (ALS18/23/25/28/38) (<1,15A for con.)

- 1+0 XPIC modular terminal <3,6 A (ALS6/7/8/11/13/15) (<1,8 A for con.)<2,3 A (ALS18/23/25/28/38) (<1,15A for con.)

- 1+1 XPIC modular terminal <7,2 A (ALS6/7/8/11/13/15) (<1,8 A for con.)<4,6 A (ALS18/23/25/28/38) (<1,15A for con.)

- 1+0 compact terminal <1,9 A (ALS6/7/8/11/13/15)<1,2 A (ALS18/23/25/28/38)

188 ALS - MN.00164.E - 001

25 CHARACTERISTICS OF ODU

25.1 GENERAL

The following ODU characteristics, relevant to the radio frequency, are included in attached manuals:

• operating band and subbands

• band number and width of RF filter

• subdivision of the operating band in different transmitters

• TX guaranteed characteristics

• Rx guaranteed characteristics

• consumption and power supply characteristics

• losses in branching and flange typology towards antenna or wave guide.

ALS - MN.00164.E - 001 189

26 DESCRIPTION OF THE SDH IDU

26.1 GENERAL

SDH IDU is available in modular and compact versions.

Modular version has nxSTM1 or Ethernet line interface. Compact version has only STM-1 line interface.

Both versions can be connected to ODU AS and ODU ALS.

26.2 DESCRIPTION OF IDU SDH MODULAR (IDU ALS)

The SDH IDU consists of a wired mechanical shelf housing the following:

• LIM (Line Interface Module)

• RIM (Radio Interface Module)

• Controller.

In the following there is a description of each individual module.

26.2.1 LIM ETHERNET description

Three Ethernet ports are available: 2x10/100BaseT + 1x100BaseFX o 1000BaseSX/LX (Class 1 LED orLaser).

Functions are those of a transparent bridge working on OSI level 2:

• Level 2 QoS management with priority queues control

• Flow control

• Access to carrier through MAC address examination

• VLAN management with VLAN segregation on the carrier

• Spanning-Tree Protocol management to avoid undesirable loops in the network

Quality of Service (QoS) is managed at level 2 and 3 with 4 priority queues for every port.

Packets are sent to the right queue after analysis of the three bits of IEEE 802.1 tag or analysis of the bitsof ToS field in the IP header.

The module can accept Ethernet frames up to 1632 bytes but through LAN1 port configured as Full-Duplex1Gigabit JUMBO, the limit is 12KB.

Ethernet traffic is mapped in a GFP-F frame and multiplexed in VC3 (proprietary protocol): ALS link withEthernet LIM allows point to point or East/West connection with identical equipment only. In order to pro-vide independent routes in the network, two virtual concatenations are available.

Every port (3 external and 2 internal) can be associated to a different concatenation with transport variablecapacity, with 580Mbit/s radio side maximum throughput (290 mbit/s per direction in East/West configu-ration).

190 ALS - MN.00164.E - 001

Besides the Ethernet ports are available one V11 64 kbit/s contradir. channel (RJ45 connector) and eightE1 streams (single SCSI 50 pin connector) with 75 Ohms and 120 Ohms electrical interface: impedanceselection occurs through proper connection of pins during connector cabling preparation.

The eight streams are multiplexed and sent to Ethernet mapper circuit while the V11 channel is directlyconnected to STM-1 streams processor.

Functional description

Ethernet traffic is processed at level 2, “transparent bridge” mode. The three external Ethernet ports areconnected to an internal level 2 switch that routes the traffic in different direction depending on the MACaddress (MAC filtering).

LAN1 port in Full-Duplex 1Gigabit JUMBO (MAC filtering off) mode jumps this internal switch and sendstraffic to GFP-F framer directly.

Ethernet packet before to be sent to the proper VC3 is mapped in a GFP-F frame. For radio transport canexist up to 2 virtual concatenations of VC3 (each with relevant bridge).

A block diagram is in Fig.119 with all the following main functional blocks.

Electrical interface

Electrical interface complies to 802.3 standard and provides two RJ45 connectors on the front panel.

Optical interface

Optical interface is obtained with a pluggable Laser o LED transceiver with LC connector. Equipment con-troller gives the user information about transceiver presence/absence/type.

GMII Interface and GFP-F Frame

This circuit matches the switch GMII interface with the internal interface; packed traffic, before being car-ried through concatenated VC3, is encapsulated using GFP-F protocol that supports multilink transport.

Ethernet mapper

This circuit maps encapsulated packed traffic and tributaries (8 E1 streams) inside VC3 concatenated to-gether. Traffic can be divided in 2 different virtual concatenation in order to create different routes in thenetwork.

Each port can be associated to a different concatenation with transport variable capacity, with 580Mbit/sinternal side maximum throughput.

Micro Interface

All the configuration and management functions of the module are performed by Micro Interface

Microprocessor

The microprocessor manages dinamically the Spanning Tree Protocol. It has a Dual Port RAM for the inter-connection towards the main Controller

RAM

Memory necessary to recover the delay among the various VC3 of the same concatenation and to recoverthe originary sequence of Ethernet packet.

ALS - MN.00164.E - 001 191

STM-1 manager

The block converts the two virtual concatenations in STM-1 streams (and viceversa) in the same way de-scribed in 26.2.2.3 4xSTM-1 interface and in Fig.121.

Fig.119 - LIM Ethernet block diagram

Layer 2SWITCH

GMIIinterface

andGFP

framer

Ethernet mapper

STM-1 manager

1

2

3

4

RAM

Microprocessorinterface

8xE1mux/demux

μ Processor

RAMFLASH

Dual PortRam

Controllermodule

Opticaltransceiver

Electricalinterface

Electricalinterface

JUMBO frame

Trib. 1-8

V11

100FX or1000 SX/LX

100B T

100B T

Front

pan

el

192 ALS - MN.00164.E - 001

Fig.120 - LIM block diagram, RST mode - 2x2STM-1 version - from radio side to line side

Fig.121 - LIM - 4xSTM-1 mode

Framealigner

Hitless switch Switch control

Data–ck–framesync

Framealigner


2xSTM–1radio sideSOH Drop

F1D1–D3

RPM

J0

2 Mbit/s waysidedrop/destuff


RSOH insert 1 RSOH insert 2

Alarms(LOF, RPM, J0) dem1 and

2 alarms, Ber

F1 D1–D3 B1 J0 F1 D1–D3 B1 J0

STM–1 + 2 Mbit/s

STM–1

STM–1 + 2 Mbit/s

STM–1

Alarms(LOF, RPM, J0)

From DEM1 From DEM2

Service channelsinterconnection

64 kbit/s/V11local drop

Equip.controller

Waysideinterf.

2 Mbit/s

2 Mbit/s

STM–1line 2

STM–1line 1

As per circuitry of Fig. 119 and 120

As per circuitry of Fig. 119 and 120

LIM

MODEM A ODU A

MODEM B ODU B

STM–1#1

STM–1#2

STM–1#3

STM–1#4

ALS - MN.00164.E - 001 193

26.2.2 Description of the LIM nxSTM1

The LIM is placed between the line side and the RIM circuitry. It interfaces the STM-1, 2xSTM-1, 4xSTM-1tributary signals as below described.

26.2.2.1 STM-1 interface

Line side to radio side

As shown in Fig.123, the STM-1 from the line side is coming from the SPI physical interface, electrical oroptical, for format and level adaptation. The STM-1 is then sent to SOH drop circuit for RSOH bytes termi-nation. This is done after clock extraction and acknowledgment of A1, A2 frame alignment word made byan alignment circuit.

The SOH drop circuit extracts the following bytes:

• B1: byte Interleaved Parity, BIP-8 code using even parity. B1 byte carries link quality information.B1 byte is sent to main controller in order to process the performance monitoring relevant to G.828.It is calculated on all bits of the previous STM-1 frame after scrambling and placed into B1 byte ofthe current frame prior to scrambling.

• D1, D2, D3 are the DCC channels and are sent to main controller for supervision and managementof regenerator sections

• F1 is used for 64 kbit/s, V11 channel transmission. This signal can be terminated or passed to theradio side.

Remaining bytes are not changed and transit with no change. In case of input signal fail or failed recogni-tion of A1/A2 or J0 byte on both radio streams an alarm criteria is provided (LOS/LOF) which allows to:

• enable the local restart and permit the insertion of service signals relevant to RSOH section of SOHtowards the radio side.

• insert an MS AIS signal on the SOH and on the payload.

The RSOH bytes previously terminated from line side are radio side recovered for sending the whole STM-1 frame to the two RIMs. One 2 Mbit/s wayside channel is embedded in the STM-1 frame by using themedia dependent bytes and extra columns joined to STM-1 frame. The total bit rate corresponds to 157248kbit/s. Remaining bytes are not used and transit with no change.

Radio side to line side

As shown in Fig.123 STM-1 signals from RIMs are sent to SOH Drop circuits. The extraction of byte fromSOH relevant to RSOH section is carried out, after recognising A1, A2 alignment frame bytes by means ofan aligner. Besides, it is performed a check on the path identifier contained into J0 byte.

In case of input signal fail or failed recognition of A1/A2 or J0 bytes on both radio streams an alarm criteriais provided (LOS/LOF) which allows to:

• enable the local restart and permit the insertion of service signals relevant to RSOH section of SOHtowards the line side.

• insert an MS AIS signal on MSOH section of SOH and on the payload.



• D1, D2, D3 are the DCC channel and are sent to main controller for supervision and managementof regenerator sections

• F1 is used for extraction of a 64 kbit/s, V11 channel. This signal can be terminated or passed to theradio side.

• 2 Mbit/s wayside from media dependent bytes and extra columns joined to STM-1 frame.

194 ALS - MN.00164.E - 001

Remaining bytes are not changed and transit with no change.

In 1+1 version STM-1 signals at the output of the two SOH drop circuits are sent to the Rx switching sec-tion.

The switch is of hitless type. It provides the dynamic alignment for the two streams before switching withdelay compensation up to ±16 bit.

Switching operation can be observed on front panel LEDS.

Alarms and controls managed by the main controller manage the switching operation according to the fol-lowing priority list:

• power supply failure alarm

• local manual force command

• major receiver alarms: receiver failure, cable interface alarm, demodulator, LOS/LOF alarms

• HBER alarm: bit error rate with threshold presettable 10-6 or 10-3

• HBER alarm: bit error rate with threshold presettable 10-9 or 10-6

• Early warning: bit error rate with threshold presettable 10-12 or 10-9

• Prx alarm: presettable threshold within the received field range

• preferred branch presetting.

The STM-1 signal at switching output is sent to SOH Insert circuit to insert B1, DCC and F1. In case of localrestart A1, A2 bytes are regenerated for frame alignment purpose. SPI output circuit allows to adapt levelsand code to G.703 specification for electrical interface or G.957 for optical interface.

26.2.2.2 2xSTM-1 interface

Line side to radio side (see Fig.124)

The two STM-1 signals enter similar input circuits already seen in Fig.123, that is SPI and SOH drop.

The local restart and the consequent MS-AIS generation is enabled in case of missing of both STM-1 inputsignals.

The generation of the 2xSTM-1 frame is obtained by interleaving column by column the two STM-1 framesplus additional columns dedicated for the insertion of two local 2 Mbit/s wayside.

The 2xSTM-1 frame generation is enabled provided that the two input STM-1 are synchronous betweenthem (see paragraph 26.2.2.4 Up to 4xSTM-1 synchronisation for details).

The frame also contains the J0 bytes and B1 bytes for radio path trace and performance monitoring.

As far as F1 carrying 64 kbit/s V.11 is concerned, the physical interface point on the LIM front is only one.The operating mode is controlled as follows:

• line side: via software it is possible to terminate one F1 and enable the transit to the other in pass-through modality

• radio side: via software it is possible to enable one F1 whereas the F1, line side, transits in pass-through modality.

At the output of the 2xSTM-1 multiplexer the bit rate of the signal is 314496 kbit/s.

Along with the relevant clock the 314496 kbit/s signal is sent to the two modulators within the RIM via anhybrid for signal duplication.

Radio side (see Fig.125)

The 2xSTM-1 signal plus relevant cks from demodulators within the RIMs are sent to the frame alignercircuits with the purpose of extracting radio performances and alarms (LOS, J0 trace identifier mismatch)that drive the hitless switch. This latter provides dynamic alignment of ±7 bytes before switching. The2xSTM-1 radio side SOH drop circuit terminates the F1, D1-D3, J0, RPM (Radio Performance Monitoring)signals that were embedded in the 2x2STM-1 frame in the far terminal, radio side.

ALS - MN.00164.E - 001 195

At the output of SOH drop circuit will be available, on two separated paths, the two STM-1 signals plus the2 Mbit/s way side.

The circuits that follow first terminate the wayside signals sending them to the 2 Mbit/s output interfacesand then, through a RSOH insert circuit, embed the F1, D1-D3, J0, B1 into the two STM-1 frames to bedelivered to the line side.

Take into account that only one F1 can be use to carry a 64 kbit/s -V.11 channel from the local serviceinterface. The other F1 carries another 64 kbit/s-V11 channel (if used) in pass-through mode.


Refer to Fig.126.

The four STM-1 signals are two by two grouped (precisely STM-1#1 with STM-1#2 and STM-1#3 with STM-1#4) and then sent to two different 2xSTM-1 multiplexers.

The signal processing is equal to that already seen in paragraph 26.2.2.2 2xSTM-1 interface. The outputof the 2x2 STM-1 multiplexers are individually sent to modem 1 and modem 2 to be applied, through thetwo transceivers, to a double-polarization antenna.

This occurs when the frequency re-use system is used.

26.2.2.4 Up to 4xSTM-1 synchronisation

Refer to Fig.127. The 2xSTM1 or 4xSTM-1 configurations require:

• the input STM-1s to be synchronous among them;

• the selection of the clock signal achieved from one of the input STM-1.

This to the purpose to generate a common synchronisation that enables the generation of one (2xSTM-1transmission) or two 2xSTM-1 (4xSTM-1 transmission) frames along with the 2x2 Mbit/s waysides and 64kbit/s service channel.

As shown by the Fig.127 the clocks extracted from the up to four STM-1 signals are sent to a selectioncircuit that chooses one of the four signals depending on the control sent by a selection logic. This latteracts on the base of alarm roots (LOS-loss of input signal or LOF-loss of frame) priority assigned and manualforcing. The selected clock drives an oscillator through a PLL circuit. The oscillator will generate the re-quired synchronisation for the 2xSTM-1 frame generation. If no input signals are available the internal os-cillator source is used for the local restart.

26.2.3 Description of the RIM

The RIM consists of a common board housing the following mains circuits:

• 32/128 QAM modemodulator

• power supply and cable interface.

26.2.3.1 Modem

Reference is made to Fig.128.

196 ALS - MN.00164.E - 001

Modulator side

The aggregate signal from LIM is enriched with extra redundancy for FEC operation reaching the total mod-ulating rate shown below:

• 169036,846 kbit/s (1xSTM-1 version)

• 338073,692 kbit/s (2xSTM-1 version).

The circuit that follows encodes the data for the 32 or 128 constellation points and then, through a digitalfilters and D/A converters, supplies the I & Q signals to the QAM modulator along with 330 MHz carrier.The QAM modulated carrier is passed, through an IF low pass filter and an amplifier, to the cable interfacecircuit for the connection to the IDU/ODU cable.

Demodulator side

The 140 MHz QAM modulated carrier from ODU, is received by the demodulator input passing through thecable interface circuit.

An IF amplifier provided with AGC compensates for cable loss.

This amplifier has two outputs: one connected to the I&Q demodulator circuit, the other can be used forXpic operation.

The I&Q demodulator is driven by a 140 MHz recovered carrier. The carrier and clock recovery informationare achieved by the relevant circuits. From the analogue to digital converters the I&Q signals are sent tothe adaptive equalizer to minimize the intersymbolic interference.

The data are then passed to the decoder and the error corrector for the relevant processing and for gen-eration of a single aggregate signal to be sent to the LIM.

26.2.3.2 Power supply and cable interface


The Power Supply Unit receives the 48 V battery voltage from a 3W3 SUB-D connector on RIM front. Thebattery is processed through a DC to DC converter to achieve the +3.5V; +1.5V; +5V to power feed theLIM and the RIM.

The same battery voltage is sent to the interconnection cable to power the far ODU. An automatic protec-tion protects the battery against cable short.

The Cable Interface permits the bidirectional dialogue between IDU and ODU. It consists of combinationand separation filters.

Signals from IDU to ODU are the following:

• battery voltage between the core and the cable shield

• 330 MHz, 32/128QAM modulated carrier carrying the main signal

• 17.5 MHz FSK modulated carrier coming from the LIM and carrying the controls for ODU manage-ment.

Signal from ODU to IDU are the following:

• 5 MHz FSK modulated carrier going to LIM and carrying the measurements and alarms from ODU

• 140 MHz 32/128 QAM modulated carrier carrying the main signal

ALS - MN.00164.E - 001 197

26.2.4 Description of RIM with XPIC

The RIM with XPIC for frequency reuse systems consists of a common board housing the following maincircuits:

• 32/128QAM modemodulator

• 32/128QAM additional demodulator

• power supply and cable interface.

Modemodulator, power supply and cable interface are the same of normal RIM.

Additional demodulator for frequency reuse system

The frequency reuse system allows the coexistence of two radio bearer transmission on the same radiochannel. Each radio bearer carries up to 2xSTM-1 signal. The system consists of two fully independenttransceivers, each of one connected to one polarisation of a dual polarized antenna (see Fig.129).

Each receiving path receives the signal from the same polarisation and the interference signal from thecross polarisation.

The interference signal can varies both in amplitude and phase as a function of the RF channel distortiondue to the propagation condition. The frequency reuse system makes use of an additional demodulatorthat receives the IF signal from the receiver placed on the cross polarized antenna. The demodulator isequipped with an adaptive equalizer (XPIC) able to perform in the time domain the opposite function ofthe channel distortion. The signal thus generated, summed-up with the one available on the main demod-ulator, permits to cancel the interference contained in the copolar signal.

This RIM has 3 connectors (see Fig.122) on front panel:

• SMA connector for IF IDU-ODU cable

• SMA connector to send Rx signal to other RIM on other polarization

• SMA connector to receive Rx signal from the other RIM working on the other polarization.

Fig.122 – RIM with XPIC into 1RU IDU ALS

26.2.5 Description of the controller

The controller module supplies the following:

• the interface ports for the management program access

• the equipment software for equipment management

• the alarm interface through relay contacts that permits to transfer outside the alarm severity asso-ciated to each alarm root along with external input alarms.

-+

X X

XX

+ -W.S.1 W.S.2 V11

ONONONON

FAIL1 2 3 4

REM

R

USER IN/OUTRS232LCTTEST

ODUIDU

Q3

198 ALS - MN.00164.E - 001

26.2.5.1 Interface ports

The SCT/LCT or NMS5UX management program takes access to the equipment through the following in-terface ports:

• LCT provided with an USB access connector with a maximum speed rate of 12 Mbit/s

• RS232 provided with a SUB-D access connector with a maximum speed rate of 57.6 kbit/s

• Q3-Ethernet IEEE 802.3 with three different access connector options: RJ45/AUI/BNC.

• STM-1 QECC using D1-D3-SOH bytes of the STM-1 frame with a speed rate of 192 kbit/s.

26.2.5.2 Equipment firmware

Equipment firmware controls and manages all the equipment functionalities.

It is distributed over two hardware levels: main controller within the controller module and peripheral con-troller within the ODU. The dialogue between the main and slave controllers occurs through a 388 kbit/sframe carried by FSK modemodulators (see Fig.131) housed into IDU and ODU.

Main controller

The activities performed by the main controller are the following:

• Communication management: it makes use of SNMP as management protocol and IP or IPoverOSIas communication protocol stacks. See Fig.132 and Fig.133 for details.The interface ports to permits the dialogue man-machine between the SCT/LCT - NMS5UX programsand the main controller are listed in paragraph 26.2.5.1.

• Log-in: the main controller manages the equipment or network login/logout by setting and thencontrolling the user’s ID and relevant password.

• Database (MIB): validation and storing in a non-volatile memory of the equipment configuration pa-rameters.

• Equipment configuration: distribution of the parameters stored in the MIB towards the peripheralµPs for their attenuation in addition to the controls from user not stored in the MIB (i.e. loops, man-ual forcing etc....)

• Alarm monitoring: acquisition, filtering and correlation of the alarms gathered from slaved µPs. Lo-cal logger and alarm sending to the connected managers: SCT/LCT-NMS5UX. Management of thealarm signalling on the LIM front panel.

• Performances: PM management as per Recc. G.828.

• Download: the main controller is equipped with two flash memory banks containing the running pro-gram (active bank) and the stand-by program (inactive bank). This permits to download a new soft-ware release to the inactive bank without distributing the traffic. Bank switch enables the newrelease to be used. Download activity is based on FTP protocol which downloads application pro-grams, FPGA configuration, configuration files on main controller inactive bank or directly on theperipheral controllers.

Peripheral controller

The peripheral controllers take place within the ODU and are slaved to main controller with the task of ac-tivating controls and alarm reporting of dedicated functionality.

ALS - MN.00164.E - 001 199

26.2.6 IDU telemetry

Refer to Fig.134. The telemetry is used to:

• propagate towards the far radio terminal the following information: ATPC, user inputs and alarms.It makes use of the S (2,2) media dependent byte for the transport.

• permits the dialogue between IDU and ODU. the ODU management controls are framed over a 388kbit/s signal that from the main controller is propagated over the IDU/ODU interconnecting cablemaking use of a 5.5 MHz FSK modulated carrier.

Similarly alarms and status from ODU are propagated towards IDU making use of another 388 kbit/sframed signal that is propagated over the interconnecting cable making use of a 17 MHz, FSK modulatedcarrier.

26.2.7 IDU loops

To control the IDU correct operation a set of local and remote loops are made available. The controls aresent by the management program (SCT/LCT or NMS5UX). Refer to Fig.135 for details.

26.2.7.1 Line loop

Local loop

Each input STM-1 signal is routed back directly to the output thus permitting to control the IN/OUT inter-connecting cables.

Remote loop

Each output STM-1 signal is routed back towards the radio. This permits to control the path back and for-ward.

26.2.7.2 Baseband loop

The input 1xSTM-1 or 2x STM-1 signals are multiplexed and then, through the loop, routed back to theoutput lines. This permits to control all the LIM circuitry.

26.2.7.3 IDU loop

This loop permits to control the full IDU operation. It happens inside the RIM. The modulator output signalis routed back to the demodulator. Upon enabling the loop, the 330 MHz modulator output frequency isconverted to 140 MHz (demodulator input).

Warning: If IDU loop (IF) doesn’t work, please repeat the IDU loop (IF) with the IDU-ODU cable discon-nected from IDU to give a final result.

200 ALS - MN.00164.E - 001

26.2.8 Front panel of SDH IDU modular (IDU ALS)

Fig.136 shows the front panel of SDH IDU modular (with RIM XPIC) with LEDs and connectors highlighted.

26.3 DESCRIPTION OF IDU SDH COMPACT (IDU ALS-C)

26.3.1 General

IDU SDH compact version is an indoor unit for SDH equipment produced in single board structure. There’sno protected configuration and no XPIC. Two different hardware composition are available for the sameunit in order to operate with user interfaces and services a) and b), as illustrated in the Tab.29.

Tab.29 - Service and user interfaces

Capacities 155 Mbit/s (with 32QAM/128QAM modulation) and 311 Mbit/s (with 128QAM modulation) areprovided.

Specifically the possible alternatives are:

• STM1 (155 Mbit/s) 128QAM - 28 MHz

• STM1 (155 Mbit/s) 32QAM - 56 MHz

• 2xSTM1 (311 Mbit/s) 128QAM - 56 MHz.

IDU consists of a single module which contains all devices to realize following functions:

• line interface

• radio interface

• equipment controller

• IDU loop

• baseband loop

• line loop.

26.3.1.1 STM-1 interface

Line side to radio side

As shown in Fig.137, the STM-1 signal from the line side is coming from the SPI physical interface, electricalor optical, for format and level adaptation. The STM-1 is then sent to SOH drop circuit for RSOH bytes ter-mination. This is done after clock extraction and acknowledgment of A1, A2 frame alignment word madeby an alignment circuit.


• B1: byte Interleaved Parity, BIP-8 code using even parity. B1 byte carries link quality information.B1 byte is sent to main controller in order to process the performance monitoring relevant to G.828.

Type User Payload Service

a2xSTM1 electrical with 1.0/2.3

2xE1 (wayside) connectors1xV11

1xRS232

b2XSTM1 optical/electrical with plug-in module

2xE1 (wayside) connectors1xUSB

2xETH10/100

ALS - MN.00164.E - 001 201

It is calculated on all bits of the previous STM-1 frame after scrambling and placed into B1 byte ofthe current frame prior to scrambling.

• D1, D2, D3 are the DCC channels and are sent to main controller for supervision and managementof regenerator sections

• F1 is used for 64 kbit/s, V11 channel transmission. This signal can be terminated or passed to theradio side.

Remaining bytes are not changed and transit with no change. In case of input signal fail or failed recogni-tion of A1/A2 or J0 byte on both radio streams an alarm criteria is provided (LOS/LOF) which allows to:

• enable the local restart and permit the insertion of service signals relevant to RSOH section of SOHtowards the radio side.

• insert an MS AIS signal on the SOH and on the payload.

The RSOH bytes previously terminated from line side are radio side recovered for sending the whole STM-1 frame to modulator. One 2 Mbit/s wayside channel is embedded in the STM-1 frame by using the mediadependent bytes and extra columns joined to STM-1 frame. The total bit rate corresponds to 157248 kbit/s. Remaining bytes are not used and transit with no change.

Radio side to line side

As shown in Fig.137 STM-1 signals from demodulator are sent to SOH Drop circuits. The extraction of bytefrom SOH relevant to RSOH section is carried out, after recognising A1, A2 alignment frame bytes bymeans of an aligner. Besides, it is performed a check on the path identifier contained into J0 byte.

In case of input signal fail or failed recognition of A1/A2 or J0 bytes on both radio streams an alarm criteriais provided (LOS/LOF) which allows to:

• enable the local restart and permit the insertion of service signals relevant to RSOH section of SOHtowards the line side.

• insert an MS AIS signal on MSOH section of SOH and on the payload.



• D1, D2, D3 are the DCC channel and are sent to main controller for supervision and managementof regenerator sections

• F1 is used for extraction of a 64 kbit/s, V11 channel. This signal can be terminated or passed to theradio side.

• 2 Mbit/s wayside from media dependent bytes and extra columns joined to STM-1 frame.

Remaining bytes are not changed and transit with no change.

The STM-1 signal is sent to SOH Insert circuit to insert B1, DCC and F1. In case of local restart A1, A2 bytesare regenerated for frame alignment purpose. SPI output circuit allows to adapt levels and code to G.703specification for electrical interface or G.957 for optical interface.


Line side to radio side (see Fig.138)

The two STM-1 signals enter similar input circuits already seen in Fig.137, that is SPI and SOH drop.

The local restart and the consequent MS-AIS generation is enabled in case of missing of both STM-1 inputsignals.

The generation of the 2xSTM-1 frame is obtained by interleaving column by column the two STM-1 framesplus additional columns dedicated for the insertion of two local 2 Mbit/s wayside.

202 ALS - MN.00164.E - 001

The 2xSTM-1 frame generation is enabled provided that the two input STM-1 are synchronous betweenthem. The frame also contains the J0 bytes and B1 bytes for radio path trace and performance monitoring.

As far as F1 carrying 64 kbit/s V.11 is concerned, the physical interface point on the front is only one. Theoperating mode is controlled as follows:

• line side: via software it is possible to terminate one F1 and enable the transit to the other in pass-through modality

• radio side: via software it is possible to enable one F1 whereas the F1, line side, transits in pass-through modality.

At the output of the 2xSTM-1 multiplexer the bit rate of the signal is 314496 kbit/s. Along with the relevantclock the 314496 kbit/s signal is sent to modulator.

Radio side (see Fig.139)

The 2xSTM-1 signal plus relevant clock from demodulator are sent to the frame aligner circuits with thepurpose of extracting radio performances and alarms (LOS, J0 trace identifier mismatch). The 2xSTM-1radio side SOH drop circuit terminates the F1, D1-D3, J0, RPM (Radio Performance Monitoring) signals thatwere embedded in the 2x2STM-1 frame in the far terminal, radio side.

At the output of SOH drop circuit will be available, on two separated paths, the two STM-1 signals plus the2 Mbit/s way side.

The circuits that follow first terminate the wayside signals sending them to the 2 Mbit/s output interfacesand then, through a RSOH insert circuit, embed the F1, D1-D3, J0, B1 into the two STM-1 frames to bedelivered to the line side.

Take into account that only one F1 can be use to carry a 64 kbit/s -V.11 channel from the local serviceinterface. The other F1 carries another 64 kbit/s-V11 channel (if used) in pass-through mode.

26.3.1.3 Modem


Modulator side

The aggregate signal from line interface is enriched with extra redundancy for FEC operation reaching thetotal modulating rate shown below:

• 169036,846 kbit/s (1xSTM-1 version)

• 338073,692 kbit/s (2xSTM-1 version).

The circuit that follows encodes the data for the 32 or 128 constellation points and then, through a digitalfilters and D/A converters, supplies the I & Q signals to the QAM modulator along with 330 MHz carrier.The QAM modulated carrier is passed, through an IF low pass filter and an amplifier, to the cable interfacecircuit for the connection to the IDU/ODU cable.

Demodulator side

The 140 MHz QAM modulated carrier from ODU, is received by the demodulator input passing through thecable interface circuit.

An IF amplifier provided with AGC compensates for cable loss.

This amplifier has two outputs: one connected to the I&Q demodulator circuit, the other can be used forXpic operation.

The I&Q demodulator is driven by a 140 MHz recovered carrier. The carrier and clock recovery informationare achieved by the relevant circuits. From the analogue to digital converters the I&Q signals are sent tothe adaptive equalizer to minimize the intersymbolic interference.

The data are then passed to the decoder and the error corrector for the relevant processing and for gen-eration of a single aggregate signal to be sent to line interface.

ALS - MN.00164.E - 001 203

26.3.1.4 Power supply and cable interface


The Power Supply Unit receives the 48 V battery voltage from a 3W3 SUB-D connector on RIM front. Thebattery is processed through a DC to DC converter to achieve the +3.5V; +1.5V; +5V to power feed theIDU.

The same battery voltage is sent to the interconnection cable to power the far ODU. An automatic protec-tion protects the battery against cable short.

The Cable Interface permits the bidirectional dialogue between IDU and ODU. It consists of combinationand separation filters.

Signals from IDU to ODU are the following:

• battery voltage between the core and the cable shield

• 330 MHz, 32/128QAM modulated carrier carrying the main signal

• 17.5 MHz FSK modulated carrier coming from the Controller and carrying the controls for ODU man-agement.

Signal from ODU to IDU are the following:

• 5 MHz FSK modulated carrier going to Controller and carrying the measurements and alarms fromODU

• 140 MHz 32/128 QAM modulated carrier carrying the main signal

26.3.2 Controller

The controller manages the following:

• the interface ports for the management program access

• the equipment firmware for equipment functioning

• the alarm interface through relay contacts that permits to transfer outside the alarm severity asso-ciated to each alarm root along with external input alarms.

26.3.2.1 Interface ports

The SCT/LCT or NMS5UX management program takes access to the equipment through the following in-terface ports:

• LCT provided with an USB access connector with a maximum speed rate of 12 Mbit/s

• RS232 provided with a SUB-D access connector with a maximum speed rate of 57.6 kbit/s

• Q3-Ethernet IEEE 802.3 with RJ45 connector

• STM-1 QECC using D1-D3-SOH bytes of the STM-1 frame with a speed rate of 192 kbit/s.

26.3.2.2 Equipment firmware

Equipment firmware controls and manages all the equipment functionalities.

It is distributed over two hardware levels: main controller within the controller module and peripheral con-troller within the ODU. The dialogue between the main and slave controllers occurs through a 388 kbit/sframe carried by FSK modemodulators (see Fig.142) housed into IDU and ODU.

204 ALS - MN.00164.E - 001

Main controller

The activities performed by the main controller are the following:

• Communication management: it makes use of SNMP as management protocol and IP or IPoverOSIas communication protocol stacks. See Fig.143 and Fig.144 for details.

• Log-in: the main controller manages the equipment or network login/logout by setting and thencontrolling the user’s ID and relevant password.

• Database (MIB): validation and storing in a non-volatile memory of the equipment configuration pa-rameters.

• Equipment configuration: distribution of the parameters stored in the MIB towards the peripheralµPs for their attenuation in addition to the controls from user not stored in the MIB (i.e. loops, man-ual forcing etc....)

• Alarm monitoring: acquisition, filtering and correlation of the alarms gathered from slaved µPs. Lo-cal logger and alarm sending to the connected managers: SCT/LCT-NMS5UX. Management of thealarm signalling on the front panel.

• Performances: PM management as per Recc. G.828.

• Download: the main controller is equipped with two flash memory banks containing the running pro-gram (active bank) and the stand-by program (inactive bank). This permits to download a new soft-ware release to the inactive bank without distributing the traffic. Bank switch enables the newrelease to be used. Download activity is based on FTP protocol which downloads application pro-grams, FPGA configuration, configuration files on main controller inactive bank or directly on theperipheral controllers.

Peripheral controller

The peripheral controllers take place within the ODU and are slaved to main controller with the task of ac-tivating controls and alarm reporting of dedicated functionality.

26.3.3 IDU telemetry

Refer to Fig.145. The telemetry is used to:

• propagate towards the far radio terminal the following information: ATPC, user inputs and alarms.It makes use of the S (2,2) media dependent byte for the transport.

• permits the dialogue between IDU and ODU. the ODU management controls are framed over a 388kbit/s signal that from the main controller is propagated over the IDU/ODU interconnecting cablemaking use of a 5.5 MHz FSK modulated carrier.

Similarly alarms and status from ODU are propagated towards IDU making use of another 388 kbit/sframed signal that is propagated over the interconnecting cable making use of a 17 MHz, FSK modulatedcarrier.

26.3.4 IDU loops

To control the IDU correct operation a set of local and remote loops are made available. The controls aresent by the management program (SCT/LCT or NMS5UX). Refer to Fig.146 for details.

ALS - MN.00164.E - 001 205

26.3.4.1 Line loop

Local loop

Each input STM-1 signal is routed back directly to the output thus permitting to control the IN/OUT inter-connecting cables.

Remote loop

Each output STM-1 signal is routed back towards the radio. This permits to control the path back and for-ward.

26.3.4.2 Baseband loop

The input 1xSTM-1 or 2x STM-1 signals are multiplexed and then, through the loop, routed back to theoutput lines. This permits to control all the line interface circuitry.

26.3.4.3 IDU loop

This loop permits to control the full IDU operation. The modulator output signal is routed back to the de-modulator. Upon enabling the loop, the 330 MHz modulator output frequency is converted to 140 MHz (de-modulator input).

Warning: If IDU loop (IF) doesn’t work, please repeat the IDU loop (IF) with the IDU-ODU cable discon-nected from IDU to give a final result.

26.3.5 Front panel of SDH IDU compact (IDU ALS-C)

Fig.147 shows the front panel of SDH IDU compact with LEDs and connectors highlighted.

206 ALS - MN.00164.E - 001

Fig.123 – LIM block diagram, RST mode - 1xSTM-1 operation

remar

F

HO

Spor

D

sseltiH x

Rairetirc

ataD

ssol

lacoLtratser

SIA

SM

lacoLrhcnys.reneg

HO

StresnI

IP

Stu

O

evoba sA

HO

SR

setybpor d

wS

airetirc

1–M

TS

LA

LA

1 –M

TS

1–M

TS

FOL /

SOL

HO

SR

sety btresni

1–M

TS

ro 307.G

kC

1–M

TS

kC

2MI

R morf

1MI

R morf

HO

StresnI

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SIA

SM

HO

Spor

DI

PSnI

1–M

TS

remar

F

ataD

ssol

kC

LA

LA

HO

SR

setybpord

HO

SR

se tybtres ni

1–M

TS

1–M

TS

1MI

R ot

2MI

R ot

rellortnoc niaM

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OS

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759.G

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759.G

smral

A

smra l

A

s/tibM 2

edisyaw s/tib

M 2edisya

w

s/tibM 2

s/t ibM 2

ALS - MN.00164.E - 001 207

Fig.124 – LIM block diagram, RST operation mode - 2xSTM-1 operation mode - from line side to radio side

1P

OR

D H

OS

R ,IP

S2

PO

RD

HO

SR ,I

PS

tresnI H

OS sulp rexelpitlu

m edis oidaR 1–

MT

Sx2

1D

OM ot

2D

OM ot

KC + ata

D

2B+ 1

BM

P0J

1F

3D–1

D

s /t ibM 2

tresn i edisyaw

g ni ffuts dna

+ 1–M

TS

ed isyaw

2B+1

BM

P1

F0J

3D–1

D

s/ tibM 2

tres ni ed isyaw

gniffuts d na

+ 1–M

TS

edisy aw

1–M

TS

1–M

TS

edisyaW

secafretni

s/tibM 2x2

1–M

TS

enil morf

slen nahc ecivreS

snoitcenn ocretn i

3D–1

D1

F

tratser lacoLSI

A S

M &

.rusa em

S IA –

SM

0J

liaf 2/1–M

TS

liaf 1/ 1–M

TS

1B

1–M

TS

en il m orf

11V/s/ti bk 46

tresn i laco l

.piuqE

rellortn oc

edisyaW

ecafretni

208 ALS - MN.00164.E - 001

Fig.125 – LIM block diagram, RST operation mode - 2xSTM-1 version - from radio side to line side

Fig.126 – LIM - 4xSTM-1 operation mode

Framealigner

Hitless switch Switch control


Framealigner



F1D1–D3

RPM

J0




Alarms(LOF, RPM, J0) dem1 and

2 alarms, Ber

F1 D1–D3 B1 J0 F1 D1–D3 B1 J0

STM–1 + 2 Mbit/s

STM–1

STM–1 + 2 Mbit/s

STM–1


From DEM1 From DEM2



Equip.controller

Waysideinterf.

2 Mbit/s

2 Mbit/s

STM–1to line

STM–1to line

As per circuitry of Fig. 124

As per circuitry of Fig. 124

LIM

MODEM A ODU A

MODEM B ODU B

STM–1#1

STM–1#2

STM–1#3

STM–1#4

ALS - MN.00164.E - 001 209

Fig.127 – Synchronisation block diagram

Clockselection

Logiccircuit for

clockselection

Synchronismfor 2xSTM–1generation

Ck from STM–1/1

Ck from STM–1/2

Ck from STM–1/3

Ck from STM–1/4

LOS 1–4

LOF 1–4

Priority control

Manual forcing

Control

210 ALS - MN.00164.E - 001

Fig.128 – Modemodulator block diagram

MI L morf ata

D&

CE

Fredocne

latigiD

retlif

DA

DA

Q&I

rotaludom

elbaC

ecafretni

& FI

CG

A

DA

DA

Q&I

.domed

evitp adA

rezilauq eK

Cyrev ocer

reirraC

y revocer

ror rE

ro tcerrocredoc ed

&

M IL ot at aD

tuptuo FI

041 O

CV

zH

M

CIP

X

DA

DA

FIecafretni

Q&I

.domed

tupni FI

OX

CV

041 O

CV

zH

M

zH

M 033rotallicso

ALS - MN.00164.E - 001 211

Fig.129 – Frequency reuse system arrangement

Fig.130 – Power supply and cable interface block diagram

+

+

Rx1

Rx2

V

H

IF

IF

MainDEM

MainDEM

Dem withXPIC

Dem withXPIC

RIM1

RIM2

data H

data V

TxA

TxB

V

H

Data H

Data V

Cableinterface

MOD

DEM140 MHz

330 MHz

Filtering& fuse

––

MODFSK

DEMFSK

LIM

5 MHz

17,5 MHzto/fromODU

–48 Vbattery +5 V

+1.5 V+3.5 V

Cableprotec.

212 ALS - MN.00164.E - 001

Fig.131 – Main and peripheral controller connection

Fig.132 – Full-IP protocol stack

rellortnoc niaM

s/bk 833

s/tibk 883

NAL

232S

RT

CLnI res

U/

mralA

tuO res

U

KS

Fmedo

m

KS

Fmedo

m

2U

DO

s/bk 883

s/ tibk 88 3KS

Fmedo

m

KS

Fmedo

m

1U

DO

CC

D

s/tibk 883rotareneg

reviecer

s/tibk 883rotareneg

reviecer

.cer/neglarehpire

Prellortnoc

larehpireP

rellortnoc.cer/neg

smral

A

STM–1 DCC Line sideSTM–1 DCC Radio side

PPP PPP

ISO 8802.3(Ethernet LAN)

LLC ISO 8802.2MAC ISO 8802.3

AsynchronousRS –232

PPP

IP / OSPF

TCP/UDP

SNMP

ALS APPLICATION SOFTWARE

ALS - MN.00164.E - 001 213

Fig.133 – OSI+IP protocol stack

Fig.134 – IDU telemetry

AsynchronousRS– 232

PPP

STM–1 DCC– Line sideSTM–1 DCC– Radio sideISO 8802.3(Ethernet LAN)


LAPDQ.921

LAPDQ.921

ISO 8473 ISO 10598 IS– IS

IP / OSPF

TCP/UDP

SNMP


yrtemeleT

sdrawot

etomer

ecafretnI1–

MT

Sx2e

marf

DO

MK

SF

ME

DK

SF

UD

O oTMI

R aiv

niaM

rellortnoc/

TC

ST

CL S

(2.2

)

71z

HM

5z

HM

214 ALS - MN.00164.E - 001

Fig.135 – IDU loops

DO

MM

AQ

033

041

ME

DM

AQ

ro 1–M

TSx1

1–M

TSx2

XU

M

ro 1–M

TSx1

1–M

TSx2

XU

M

MIR

MIL

BB

pool

UDI

pooleniLpool

meR

pool enil

ot p u1–

MT

Sx2

ot pu1–

MT

Sx2

zH

M 033

zH

M 04 1

ALS - MN.00164.E - 001 215

1 Led fail (self test controller)

- Electrical or plug-in line interface (electrical or optical with LED ON) and fail

- 2xE1 wayside (RJ45)

- V11 (RJ45)

- IDU-ODU cable (SMA) connector

- IF out XPIC (SMA) connector

- IF in XPIC (SMA) connector

- -48 Vdc power supply connector, positive to ground

- Switch button

- LCT (USB) connector

- RS232 (SUB-D 9 pin male) connector

- User In/Out (SUB-D 9 pin male) connector

- Q3 (RJ45) connector

- Reset button

- IDU alarm LEDs (red), ODU (red), REM (red), TEST (yellow)

Fig.136 - Front panel of SDH IDU modular

-

+

X X

XX

+ -W.S.1 W.S.2 V11

ONONONON

FAIL1 2 3 4

REM

R

USER IN/OUTRS232LCT

TEST

ODUIDU

Q3

151413121110

1 2 3 4 5 6 7 8 9

216 ALS - MN.00164.E - 001

Fig.137 – Line interface block diagram, RST mode - 1xSTM-1 operation (IDU SDH compact)

remar

F

HO

Spor

D

ataD

ssol

lacoLtratser

SIA

SM

lacoLrhcnys.reneg

HO

StresnI

IP

Stu

O

HO

SR

setybpor d

1–M

TS

LA

LA

1 –M

TS

FOL /

SOL

HO

SR

sety btresni

1–M

TS

ro 307.G

kC1

MIR

morf

HO

StresnI

lacoLt ratse r

lacoLrhcnys.reneg

SIA

SM

HO

Spor

DI

PSnI

1–M

TS

remar

F

ataD

ssol

kC

LA

LA

HO

SR

setybpord

HO

SR

se tybtres ni

1–M

TS

rellortnoc niaM

dna lortn oc etyb H

OS

759.G

ro 307 .G

759.G

smral

A

smr

a lA

s/tibM 2

edisyaw s/ti b

M 2edisya

w

s/tibM 2

s/t ibM 2

to m

odula

tor

outp

ut

input

ALS - MN.00164.E - 001 217

Fig.138 – Line interface block diagram, RST operation mode - 2xSTM-1 operation mode - from line side to radio side - IDU SDH compact

1P

OR

D H

OS

R ,IP

S2

PO

RD

HO

SR ,I

PS

t resnI H

OS sul p r exe lpi tlu

m e dis oi daR 1 –

MT

Sx2

KC + ata

D

2B+1

BM

P0J

1F

3D– 1

D

s /t ibM 2

tresn i edisyaw

g ni ffuts dna

+ 1–M

TS

edisyaw

2B +1

BM

P1

F0J

3D–1

D

s/ tibM 2

tres ni ed isyaw

gniffuts d na

+ 1–M

TS

edisyaw

1–M

TS

1 –M

TS

edisyaW

secafretni

s/tibM 2x2

slen nahc ecivreS

snoitcenn ocretn i

3D–1

D1

F

tr ats er lacoLSI

A S

M &

.rusaem

S IA –

SM

0J

liaf 2/1–M

TS

l iaf 1 / 1 –M

TS

1B

11V/s /tibk 4 6

tresn i laco l

.piuqE

rellortn oc

edisyaW

ecafretni

to m

odula

tor

STM

-1 input

n°

2STM

-1 input

n°

1

218 ALS - MN.00164.E - 001

Fig.139 – Line interface block diagram, RST operation mode - 2xSTM-1 version - from radio side to line side (IDU SDH compact)

Framealigner



F1D1–D3

RPM

J0





F1 D1–D3 B1 J0 F1 D1–D3 B1 J0

STM–1 + 2 Mbit/s

STM–1

STM–1 + 2 Mbit/s

STM–1

From DEM



Equip.controller

Waysideinterf.

2 Mbit/s

2 Mbit/s

STM–1output n°2

STM–1output n°1

ALS - MN.00164.E - 001 219

Fig.140 – Modemodulator block diagram

& C

EF

redocnelatigi

Dretlif

DA

DA

Q&I

rotaludom

elbaC

ecafretni

& FI

CG

A

DA

DA

Q&I

.domed

evitp adA

rezilauq eK

Cyrev ocer

reirraC

yrevocer

ror rE

ro tcerrocredoc ed

&

041 O

CV

zH

MO

XC

V

zH

M 033rotallicso

from

lin

e in

terf

ace

to lin

e in

terf

ace

a/da

OD

U

220 ALS - MN.00164.E - 001

Fig.141 – Power supply and cable interface block diagram

CO

NTRO

LLER

Cableinterface

MOD

DEM140 MHz

330 MHz

Filtering& fuse

––

MODFSK

DEMFSK

5 MHz

17,5 MHzto/fromODU

–48 Vbattery +5 V

+1.5 V+3.5 V

Cableprotec.

ALS - MN.00164.E - 001 221

Fig.142 – Main and peripheral controller connection

Fig.143 – Full-IP protocol stack

rellortnoc niaM

NAL

232S

RT

CLnI res

U/

mralA

tuO res

U

s/bk 883

s/ tibk 88 3KS

Fmedo

m

KS

Fmedo

m

UD

O

CC

D

s/tibk 883rotareneg

reviecer

larehpireP

rellortnoc.cer/neg

smral

A

STM–1 DCC Line sideSTM–1 DCC Radio side

PPP PPP

ISO 8802.3(Ethernet LAN)


AsynchronousRS –232

PPP

IP / OSPF

TCP/UDP

SNMP


222 ALS - MN.00164.E - 001

Fig.144 – OSI+IP protocol stack

Fig.145 – IDU telemetry

AsynchronousRS– 232

PPP

STM–1 DCC– Line sideSTM–1 DCC– Radio sideISO 8802.3(Ethernet LAN)


LAPDQ.921

LAPDQ.921

ISO 8473 ISO 10598 IS– IS

IP / OSPF

TCP/UDP

SNMP


yrtemeleT

sdrawot

etomer

ecafretnI1–

MT

Sx2e

marf

DO

MK

SF

ME

DK

SF

UD

O oTMI

R aiv

niaM

rellortnoc/

TC

ST

CL S

(2.2

)

71z

HM

5z

HM

ALS - MN.00164.E - 001 223

Fig.146 – IDU loops

DO

MM

AQ

033

041

ME

DM

AQ

ro 1–M

TSx1

1–M

TSx2

XU

M

ro 1–M

TSx1

1–M

TSx2

XU

M

IDU

SD

H C

om

pac

t

BB

pool

UDI

pooleniLpool

meR

pool enil

ot p u1–

MT

Sx2

ot pu1–

MT

Sx2

zH

M 033

zH

M 04 1

to/f

rom

OD

U

224 ALS - MN.00164.E - 001

1 STM1-1 output (optical or electrical plug-in)

2 STM1-1 input (optical or electrical plug-in)

3 STM1-2 output (optical or electrical plug-in)

4 STM1-2 input (optical or electrical plug-in)

5 2xE1 (1, 2) wayside

6 ETH1 (RJ45) connector

7 ETH2 (RJ45) connector

8 V11 (RJ45) connector

9 RS232 (RJ45) connector

10 LCT (USB) connector

11 (SUB-D 9) 2 user in, 1 user out console

12 3,15 A 250V delayed fuse 5 ∅ 20 mm miniature

13 SUB-D 3W3 power supply connector

14 IDU-ODU cable SMA connector

15 Led Test (yellow)

16 ODU alarm Led (red)

17 IDU alarm Led (red)

18 Led On (green)

Fig.147 - Front panel of IDU SDH compact

LCT

+ -

IDUON

ODUTEST

USER IN/OUT

RS232V11

Q3/1 Q3/2

1

2

21

2Mb/s WAY SIDE

STM1-2STM1-1

1514131211101 2 3 4 5 6 7

8 9

18

16 17

ALS - MN.00164.E - 001 225

27 ODU AS DESCRIPTION

27.1 GENERAL

The ODU (refer to Fig.148) consists of a two shell aluminium structure, one shell housing all the circuits,the other forming the covering plate.

On the ODU there are:

• the “N” type connector for cable interfacing IDU and ODU

• the “BNC” connector for connection to a multimeter with the purpose to measure the received fieldstrength

• a ground bolt.

The 1+1 hot stand–by version (refer to Fig.149) consist of two ODUs mechanically secured to a structurehousing the hybrid (for 1+1 hot stand-by configuration) or the circulator (for 1+1 frequency diversity con-figuration) for the antenna connection.

27.2 TRANSMIT SECTION

Refer to block diagram shown in Fig.150.

The 330 MHz QAM modulated carrier from the cable interface (see chapter 27.4 CABLE INTERFACE) is for-warded to a mixer passing through a cable equalizer for cable loss compensation up to 40 dB. The mixerand the following bandpass filter give rise to a second IF Tx carrier the frequency of which depends on thego/return frequency value.

The IF Tx frequency is µP controlled. Same happens to Rx IF and RF local oscillators. This latter is commonto both Tx and Rx sides.

The IF carrier is converted to RF and then amplified making use of MMIC circuits.

The power at the MMIC output can be manually attenuated via software.

The automatic adjustment is performed making use of an ATPC (see paragraph 27.5 ATPC OPERATION fordetails).

The regulated output power is kept constant by a detector diode and a feedback including the AGC. RF Txsignal is injected in Tx section of the duplexer.

The Loop RF circuits permit the conversion of the RF Tx signal to Rx frequency of the terminal. In this wayit is possible to control the total local radio terminal performance.

27.3 RECEIVE SECTION

The RF signal coming from the Rx bandpass filter of the duplexer is sent to a low noise amplifier that am-plify it to low NF. The following down–converter translates the RF frequency to IF Rx frequency.

226 ALS - MN.00164.E - 001

A second down converter converts this signal to 140 MHz IF frequency. The output level of this signal iskept constant to –5 dBm thank to the IF amplifier stages, AGC circuit controlled. Inside the IF Rx chainthere are filters that give Rx selectivity. In addition the AGC gives a measure of the receive RF level.


The cable interface permits to interface the cable interconnecting IDU to ODU and viceversa.

It receives/transmits the following signals:

• 330 MHz (from IDU to ODU)

• 140 MHz (from ODU to IDU)

• 17.5 MHz (from IDU to ODU)

• 5.5 MHz (from ODU to IDU)

• remote power supply.

The 17.5 MHz (IDU -> ODU) and 5.2 MHz (ODU -> IDU) FSK modulated carriers, carry the telemetry chan-nel. This latter consists of two 388 kbit/s streams one from IDU to ODU with the information to managethe ODU (RF power, RF frequency, capacity, etc...) while the other, from ODU to IDU, sends back to IDUmeasurements and alarms of the ODU. The ODU management is made by a µP.

27.5 ATPC OPERATION

The ATPC regulates the RF output power of the local transmitter depending on the value of the RF levelthat joins the remote terminal. This value has to be preset from the local terminal as threshold high andlow. The difference between the two thresholds must be equal or higher than 3 dB.

As soon as the received level crosses the preset threshold level low (see Fig.151) due to the increase ofthe hop attenuation, a microP at the received side of the remote terminal sends back to the local terminala control to increase the transmitted power. The maximum ATPC range is 40 dB.

If the hop attenuation decreases and the threshold high is crossed then the control sent by the microPcauses the output power to decrease.

27.6 1+1 HOT STAND-BY AND FREQUENCY DIVERSITY Tx SYSTEM

The following 1+1 configurations are available:

• 1+1 hot stand-by, realized by 2 ODUs coupled by a mechanical support with one hybrid inside. Hy-brid can be balanced or unbalanced.

• 1+1 frequency diversity, realized by 2 ODUs coupled by a mechanical support with a circulator in-side.

The two ODUs are coupled to the antenna side via a balanced or unbalanced hybrid/circulator.

ALS - MN.00164.E - 001 227

27.7 POWER SUPPLY

The battery voltage is dropped from the cable interface and then sent to a DC/DC converter to generatestabilized output voltages used by the ODU circuitry:

Each voltage is protected against overcurrent with automatic restart.

Protection against overvoltage occurs as soon as the output voltage raises more than 15% respect to thenominal voltage. The restart is automatic.

27.8 FREQUENCY REUSE

The frequency reuse system makes use of an XPIC circuit (Cross Polar Interference Canceller) and allowsthe coexistence of two radio bearer transmission on the same RF channel. Each radio bearer carries anindividual STM–1 or 2xSTM–1.

The system consists of two fully independent transceivers, and a crosspolarized antenna with polarizationH connected to one transceiver and polarization V connected to the other transceiver.

The initial co–channel interference is featured by the antenna cross polar discrimination factor (example29 dB). This value may be not sufficient for frequency reuse system making use of modulations ≥ of32QAM.

After all, it may be impaired by the propagation condition giving rise to a BER degradation. To get a suitablediscrimination value, an adaptive canceller, based on a fully numeric adaptive coefficient filter, must beused.

As shown in Fig.152, the received signals at the IF receiver outputs are processed by the demodulatorplaced on the copolar branch as well as by the canceller annexed to the demodulator processing the signalsfrom the cross polar polarization. This process operates inbase band time domain.

An adaptive equalizer minimizes the intersymbolic interference within the copolar demodulator whereas acircuit similar to the equalizer, processes the signal on the cross route.

Such a signal, summed with the one available at the equalizer output permits the cancelling of the inter-ference contained in the copolar signal.

228 ALS - MN.00164.E - 001

Fig.148 - 1+0 ODU

Fig.149 - 1+1 ODU with branching

ALS - MN.00164.E - 001 229

Fig.150 - ODU block diagram

Cab

lein

terf

ace

Cab

leeq

ual

iz.

DC

DC

Ste

p

up

T

LNA

MM

IC

variab

le b

w

(cap

acity

dep

endin

g)

AG

C

N t

ype

330

MH

z

-48 V

x

PRx

mea

s

140

MH

z140

MH

z

appro

x.765

MH

z

+3.5

V

+6.2

to 8

.2 V

-12 V

AG

C

x

PTx

att.

co

ntr

ol

0 t

o 4

0 d

B

IF

LO

unit

MO

D

5.5

M

Hz

REC

17.5

M

Hz

DEM

17.5

M

Hz

MU

X

DEM

UX

388

kbit/s

Ala

rmm

anag

&

co

ntr

ol

Alm

com

mlo

ops

5.5

M

Hz

17.5

M

Hz

388

kbit/s

IF T

x

ante

nna

side

INV

BN

C

PRx

mea

s.

ctrl

RF

LO

unit Rx

Tx

RF

loop

ctrl

ctrl

ctrl

Rx

Tx

230 ALS - MN.00164.E - 001

Fig.151 - ATPC operation

Fig.152 - Frequency reuse system

Thresh High

Thresh Low

Hop attenuation (dB)

20 dBATPC range

PTx max.

PTx min.

Remote PRxdBm

Local PTxdBm

Hop attenuation (dB)

Tx

Rx

Rx

Tx

PTx actuation

Local Remote

PRx recording

Transmission

of PTx control

μP μPlevel

PTx control

+

+

Rx1

Rx2

V

H

IF

IF

DEM

DEM

XPIC

XPIC

RIM1

RIM2

H data

V data

ALS - MN.00164.E - 001 231

28 ODU ALS DESCRIPTION

28.1 GENERAL

Refer to Fig.153.

The ODU mechanical structure consists of two aluminium shells that contain respectively the active circuitsand the branching filter.

It is the electrical interface with the radiant system and the coaxial cable connected to the indoor unit(IDU).

The IDU–ODU cable connection is realised by a “N” type connector.

In the 1+1 versions there are two “N” connectors available.

A BNC connector is also available for the measurement of the received field by means of a multimeter.

The ODU is available in the 1+0 version or in the 1+1 version.

The subdivision of active circuits into the transceiver and passive circuits into the branching has allowedthe execution of a mechanical structure that makes easier the maintenance operations.

Two knobs and two fast coupling levers permit to remove the faulty transceiver and replace it with spare.

One handle makes the transceiver transport easier.

28.2 TRANSMITTER SECTION


The modulated signal at 330 MHz intermediate frequency dropped from cable interface (see chapter 28.4CABLE INTERFACE) is forwarded to a mixer in order to translate it to a new IF frequency by beating withan IF local oscillator.

The value of this IF frequency depends on the RF channelling.

The frequency conversion from IF to the RF operating band is enabled through an SHP (Sub HarmonicPumped) mixer.

This latter is fed by a VCO (RF LO), common also to the receive section.

At the mixer output, it is positioned a filter with metallic insert (E–plane metal insert filter). Such a filterprovides the selection of the useful band and the erasing of the spurious signals coming from the mixer.

The signal at the filter output is forwarded to a power amplifier the gain of which is controlled by an ATPCcircuit (if enabled) or manually controlled. The ATPC range is from 0 to 20 dB, 1 dB step.

ATPC function is managed by the main controller present in the IDU and it is particularly useful to reducethe possible interference generation.

232 ALS - MN.00164.E - 001

28.3 RECEIVER SECTION


The signal coming from the branching is forwarded to a low noise amplifier. This operation allows to reducethe noise factor of the whole receiver.

Then the signal is sent to a variable amplifier with the aim to limit the intermodulation in the followingsteps.

At the output, a pre–conversion filter with metallic insert (E–plane metal insert filter) is positioned. Sucha filter provides eliminating all the signals out of the receiving band.

The reception mixer is a SHP (Sub Harmonic Pumped) type one. It allows to convert the received signalfrom RF band to IF Rx frequency making use of RFLO oscillator.

At the mixer output, the signal is sent to a dielectric resonator filter to select the useful band and to elim-inate mixer spurious signals.

A second down conversion translates the IF Rx signal frequency to 140 MHz. At the mixer output, one filtershapes the passband for STM–1 or 2xSTM–1 signal.

This filter is realised by means of SAW technique to ensure high attenuations out of band.

An AGC (Automatic Gain Control) circuit regulates the received signal at an output constant level before tobe sent to the cable interface.


The cable interface unit permits to interface the cable interconnecting IDU to ODU and viceversa. It re-ceives/transmits the following signals (see Fig.159):

• 330 MHz (from IDU to ODU)

• 140 MHz (from ODU to IDU)

• 17,5 MHz (from IDU to ODU)

• 5,5 MHz (from ODU to IDU)

• remote power supply.

The 17.5 MHz and 5,5 MHz carriers, carry the telemetry channel. This latter consists of two 388 kbit/sstreams one from IDU to ODU with the information to manage the ODU (RF power, frequency, capacityetc...) while the other, from ODU to IDU, sends back to IDU measurements and alarms of the ODU.

A Mux/Demux and an alarm/management & control µP complete the telemetry channel.

28.4.1 Power supply

The cable interface unit manages the remote power supply VTAL for the outdoor unit provided through theinterconnecting cable coming from indoor unit. Refer to Fig.154.

This voltage is sent to two DC/DC converters, inserted into the power supply unit, to obtain the –12 V and+12 V stabilised voltages. The +12 V is sent to another DC/DC converter to obtain the stabilised voltage+5 V. These three outputs (+12 V, –12 V, +5 V) supply the whole transceiver.

Each voltage has overcurrent protection (Overcurrent prot) to disable the relevant converter.

The Alarm Detector block generates an alarm (PSU AL) due to undervoltage, if at least one of these volt-ages drops under the fixed threshold.

The unit provides also an interrupt command for the +5 V and +12 V outputs if the output voltage –12 Vis missing. This prevents the devices in the power amplifier stage from reaching their saturation current.

ALS - MN.00164.E - 001 233

28.5 BRANCHING UNIT

The branching unit allows coupling the antenna to the transmitting side and to the receiving one.

The branching mainly consists of one filter fro the transmission and another filter for the reception, coupledat the antenna port by means of a duplexer.

At Tx side an optional attenuator permits to lower the output power by 0/20 dB via software. The attenu-ator is placed in the transceiver for 38 GHz version only.

The branching unit is available in the following versions:

• 1+0 (see Fig.155)

• 1+1, hot stand–by 1 antenna with RF relay (see Fig.156)

This configuration is used up to 26 GHz.

• 1+1, hot stand–by 1 antenna with hybrid (see Fig.157)

This configuration is used from 28 GHz up to 38 GHz.

• 1+1 frequency diversity (see Fig.158).

1+1 hot stand–by version, comprises an electromechanical RF relay in Tx side for transmitter selection anda splitter in Rx side. Two 0/50 dB attenuators can be used in alternative to the electromechanic selectorswitch (see Fig.157). In this case the two 0/50 dB attenuators take place in the transceivers.

Controls for transmitter selection to be coupled to the antenna are from main controller within the LIM. Itprocesses the switching criteria according to the following priority:

Tab.30 - Switching criteria priority

28.6 ATPC

The automatic transmit power control function (ATPC) is available in the equipment as a standard feature.The range is 20 dB implemented in 1 dB step. ATPC allows to improve the system performance.

The most important impacts are:

• interference reduction;

• power consumption reduction in nominal propagation condition.

The ATPC functional block diagram is shown in Fig.160.

West side

The value of the received Rx power is extracted inside ODU Rx section and then transmitted to RIM makinguse of a 388 kbit/s frame forwarded through a 5,5 MHz carrier.

Such a value is then inserted into the RFCOH frame to be sent to remote terminal.

Priority Level Definition

From highest to lowest

1 Power supply alarm

2 Local manual forcing

3 Cable open/Cable short

4 ODU failure/modulator failure

5 ATPC out of order

6 Preferential branch presetting

234 ALS - MN.00164.E - 001

East side

The remote terminal drops from the RFCOH frame the PRx information and then sends it to the ODUthrough a 388 kbit/s frame forwarded by a 17,5 MHz carrier.

The value of the transmitted power is regulated by the ATPC processor circuit.

28.7 RF LOOP (OPTION)

The RF loop is realised inside the transceiver before the branching, routing the transmitted signal to thereceiver (see Fig.154).

To avoid interference, the far RF transmitter is automatically switched–off during the RF loop activity.

The transmission signal is dropped from the transmitter by means of a coupler.

Upon receiving a control from SCT/NMS5UX programs a shift oscillator is switched–on thus generating theTx/Rx separation frequency signal.

This latter is sent to one mixer along with the Tx signal.

The beating between the two permits to convert the Tx frequency to Rx and then to convoy the Rx fre-quency to the Rx side through a coupler.

Warning

If RF loop is enabled on the remote terminal then the loop must be timed–out to avoid a permanent lossof connection with the remote terminal.

Time–out presetting is performed by SCT/LCT or NMS5UX programs (for details see relevant documenta-tion).

The RF loop must be enabled on one terminal at the time. In case of 1+1, Tx and Rx branches must beforced on the looped branch.

RF loop can be checked only at max PTX. If ATPC is active verify output power or disable ATPC and set PTxat maximum values.

28.8 FREQUENCY REUSE

The frequency reuse system makes use of an Xpic circuit (Cross Polar Interference Canceller) and allowsthe coexistence of two radio bearer transmission on the same RF channel. Each radio bearer carries anindividual STM–1 or 2xSTM–1.

The system consists of two fully independent transceivers, and a crosspolarized antenna with polarizationH connected to one transceiver and polarization V connected to the other transceiver.

The initial co–channel interference is featured by the antenna cross polar discrimination factor (example29 dB). This value may be not sufficient for frequency reuse system making use of modulations ≥ 32QAM.

After all, it may be impaired by the propagation condition giving rise to a BER degradation. To get a suitablediscrimination value, an adaptive canceller, based on a fully numeric adaptive coefficient filter, must beused.

As shown in Fig.161, the received signals at the IF receiver outputs are processed by the demodulatorplaced on the copolar branch as well as by the canceller annexed to the demodulator processing the signalsfrom the cross polar polarization. This process operates in base band time domain.

An adaptive equalizer minimizes the intersymbolic interference within the copolar demodulator whereas acircuit similar to the equalizer, processes the signal on the cross route.

Such a signal, summed with the one available at the equalizer output permits the cancelling of the inter-ference contained in the copolar signal.

ALS - MN.00164.E - 001 235

Fig.153 - Lower view of the ODU 1+1 and ODU 1+0 units

Transceivers

BNC connectorsfor PRx measuerment

N connectorsfor IDU cable

Branching

BNC connectorfor PRx measurement

N connectorfor IDU cable

Branching

Transceiver

236 ALS - MN.00164.E - 001

Fig.154 - Block diagram of the ODU

Shifte

r

from

μP

AG

C

LNA

140

MH

z

PRx

IF R

x

IF T

x

IF R

x

IF T

x

RF

from

bra

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ing

RF

to b

ranch

ing

da

μP

ATPC

140 MHz

330 M

Hz

MO

D5.5

MH

z

REC

17.5

MH

z

DEM

17.5

MH

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UX

Ala

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5.5

MH

z388 k

bit/s

388 k

bit/s

Ala

rmco

mm

ands

loops

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LO

12.5

MH

z

Ove

rcurr

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U A

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ALS - MN.00164.E - 001 237

Fig.155 - 1+0 branching

Fig.156 - 1+1 hot stand–by branching, 1 antenna (RF relay version)

Rx

Tx

Antennaside

to/fromtransceiver

Duplexer

From Tx1

Antenna

From Tx2

To Rx1

To Rx2

Switchingcontrol

238 ALS - MN.00164.E - 001

Fig.157 - Branching 1+1 hot stand–by, 1 antenna (version with hybrid)

Rx1

Tx1

Antennaside

Rx2

Tx2

Switchingcommand

from μP

Switchingcommand

from μP

T0/50 dB

T50/0 dB

Branching side

ALS - MN.00164.E - 001 239

Fig.158 - 1+1 branching frequency diversity

Fig.159 - Signals present on the IDU–ODU coaxial cable

T0/20 dB optional

command

T0/20 dB optional

command

from

A

from

A

48 Vdc

330 MHz140 MHz17.5 MHz5.5 MHz

RxTelemeteringfrom IDUto ODU

TxTelemiteringfrom ODUto IDU Rx signal Tx signal

240 ALS - MN.00164.E - 001

Fig.160 - ATPC functional block diagram

Fig.161 - Frequency reuse system

BRANCHING

Tx

Rx

BRANCHING

Rx

Tx

RFCOH MOD

PRx meas.

STM-1RFCOHDEM

PRx meas.

ATPC

RIMRIM

ODUODU

West side East side

+

+

Rx1

Rx2

V

H

IF

IF

DEM

DEM

XPIC

XPIC

RIM1

RIM2

data H

data V

ALS - MN.00164.E - 001 241

Section 5.COMPOSITION

29 IDU COMPOSITION

29.1 GENERAL

IDU SDH consists of the following versions:

• IDU SDH modular

• IDU SDH compact

Each module is available in different versions and is composed of various subunits.

Warning: Modules mentioned in this document are those that, following a failure, are considered as re-placeable parts.

29.2 COMPOSITION OF IDU SDH MODULAR

The IDU consists of LIM/RIM/CONTROLLER modules made-up in different versions. Each module is identi-fied through a label (see Fig.162) placed inside indicating the correspondent P/N. The P/Ns are the follow-ing:

- LIM D12091 capacity 2xSTM-1 electrical interfaceD12092 capacity 4xSTM-1 electrical interfaceD12106-02 capacity 2xSTM-1 electrical/optical interface without plug-inD12107-02 capacity 4xSTM-1 electrical/optical interface without plug-in

- E01409 plug-in module with Laser S11 interface

- S04002 plug-in module with electrical STM-1 interface and 1.0/2.3 connector

- RIM D16027 (with Xpic)D16026 (without Xpic)

- CONTROLLER D12078 option RJ45

242 ALS - MN.00164.E - 001

Fig.162 - IDU P/N

29.3 COMPOSITION OF IDU SDH COMPACT

IDU is available in different versions; each of them is identified by a part number code.

A label, on the top left side of IDU mechanical structure contains this part number.

The available versions are:

- IDU 1+0 2xSTM-1 electrical interface GD0366

- IDU 1+0 2xSTM-1 optical interface GD0367.

ALS IDU

ALS-C IDU

ALS - MN.00164.E - 001 243

30 ODU COMPOSITION

30.1 GENERAL

SDH ODU is available in ALS and AS versions.

30.2 ODU AS COMPOSITION

The ODU AS consists of mechanical structure formed by two shells. One shell houses the transceiver mod-ule, the other houses the branching module.

Both the transceiver and the branching are available in different versions depending on the operating band,the antenna configuration, the channel filters etc.....

To the purpose on the branching mechanical structure is available a label showing the ODU most significantparameters and the P/N of the whole unit. Fig.163 shows label position whereas Fig.164 shows a typicalexample of the parameters evidenced by the label.

Fig.163 - Label positions - ODU AS

ODU serial nr. plate

ODU type plate (see next figure)

244 ALS - MN.00164.E - 001

Fig.164 - Equipment most significant data

30.3 ALS ODU COMPOSITION

IDU is made up of a mechanical structure consisting of two cases. One case houses the transceiver moduleand the other houses the branching module.

Both transceiver and branching are available in different versions depending on the operating band, an-tenna configuration, channel filters, etc....

On branching mechanical structure a label is provided; it shows the most important ODU parameters andthe part number of the whole unit.

AS ODU

ALS ODU

ALS - MN.00164.E - 001 245

Fig.165 - Label positions - ODU ALS

Branching

Branching

Transceiver

P/N transceiver label

Transceiver

P/N transceiver label

P/N ODU position

P/N ODU position

246 ALS - MN.00164.E - 001

ALS - MN.00164.E - 001 247

Section 6.SAFETY RULES AND EQUIP-MENT DISPOSAL

31 FIRST AID FOR ELECTRICALSHOCK AND SAFETY RULES

31.1 FIRST AID FOR ELECTRICAL SHOCK

Do not touch the patient with bare hands until the circuit has been opened. Open the circuit by switch-ing off the line switches. If that is not possible protect yourself with dry material and free the patientfrom the conductor.

31.1.1 Artificial respiration

It is important to start mouth resuscitation at once and to call a doctor immediately. suggested procedurefor mouth to mouth resuscitation method is described in the Tab.31.

31.1.2 Treatment of burns

This treatment should be used after the patient has regained consciousness. It can also be employed whileartificial respiration is being applied (in this case there should be at least two persons present).

Warning

• Do not attempt to remove clothing from burnt sections.

• Apply dry gauze on the burns.

• Do not apply ointments or other oily substances.

248 ALS - MN.00164.E - 001

Tab.31 - Artificial breathing

Phase Description Figure

1

Lay the patient on his back with his arms parallel to the body. If the patient is laying on an inclined plane, make sure that his

stomach is slightly lower than his chest. Open the patients mouth and check that there is no foreign matter in mouth

(dentures, chewing gum, etc.).

2

Kneel beside the patient level with his head. Put an hand under the patient’s head and one under his neck.

Lift the patient’s head and let it recline backwards as far as possible.

3

Shift the hand from the patient’s neck to his chin and his mouth, the index along his jawbone, and keep the other fingers

closed together. While performing these operations take a good supply of oxygen by taking deep breaths with your mouth

open.

4

With your thumb between the patient’s chin and mouth keep his lips together and blow into his nasal cavities.

5

While performing these operations observe if the patient’s chest rises. If not it is possible that his nose is blocked: in that case open the patient’s mouth as much as possible by pressing on his chin with your hand, place your lips around his mouth and blow into his oral cavity. Observe if the patient’s chest heaves. This second method can be used instead of the first even when the patient’s nose is not obstructed, provided his

nose is kept closed by pressing the no strils together using the hand you were holding his head with. The patient’s head must

be kept sloping backwards as much as possible.

6

Start with ten rapid expirations, hence continue at a rate of twelve/fifteen expirations per minute. Go on like this until the patient has regained consciousness, or until a doctor has as-

certained his death.

ALS - MN.00164.E - 001 249

31.2 SAFETY RULES

When the equipment units are provided with the plate, shown in Fig.166, it means that they contain com-ponents electrostatic charge sensitive.

Fig.166 - Indication of components sensitive to electrostatic charges

In order to prevent the units from being damaged while handling, it is advisable to wear an elasticised band(Fig.167) around the wrist ground connected through coiled cord (Fig.168).

Fig.167 - Elasticised band

Fig.168 - Dedicated cord

The units showing the label, shown in Fig.169, include laser diodes and the emitted power can be danger-ous for eyes; avoid exposure in the direction of optical signal emission.

Fig.169 - Laser indication

250 ALS - MN.00164.E - 001

31.3 CORRECT DISPOSAL OF THIS PRODUCT (WasteElectrical & Electronic Equipment)

(Applicable in the European Union and other European countries with separate collection systems). Thismarking shown on the product (see Fig.170) or its literature indicates that it should not be disposed withother household wastes at the end of its working life. To prevent possible harm to the environment or hu-man health from uncontrolled waste disposal, please separate this from other types of wastes and recycleit responsibly to promote the sustainable reuse of material resources. Household users should contact ei-ther the retailer where they purchased this product, or their local government office, for details of whereand how they can take this item for environmentally safe recycling. Business users should contact theirsupplier and check the terms and conditions of the purchase contract. This product should not be mixedwith other commercial wastes for disposal.

Fig.170 - WEEE Symbol – 2002/96/CE EN50419

31.4 INTERNAL BATTERY

Inside the equipment, in IDU unit, there is a lithium battery.

CAUTION: Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteriesaccording to law.

ALS - MN.00164.E - 001 251

32 LIST OF FIGURES

Fig.1 – 1xSTM-1 and 2xSTM-1 unprotected version............................................................ 20

Fig.2 – 1xSTM-1 and 2xSTM-1 protected version ............................................................... 21

Fig.3 – 2xSTM-1, 4xSTM-1 unprotected version with RIM XPIC ............................................ 21

Fig.4 – 4xSTM1 optical interface protected version and RIM XPIC......................................... 22

Fig.5 – 1+0, up to 1xSTM-1 equipment block diagram, with ODU AS.................................... 23

Fig.6 – 1+0, up to 2xSTM-1 equipment block diagram, with ODU AS.................................... 24

Fig.7 – 1+1, up to 2xSTM-1 equipment block diagram, hot stand-by or frequency diversity versions with ODU AS.......................................................................... 25

Fig.8 – 1+0, 4xSTM-1 equipment block diagram, with ODU AS ............................................ 26

Fig.9 – Interconnections for frequency reuse - 1+0 version................................................. 28

Fig.10 – Interconnections for frequency reuse - 1+1 version ............................................... 28

Fig.11 - Grounding connection ........................................................................................ 30

Fig.12 – Typical connector position (IDU ALS) ................................................................... 32

Fig.13 - Connectors position (IDU ALS-C) ......................................................................... 34

Fig.14 - Pin-out Tributary IN/OUT 50 SCSI........................................................................ 35

Fig.15 - Antisliding strip ................................................................................................. 41

Fig.16 - 60–114 mm pole supporting plate fixing ............................................................... 42

Fig.17 - Adapting kit for 219 mm pole .............................................................................. 43

Fig.18 - Possible mounting position.................................................................................. 44

Fig.19 - Possible positions of the support with ODU fast locking mechanism .......................... 45

Fig.20 - Installation onto the pole of the supporting plate ................................................... 46

Fig.21 - Circulator for 1+1 frequency diversity systems ...................................................... 47

Fig.22 - Band-it pole fixing ............................................................................................. 48

Fig.23 - ODU reference tooth .......................................................................................... 48

Fig.24 - Final ODU assembly of 1+1 hot stand-by version ................................................... 49

Fig.25 - Final assembly of 1+1 frequency diversity system.................................................. 50

Fig.26 - ODU grounding ................................................................................................. 51

Fig.27 - Wall supporting plate ......................................................................................... 55

Fig.28 - Support with ODU fast locking mechanism ............................................................ 56

Fig.29 - Possible mounting positions ................................................................................ 57

Fig.30 - Installation onto the wall of the supporting plate.................................................... 58

Fig.31 - Circulator of 1+1 frequency diversity system......................................................... 59

Fig.32 - Position of the ODU body:1+0 system - depending on the polarisation.1+1 hot stand-by system - polarisation is always vertical (handle always at the left side)1+1 frequency diversity system - polarisation is always horizontal (handle always at the right side) 60

Fig.33 - ODU body reference tooth .................................................................................. 60

252 ALS - MN.00164.E - 001

Fig.34 - Final assembly of 1+1 hot stand-by version .......................................................... 61

Fig.35 - Final assembly of 1+1 frequency diversity version.................................................. 62


Fig.37 - Centering ring position ....................................................................................... 68

Fig.38 - Antislide strip.................................................................................................... 69

Fig.39 - Support mount on pole....................................................................................... 70

Fig.40 - Supporting system position................................................................................. 71

Fig.41 - Hole E.............................................................................................................. 71

Fig.42 - Antenna installation on pole support..................................................................... 72

Fig.43 - Position of the ODU handle depending on the polarisation for 1+0. For 1+1 the polarisation is always horizontal. Handle at the right side...................................................................... 72

Fig.44 - Support system for ODU housing and reference tooth in evidence ............................ 73


Fig.46 - ODU housing final position for vertical polarization ................................................. 74

Fig.47 - ODU housing final position for horizontal polarization.............................................. 75

Fig.48 - Hybrid and polarization disk ................................................................................ 76

Fig.49 - Circulator and polarization disk............................................................................ 77

Fig.50 - Fixing of the polarization disk (only for 13 GHz and 15 GHz).................................... 78

Fig.51 - Hybrid mount on pole support ............................................................................. 79

Fig.52 - ODU final position for 1+1 version ....................................................................... 80

Fig.53 - Final ODU assembly of 1+1 frequency diversity version .......................................... 80

Fig.54 - Vertical and horizontal adjustments ..................................................................... 81

Fig.55 - Antenna aiming block......................................................................................... 82


Fig.57 - 1+0 pole mounting ............................................................................................ 88


Fig.59 - Position of the ODU body:1+0 system - depending on the polarisation.1+1 hot stand-by system - polarisation is always horizontal (handle always at the right side)1+1 frequency diversity system - polarisation is always vertical (handle always at the left side) 89

Fig.60 - 1+0 support ..................................................................................................... 90

Fig.61 - ODU final position.............................................................................................. 91

Fig.62 - Antenna aiming................................................................................................. 91


Fig.64 - Hybrid and polarization disk ................................................................................ 93

Fig.65 - Circulator and polarisation disk............................................................................ 94

Fig.66 - Fixing of the polarization disk (only for 13 GHz and 15 GHz).................................... 95

Fig.67 - Hybrid/circulator installation ............................................................................... 96

Fig.68 - Installation of 1+1 hot stand-by ODUs.................................................................. 97

Fig.69 - Installation of 1+1 frequency diversity ODUs......................................................... 97

Fig.70 - ODU 1+1 and 1+0........................................................................................... 100

Fig.71 - ODU 1+0 and 1+1........................................................................................... 101

Fig.72 - Collar mounting ODU 1+0 and 1+1.................................................................... 102

Fig.73 - Side view (1+1) .............................................................................................. 103

ALS - MN.00164.E - 001 253

Fig.74 - Rear view (1+1).............................................................................................. 103

Fig.75 - Side view (1+0) .............................................................................................. 104

Fig.76 - Rear view (1+0).............................................................................................. 104

Fig.77 - Details for transceiver mounting on the branching shell ........................................ 105

Fig.78 - Antenna bend ................................................................................................. 105

Fig.79 - ODU installation (top view and front view) .......................................................... 106

Fig.80 - Grounding cord connection ............................................................................... 106

Fig.81 - Wave guide fixing, cable connection ................................................................... 107

Fig.82 - Installation on pole of the outdoor unit (1+0)...................................................... 108

Fig.83 - Installation on pole of 3 m antenna of two ODU using two polarization.................... 109

Fig.84 - Sun–screen .................................................................................................... 109

Fig.85 - Checking the antenna polarisation ..................................................................... 112

Fig.86 - Rear view of the antenna.................................................................................. 113

Fig.87 - Pole supporting kit........................................................................................... 114

Fig.88 - Supporting bracket mounting on the antenna rear side ......................................... 115

Fig.89 - Supporting bracket mounting ............................................................................ 116

Fig.90 - Antenna fixing to the pole................................................................................. 117

Fig.91 - Alignment adjustment kit mounting ................................................................... 118

Fig.92 - 1+1 branching mounting on supporting bracket................................................... 119

Fig.93 - 1+0 branching mounting on supporting bracket................................................... 120

Fig.94 - ODU mounting in 1+1 configuration ................................................................... 121

Fig.95 - ODU mounting in 1+0 configuration ................................................................... 122

Fig.96 - Horizontal alignment adjustment ....................................................................... 123

Fig.97 - Vertical alignment adjustment........................................................................... 124

Fig.98 - Outdoor unit with covering................................................................................ 125

Fig.99 - Checking the antenna alignment........................................................................ 126

Fig.100 - IDU-ODU cables ............................................................................................ 128


Fig.102 - XPIC SMA to SMA cables................................................................................. 128

Fig.103 - XPIC SMA to SMA cables................................................................................. 128



Fig.106 – Connection cables ......................................................................................... 131

Fig.107 – Connection cables ......................................................................................... 131

Fig.108 - Substitution of ODU in 1+1 frequency diversity system....................................... 133

Fig.109 – Decoupling verify - Step 1 .............................................................................. 139

Fig.110 - LAN1 port configuration on local and on remote equipment ................................. 150

Fig.111 - Internal port configuration on local and on remote equipment.............................. 151

Fig.112 - –VLAN table for transmission of two LANs segregated between them ................... 152

Fig.113 – Download setup window for equipment controller application download ................ 168

Fig.114 – Confirm of the operation ................................................................................ 168

Fig.115 – Download progress ........................................................................................ 168

Fig.116 – Equipment software version window ................................................................ 169

254 ALS - MN.00164.E - 001

Fig.117 – Radio switch window...................................................................................... 171

Fig.118 – Example of channel arrangements on the same route......................................... 178

Fig.119 - LIM Ethernet block diagram............................................................................ 191

Fig.120 - LIM block diagram, RST mode - 2x2STM-1 version - from radio side to line side ..... 192

Fig.121 - LIM - 4xSTM-1 mode...................................................................................... 192

Fig.122 – RIM with XPIC into 1RU IDU ALS ..................................................................... 197

Fig.123 – LIM block diagram, RST mode - 1xSTM-1 operation ........................................... 206

Fig.124 – LIM block diagram, RST operation mode - 2xSTM-1 operation mode - from line side to radio side.................................................................................................................... 207

Fig.125 – LIM block diagram, RST operation mode - 2xSTM-1 version - from radio side to line side 208

Fig.126 – LIM - 4xSTM-1 operation mode ....................................................................... 208

Fig.127 – Synchronisation block diagram........................................................................ 209

Fig.128 – Modemodulator block diagram ........................................................................ 210

Fig.129 – Frequency reuse system arrangement.............................................................. 211

Fig.130 – Power supply and cable interface block diagram ................................................ 211

Fig.131 – Main and peripheral controller connection ......................................................... 212

Fig.132 – Full-IP protocol stack ..................................................................................... 212

Fig.133 – OSI+IP protocol stack.................................................................................... 213

Fig.134 – IDU telemetry............................................................................................... 213

Fig.135 – IDU loops..................................................................................................... 214

Fig.136 - Front panel of SDH IDU modular ...................................................................... 215

Fig.137 – Line interface block diagram, RST mode - 1xSTM-1 operation (IDU SDH compact) . 216

Fig.138 – Line interface block diagram, RST operation mode - 2xSTM-1 operation mode - from line side to radio side - IDU SDH compact ............................................................................. 217

Fig.139 – Line interface block diagram, RST operation mode - 2xSTM-1 version - from radio side to line side (IDU SDH compact)...................................................................................... 218

Fig.140 – Modemodulator block diagram ........................................................................ 219

Fig.141 – Power supply and cable interface block diagram ................................................ 220

Fig.142 – Main and peripheral controller connection ......................................................... 221

Fig.143 – Full-IP protocol stack ..................................................................................... 221

Fig.144 – OSI+IP protocol stack.................................................................................... 222

Fig.145 – IDU telemetry............................................................................................... 222

Fig.146 – IDU loops..................................................................................................... 223

Fig.147 - Front panel of IDU SDH compact...................................................................... 224

Fig.148 - 1+0 ODU...................................................................................................... 228

Fig.149 - 1+1 ODU with branching ................................................................................ 228

Fig.150 - ODU block diagram ........................................................................................ 229

Fig.151 - ATPC operation.............................................................................................. 230

Fig.152 - Frequency reuse system ................................................................................. 230

Fig.153 - Lower view of the ODU 1+1 and ODU 1+0 units................................................. 235

Fig.154 - Block diagram of the ODU............................................................................... 236

Fig.155 - 1+0 branching .............................................................................................. 237

Fig.156 - 1+1 hot stand–by branching, 1 antenna (RF relay version).................................. 237

ALS - MN.00164.E - 001 255

Fig.157 - Branching 1+1 hot stand–by, 1 antenna (version with hybrid) ............................. 238

Fig.158 - 1+1 branching frequency diversity ................................................................... 239

Fig.159 - Signals present on the IDU–ODU coaxial cable................................................... 239

Fig.160 - ATPC functional block diagram......................................................................... 240

Fig.161 - Frequency reuse system ................................................................................. 240

Fig.162 - IDU P/N........................................................................................................ 242

Fig.163 - Label positions - ODU AS ................................................................................ 243

Fig.164 - Equipment most significant data ...................................................................... 244

Fig.165 - Label positions - ODU ALS............................................................................... 245

Fig.166 - Indication of components sensitive to electrostatic charges.................................. 249

Fig.167 - Elasticised band............................................................................................. 249

Fig.168 - Dedicated cord .............................................................................................. 249

Fig.169 - Laser indication ............................................................................................. 249

Fig.170 - WEEE Symbol – 2002/96/CE EN50419.............................................................. 250

256 ALS - MN.00164.E - 001

ALS - MN.00164.E - 001 257

33 LIST OF TABLES

Tab.1 - Cable and connector characteristics .......................................................................29

Tab.2 – WS1/WS2 connector pin-out for 2 Mbit/s ...............................................................32

Tab.3 – V11 connector pin-out for 64 kbit/s channel - V.11 interface.....................................32

Tab.4 – User in/out connector pin-out for external alarm input and alarm transfer to outside....33

Tab.5 – RS232 connector pin-out for connection to/from supervision system (modular IDU).....33

Tab.6 – RJ45 connector pin-out for 10BaseT Ethernet connection..........................................33

Tab.7 - Pin out of IDU compact RS232 connector................................................................34

Tab.8 - Tributary IN/OUT - 75 Ohm ..................................................................................35

Tab.9 - Tributary IN/OUT - 120 Ohm ................................................................................36

Tab.10 - Torques for tightening screws..............................................................................39






Tab.16 – Configuration: XPIC 1+0 ..................................................................................140

Tab.17 – Configuration: XPIC, 1+1, Hot stand-by/Hot stand-by, Space Diversity ..................141

Tab.18 – Configuration: XPIC, 1+1, Frequency Diversity/Frequency Diversity, Space Diversity143

Tab.19 - Manual operations and relevant effects on traffic in 1+0 link (ODU AS/ALS) ............153

Tab.20 - Manual operations, relevant effects on traffic in 1+1 Hot stand-by (1 antenna / space di-versity) and preventive actions (ODU ALS): problems in Rx/Tx occur if manual operation is per-formed on the active branch............................................................................................154

Tab.21 - Manual operations, relevant effects on traffic in 1+1 Hot stand-by (1 antenna / space di-versity) and preventive actions (ODU AS): problems in Rx/Tx occur if manual operation is performed on the active branch......................................................................................................155

Tab.22 - Manual operations, relevant effects on traffic in 1+1 Hot stand-by (1 antenna/space di-versity) and preventive actions: problems in Rx/Tx occur if manual operation is performed on active branch.........................................................................................................................156

Tab.23 – System version composition .............................................................................166

Tab.24 – Cable examples ..............................................................................................178

Tab.25 - Tx switch........................................................................................................178

Tab.26 - Rx switch .......................................................................................................179

Tab.27 - Possible optical interfaces .................................................................................181

Tab.28 - Switch characteristics.......................................................................................183

Tab.29 - Service and user interfaces ...............................................................................200

Tab.30 - Switching criteria priority..................................................................................233

Tab.31 - Artificial breathing ...........................................................................................248

258 ALS - MN.00164.E - 001

ALS - MN.00164.E - 001 259

34 ASSISTANCE SERVICE

The assistance service provided by Siae Microelettronica will be in compliance, if stipulated, to what spec-ified in the Agreement of Software Maintenance.

To exploit this service, fill in all its parts the Module for the notification of bad SW operation(RQ.00961) and send it to the following address:

SIAE Microelettronica S.p.Avia Michelangelo Buonarroti, 2120093 Cologno MonzeseMilano - Italywww.siaemic.it

Fax + (39) 02 25391585e-mail [email protected]

34.1 RQ.00961 MODULE

Each RQ916 module can contain at most one signalling.

The information required for the signalling of the bad operation.

Warning. The compiling of the parts General Information (Siae only), Trouble notified by, Reserved to SiaeDepartment and Validation manager are at charge of the Siae personnel.

Section – Trouble Identification

- SIAE product name. Identifier or SIAE code of the product whose bad operation has been detected.

- Version. Version of the sw product whose bad operation has been detected

- Documentation Type. Identifier of the document where the problem has been detected.

- Revision. Revision of the document where the problem has been detected.

- Volume N. Number of the volume of the document where the problem has been detected.

- Page N. Number of the page, into the volume, where the problem has been detected.

- Typology. Severity of the detected bad operation:

- Critical, if it prevents the use of a main functionality of the product;

- Important, if it prevents the use of a secondary functionality of the product;

- Disturbing, if occasionally and in difficultly reproducible conditions, it prevents the use of a mainfunctionality of the product;

- Minor, if very seldom it prevents the use of a secondary functionality without important conse-quences;

- Suggestion, if no functionality of the product is damaged but some aspects (e.g.: user interface)can be improved.

- Recurrent. Possibility (Yes) or not (No) to cause the bad operation after the same sequence of inputsgiven to the product.

- Repeatable. Possibility (Yes) or not (No) to reproduce the detected bad operation.

- Annexes. Possibility (Yes) or not (No) of annexed to the NM and their possible number.

260 ALS - MN.00164.E - 001

- Title. Title of the bad operation.

- Description. Clear and concise description of the bad operation, comprehensive of the edge condi-tions and, when possible and applicable, of the reference to the test (identifier and version of thetechnical documentation, test identifier).

GENERAL INFORMATION (SIAE ONLY)

Object Software Documentation Hardware Number

Submitted Distribution List: Quality Assurance

TROUBLE NOTIFIED BY

Siae Operator Name _______________________________ Date _______________________________

Customer Report Ref. _______________________________ Date _______________________________

Customer Name Reference _______________________________ Tel _______________________________

Company/Dept. _______________________________ e-mail _______________________________

Contract N Address

TROUBLE IDENTIFICATION

SW/FW failures

SIAE product name ___________________________________________________ Version ______

Documentation

Documentation type ___________________________________________________ Revision ______

Volume N. ___________________________________________________

Page N.

Typology Critical Important Disturbing Minor Suggestion

Recurrent Yes No

Repeatable Yes No

Annexes Yes: N° No

Title:Description (including enviranmental conditions):

RESERVED TO SIAE DEPARTMENT

Trouble Accepted_Open

Rejected Reasons

Notes

Analysis performed by Date Expected Closing Date

CORRECTIVE ACTION DESCRIPTION

FIXED Executed by Date Approved by

VALIDATION MANAGER

MN Closed Open

Verified by Date

Notes

Quality Record Module TROUBLE REPORT Issued byTerzo L.

Approved byGaviraghi S.

Date24/09/02

Page1/1

Siae Microelettronica all rights reserved.

Document Ref.RQ.00961

Rev/Ver003

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