tedbs82ii

GERAN

Information

Base Station System

BS-82 II eMicro Technical Description (TED:BSS)

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BS-82 II eMicroTechnical Description (TED:BSS)

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f Important Notice on Product Safety

DANGER - RISK OF ELECTRICAL SHOCK OR DEATH - FOLLOW ALL INSTALLATION INSTRUCTIONS.

The system complies with the standard EN 60950 / IEC 60950. All equipment connected to the system must comply with the applicable safety standards.Hazardous voltages are present at the AC power supply lines in this electrical equipment. Some components may also have high operating temperatures.Failure to observe and follow all installation and safety instructions can result in serious personal injury or property damage.Therefore, only trained and qualified personnel may install and maintain the system.

The same text in German:

Wichtiger Hinweis zur Produktsicherheit

LEBENSGEFAHR - BEACHTEN SIE ALLE INSTALLATIONSHINWEISE.

Das System entspricht den Anforderungen der EN 60950 / IEC 60950. Alle an das System angeschlossenen Geräte müssen die zutreffenden Sicherheitsbestimmungen erfüllen.In diesen Anlagen stehen die Netzversorgungsleitungen unter gefährlicher Spannung. Einige Komponenten können auch eine hohe Betriebstemperatur aufweisen.Nichtbeachtung der Installations- und Sicherheitshinweise kann zu schweren Körperverletzungen oder Sachschäden führen.Deshalb darf nur geschultes und qualifiziertes Personal das System installieren und warten.

Caution:

This equipment has been tested and found to comply with EN 301489. Its class of conformity is defined in table A30808-X3247-X910-*-7618, which is shipped with each product. This class also corresponds to the limits for a Class A digital device, pursuant to part 15 of the FCC Rules.These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accor-dance with the relevant standards referenced in the manual “Guide to Documentation”, may cause harmful inter-ference to radio communications.For system installations it is strictly required to choose all installation sites according to national and local require-ments concerning construction rules and static load capacities of buildings and roofs.For all sites, in particular in residential areas it is mandatory to observe all respectively applicable electromagnetic field / force (EMF) limits. Otherwise harmful personal interference is possible.

Trademarks:

All designations used in this document can be trademarks, the use of which by third parties for their own purposes could violate the rights of their owners.

Copyright (C) Siemens AG 2006

Issued by the Communications GroupHofmannstraße 51D-81359 München

Technical modifications possible.Technical specifications and features are binding only insofar as they are specifically and expressly agreed upon in a written contract.

Copyright (C) Siemens AG 2006

Issued by the Communications GroupHofmannstraße 51D-81359 München

Technical modifications possible.Technical specifications and features are binding only insofar as they are specifically and expressly agreed upon in a written contract.

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Table of ContentsThis document has 67 pages.

Reason for Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91.2 Overview of the Functionality - Main Features of BS-82 II . . . . . . . . . . . . . 101.3 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2 Hardware Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142.1 AC-supplied and DC-supplied Variants of BS-82 II . . . . . . . . . . . . . . . . . . 142.2 Shelter Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152.2.1 Base Shelter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182.2.2 Extension Shelters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3 Module Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233.2 Core Module (COBA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263.3 Carrier Related Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283.3.1 GSM Carrier Unit (GCU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283.3.2 EDGE Carrier Unit (ECU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283.3.3 Flexible Carrier Unit (FlexCU). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293.3.4 Carrier Unit Output Power Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303.4 Antenna Combining Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313.4.1 Duplexer Amplifier Multicoupler (DUAMCO). . . . . . . . . . . . . . . . . . . . . . . . 313.4.2 Flexible Duplexer Amplifier Multicoupler (FDUAMCO) . . . . . . . . . . . . . . . . 323.4.3 Dual Integrated Amplifier Multicoupler (DIAMCO) . . . . . . . . . . . . . . . . . . . 323.4.4 Tower Mounted Amplifier (TMA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333.5 Power Supply Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343.5.1 AC/DC System and Backup Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343.5.2 AC Input Lightning Protection (ACPROTECT) . . . . . . . . . . . . . . . . . . . . . . 353.5.3 DC Module (DCM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353.5.4 DC and Battery Controller (DCBCTRLM) . . . . . . . . . . . . . . . . . . . . . . . . . . 363.5.5 DC Panel (DCP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363.6 Overvoltage Protection and Tracer (OVPT) . . . . . . . . . . . . . . . . . . . . . . . . 373.7 Abis Connection (ABISCON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383.8 Abis Link Equipment (LE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383.9 Fan Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383.10 Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393.11 Membrane Filter (MEF). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393.12 Dust Filter (DUSTFILM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

4 Antenna Combining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404.1 Functionality of Combining Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404.1.1 FDUAMCO / DUAMCO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404.1.1.1 DUAMCO Specials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424.1.1.2 FDUAMCO Specials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 434.1.2 DIAMCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

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4.1.3 TMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 484.1.4 Diplexer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504.2 Combiner Losses (TX Path). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

5 Cell Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 525.1 Examples of Possible Cell Configurations in the BTSE . . . . . . . . . . . . . . . . 525.2 Dual Band Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

6 FCC Issues (for U.S. Market only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

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List of FiguresFigure 1 Shelter - AC-supplied, Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Figure 2 Shelter - DC-supplied, Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Figure 3 Base Shelter with two Extension Shelters . . . . . . . . . . . . . . . . . . . . . . . 18Figure 4 Block Diagram of the Base Shelter (AC-supplied) . . . . . . . . . . . . . . . . . 19Figure 5 Block Diagram of the Base Shelter (DC-supplied). . . . . . . . . . . . . . . . . 20Figure 6 Block Diagram of the Extension Shelter (AC-supplied) . . . . . . . . . . . . . 21Figure 7 Block Diagram of the Extension Shelter (DC-supplied) . . . . . . . . . . . . . 22Figure 8 Connection of the COBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Figure 9 FlexCU – Double TRX Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Figure 10 FlexCU – Single TRX Mode – Fourfold Receive Diversity Mode. . . . . . 30Figure 11 ABISCON and OVPT (100/120 Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Figure 12 DUAMCO 2:2 Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42Figure 13 DUAMCO 4:2 Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43Figure 14 FDUAMCO Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Figure 15 DIAMCO Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Figure 16 TMA (Single) Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Figure 17 TMA (Dual) Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Figure 18 Configuration with Diplexer (Example). . . . . . . . . . . . . . . . . . . . . . . . . . 50Figure 19 Cell Configurations with a single Base Shelter (Examples) . . . . . . . . . . 54Figure 20 Cell Configuration 2/1/1 Base Shelter and one Extension Shelter. . . . . 54Figure 21 Cell Configuration 2/2/2 with Base and two Extension Shelters . . . . . . 55Figure 22 Cell Configuration 3/3/0 with Base and two Extension Shelters . . . . . . 55Figure 23 Cell Configuration 6/0/0 with Base and two Extension Shelters . . . . . . 55Figure 24 Cell Configuration for 1 cell 4/0/0 with 2 FlexCUs . . . . . . . . . . . . . . . . . 56Figure 25 Cell Configuration for 2 cells 1/1/0 with 1 FlexCU . . . . . . . . . . . . . . . . . 57Figure 26 Cell Configuration for 2 cells 2/2/0 with 2 FlexCUs - Variant A . . . . . . . 58Figure 27 Cell Configuration for 2 cells 2/2/0 with 2 FlexCUs - Variant B . . . . . . . 59Figure 28 Dual Band Configurations (1/1/0 Examples) . . . . . . . . . . . . . . . . . . . . . 60Figure 29 Dual Band Configurations (2/0/0 Examples) . . . . . . . . . . . . . . . . . . . . . 61

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List of TablesTable 1 Functionality in Different SBS Releases . . . . . . . . . . . . . . . . . . . . . . . . . 11Table 2 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Table 3 Frequency Bands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Table 4 Mandatory and Optional LRUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Table 5 Main Units and Modules (Overview) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Table 6 Carrier Unit Output Power Level (Typical/Guaranteed Values) . . . . . . . 30Table 7 Different Power Supply Configuration for AC- and DC-supplied BTSE . 34Table 8 DC Output Power of AC/DC Module and Shelter Temperature . . . . . . . 34Table 9 Insertion loss of DUAMCOs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Table 10 Insertion loss of FDUAMCOs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Table 11 Insertion loss of TMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Table 12 Assortment of Cell Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53Table 13 Carrier Units’ Power Reduction (ECU/FlexCU 850) at Antenna Port . . . 62Table 14 Carrier Units’ Power Reduction (ECU/FlexCU 1900) at Antenna Port . . 63

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Reason for Update

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Reason for Update Issue History

Issue 2, Release Independent, Starting from Release BR7.0 (2006/15/12)

Issue Date Summary

Issue history for this document with order number A30808-X3247-L026-*-7618

01 12/2003 New manual for new BTSE BS-82 II for BR7.0

02 01/2004 Manual extended for BR5.5 and BR6.0

03 08/2004 Expanded tables for “Combiner Losses” and “Carrier Unit Output Power Levels” to inform about typical as well as guaranteed values

04 01/2005 New carrier unit FlexCU and new type of COBA for BR8.0

05 04/2005 DC supplied version of BS-82 II for BR8.0

06 06/2005 DC supplied version of BS-82 II and new type of COBA for BR7.0

07 07/2005 Minor changes for BR8.0

08 11/2005 Minor changes for BR8.0

09 03/2006 Revision to harmonize the descriptions of BTSE-TEDs

Issue history for this document with new order number A50016-G5100-A026-*-7618

01 11/2006 Expansion of the manual due to new 900/1900 MHZ dual band configuration and revised chapters for BR8.0

02 12/2006 Expansion of the manual due to new release BR9.0

Table Issue History

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Reason for Update

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Introduction

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1 Introduction

1.1 General This manual is applicable for the SBS releases BR7.0, BR8.0, BR9.0 and higher.

The BS-82 II (eMicro II) is a member of the BTSplus family and the successor of the BS-82. Its outstanding concept and state-of-the-art architecture are highlights within Base Station Systems worldwide.

The BS-82 II provides full EDGE support. The modular design principle with a low number of different modules ensures easy installation, commissioning and operating, as well as low training costs and maintenance expenses with a minimal spare parts pool required. The advanced technology guarantees low operational costs and an optimum economy of scale.

With its very high output power the BS-82 II is market leader for compact Base Station Systems in the world. This high output power enlarged the application range for the BS-82 II and ensures a maximum flexibility in application scenarios.

The “all-in-one” BTSE BS-82 II supports all carrier unit types and frequency ranges, which are available in BR7.0 and further on. It is fully mainline compatible and can be installed for both indoor and outdoor usage.

Two variants of the BS-82 II are available: One for AC power supply and one for DC power supply.

g The term “eMicro II” is used as a synonym for “BS-82 II”.

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Introduction

1.2 Overview of the Functionality - Main Features of BS-82 II • One universal type of shelter is used for all BS-82 II indoor and outdoor config-

urations. The distinction between base and extension shelters depends only on the installed equipment inside the shelter.

• Mounting options: wall mounting and pole mounting

• Temperature range: -33 °C to +55 °C (-27 °F to +131 °F)

• The BS-82 II is delivered as AC-supplied or DC-supplied BTSE, with differences in the power supply and backup section, while other modules remain the same.

• All shelters provide space for:– up to 2 carrier units – combining modules (DUAMCO/FDUAMCO, DIAMCO)– for AC-supplied versions: an AC/DC rectifier, a battery controller unit and a

backup battery– for DC-supplied versions: a DC module and a DC controller unit – fan and filters – heater

Additionally the base shelter includes the mandatory COBA module and provides space for Link Equipment (LE, -48V DC supplied).

• Minimum/Maximum configuration:– The minimum configuration is a base shelter with 1 carrier. – Easy extension is possible with max. 2 extension shelters.

Each shelter is designed for the implementation of up to 2 carrier units. – The maximum configuration consists of 3 shelters: 1 base with 2 extension shel-

ters. With 2 carrier units each, the BS-82 II is designed for max. 6 carrier units. With FlexCU and from BR8.0 onwards up to 12 carriers per cell can be sup-ported.

• The carrier units GCU, ECU and FlexCU can be used in mixed carrier unit config-urations. – Dual mode of GSM / EDGE possible – GCU with guaranteed output power of 50W GMSK – ECU with guaranteed output power of 63W GMSK and 40W 8PSK

(GSM850/900) respectively 32W 8PSK (GSM1800/1900) – From BR8.0 onwards: FlexCU in BS-82 II with guaranteed output power of 30W

GMSK and 23W 8PSK (per TRX)

• Cell configurations per shelter: – Single cell: One BS-82 II with up to 4 TRX is serving only one cell – Multiple cell: One BS-82 II is serving more than one cell; When RX diversity is

required, up to 2 cells can be supported with a single base shelter and up to 6 cells with a configuration of base and 2 extension shelters.

– For BS-82 II, the maximum number of cells per BTSE is limited to 6 with one base and two extension shelters.

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• Dual band configuration (by using at least 2 shelters) for: – GSM 850 and GSM 1900– GSM 900 and GSM 1900 (for BR8.0 and higher)– GSM 900 and GSM 1800

• The BS-82 II provides the following features: – Frequency hopping, which is implemented as baseband frequency hopping or

synthesizer frequency hopping – Antenna hopping – Antenna diversity as a standard feature for all cell configurations. Antenna com-

bining with duplexers (DUAMCO/FDUAMCO) – BCCH redundancy is supported by a software feature, independent on the type

of antenna combining– Transmission diversity time delay – 3 external alarm inputs with overvoltage protection per shelter – 1 external alarm input which triggers the “Emergency/Zero Configuration” if

requested by external signal for DC-supplied BS-82 II – 3 internal alarm inputs (user configurable) per shelter – Adaptive power steps – Battery backup integrated (only for AC-supplied version)

• Abis interface configurations: – Drop and insert feature on 2 Mbit/s and 1.5 Mbit/s (T1) links is available on

64 kbit/s basis.– 2 or 4 Abis ports (star, loop and multidrop chain connections), depends on

COBA type– Change of PCM line configuration from star to multidrop or loop and vice versa

is possible without any interruption of service– Abis overvoltage protection with OVPT – Enhanced fullrate (EFR), fullrate (FR), halfrate (HR) and adaptive multirate

(AMR) with up to 96 physical channels per cell

Main Differences in the Functionality of BS-82 II for Different SBS Releases

Characteristics BR7.0 BR8.0/BR9.0

Max. number of extension shelters 2 2

Max. number of TRX per BTSE 6 12 1)

1) by use of FlexCUs

Max. number of TRX per cell 6 12 1)

Supported carrier units

GCUsECUsFlexCUs

YesYesNo

YesYesYes

Table 1 Functionality in Different SBS Releases

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Introduction

1.3 Technical Data

Characteristics BS-82 II (indoor and outdoor)

Shelter version F:EMICRO-2V1..3 F:EMICRO-2V4

Shelter dimensions (H x W x D, in mm): 800 x 580 x 430(2’6’’ x 1’9’’ x 1’4’’)

810 x 555 x 520(2’6’’ x 1’8’’ x 1’7’’)

Volume net: 200 liters = 0.2 m3 233 liters = 0.23 m3

Maximum TRX per BTSE

BR7.0:from BR8.0 (with FlexCUs):

612

Maximum TRX per cell

BR7.0 (3 shelters):from BR8.0 (3 shelters and FlexCUs):

612

AC input voltage range (for AC-supplied BTSE)

Nominal:Operating:

120 V / 230 V 88 V to 300 V

DC input voltage range (DC-supplied BTSE)

Nominal:Operating:

-48 V -40.5 V to -57.0 V

Maximum DC power consumption (radio equipment ON)

Heater ON:Heater OFF:

Appr. 940 W Appr. 740 W

Typical DC power consumption (radio equipment ON)

Heater ON with FAN medium speed and 60W LE:Heater OFF with FAN medium speed and 60W LE:

Appr. 890 W

Appr. 690 W

Maximum AC power consumption (radio equipment ON)

Heater ON:Heater OFF:

Appr. 1060 W Appr. 840 W

Typical AC power consumption (radio equipment ON)

Heater ON with above mentioned DC-power: Heater OFF with above mentioned DC-power:

Appr. 990 W

Appr. 770 W

Weight of a shelter

Table 2 Technical Data

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Mounting

Two types of mounting kits are available for BS-82 II shelters: – wall mounting – pole mounting

For wall mounting, the minimum distance between the base shelter and an extension shelter is: – 450 mm (1’5’’) for shelters < V4 – 550 mm (1’8’’) for shelter V4 (it is also possible to completely hang out the doors)

The maximum possible distance between the base and an extension shelter is 1.70 m due to the length of the protective tube for inter-shelter cabling.

With a configuration of the base and 2 extension shelters the base shelter must be installed in the middle, between the 2 extension shelters.

For detailed mounting instructions refer to the BS-82 II Installation Manual.

empty:

full equipped as base shelter with 2 carrier units for outdoor use with heater:

Appr. 45 kg (77 Lbs)

Appr. 105 kg (231 Lbs)

Temperature range -33 °C to +55 °C(-27 °F to +131 °F)

with installed heater only

Ingress protection rating IP55

Frequency-Band Uplink (MHz) Downlink (MHz)

GSM 850 824 - 849 869 - 894

P-GSM 900 (Primary GSM) 890 - 915 935 - 960

E-GSM 900 (Extended GSM) 880 - 915 925 - 960

R-GSM 900 (Railway GSM) 876 - 915 921 - 960

GSM-RE 900 (GSM Railway Extension) 876 - 901 921 - 946

GSM-PS 900 (P-GSM Shifted to E-GSM) 880 - 905 925 - 950

GSM 1800 1710 - 1785 1805 - 1880

GSM 1900 1850 - 1910 1930 - 1990

Table 3 Frequency Bands

Characteristics BS-82 II (indoor and outdoor)

Table 2 Technical Data

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Hardware Architecture

2 Hardware ArchitectureA very compact construction of the BS-82 II is one of many of its advantages.

The BS-82 II is designed for indoor and outdoor usage. Therefore a number of special equipment (e.g. heater, filters) can be included on a need basis.

2.1 AC-supplied and DC-supplied Variants of BS-82 II The BS-82 II is delivered as AC-supplied or DC-supplied BTSE, with differences in the power supply and backup section as well as in some construction parts (mounting kits, cabling, cover parts, frame), while other modules remain the same.

The DC-supplied variant of the BS-82 II works with an external DC supply. A DC module is built in. The AC/DC rectifier as well as the backup batteries are not included.

For an overview about the differences between the AC-supplied and DC-supplied vari-ants, relating to the power supply modules, refer to the table Different Power Supply Configuration for AC- and DC-supplied BTSE.

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2.2 Shelter Configuration The BS-82 II consists of one base shelter and - optional - up to two extension shelters. A standard shelter is used for both the base and the extension shelter.

The BS-82 II shelter (both type, base and extension) is designed to include up to 2 carrier units, combining modules (DUAMCO/FDUAMCO, DIAMCO), the power supply and air-conditioning equipment (heater, fan). Depending on AC- or DC-supplied variants of the BS-82 II, different modules are included (e.g. the battery only for AC version). The base shelter includes additionally the COBA and ABISCON or OVPT modules and provides additional space for the installation of link equipment.

The shelter satisfies various applications depending on the number of carrier units con-figured and/or the number and kind of network termination equipment provided.

Shelter Type LRUs Mandatory LRUs Optional

BS-82 II base shelter 1 COBA 3 HUs (with shelter V4)

1 ABISCON or OVPT 2 HUs (with shelter < V4)

1..2 carrier units

1 (F)DUAMCO 1 DIAMCO

For outdoor: membrane filter Heater (for outdoor only)

For indoor: dust filter or membrane filter

Fan

DC and battery controller

AC-supplied: AC/DC rectifier, battery

DC-supplied: DC module

BS-82 II extension shelter 1 1..2 carrier units

1 (F)DUAMCO 1 DIAMCO

For outdoor: membrane filter Heater (for outdoor only)

For indoor: dust filter or membrane filter

Fan

DC and battery controller

AC-supplied: AC/DC rectifier, battery

DC-supplied: DC module

BS-82 II extension shelter 2 <same modules as in exten-sion shelter 1>

<same modules as in extension shelter 1>

Table 4 Mandatory and Optional LRUs

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Figure 1 Shelter - AC-supplied, Front View

Legend:

AC/DC COBACUDCPDIAMCO(F)DUAMCOFANHULERF

Power supply system and battery controller Core basis Carrier unit DC Panel (with 4 DC breakers, LMT and Ethernet connector) Dual integrated amplifier multicoupler Duplexer amplifier multicoupler / Flexible DUAMCO Fan unitHeight unitLink equipment Radio frequency

FAN

DIA

MC

OC

OB

A

AC

/DC

sys

tem

CU

#0

CU

#1

Co

ver

pla

te

HU

#0

for

LE

HU

#1

for

LE

DC panel

battery

heaterRF cable inlet

1)

2)

3)

4)

2)

1) only relevant and mandatory for base shelter2) only relevant and optional for base shelter

3) optional module4) for outdoor installation only,

(F)D

UA

MC

O

optional

BS-82 II AC-supplied

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Id:0900d805800f3c8f

Figure 2 Shelter - DC-supplied, Front View

Legend:

DCBCTRLM DC and battery controller

FAN

DIA

MC

OC

OB

AC

ove

r p

late

CU

#0

CU

#1

Co

ver

pla

te

HU

#0

for

LE

HU

#1

for

LE

DC panel

heaterRF cable inlet

1)

2)

3)

4)

2)

1) only relevant and mandatory for base shelter2) only relevant and optional for base shelter3) optional module4) for outdoor installation only, optional

(F)D

UA

MC

O

DC

BC

TR

LM

DC

mo

du

le

BS-82 II DC-supplied

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Figure 3 Base Shelter with two Extension Shelters

With a configuration of 1 base and 2 extension shelters (as shown in Figure 3) the base shelter must be installed in the middle, between the 2 extension shelters.

2.2.1 Base ShelterThe base shelter provides space for the following modules: – 1 COBA (up to 4 PCM lines can be connected with COBA4P12)– 1 ABISCON or OVPT – 2 carrier units (GCU, ECU, FlexCU) – 1 AC/DC rectifier and 1 backup battery unit (for AC-supplied BTSE) – 1 DC module (for DC-supplied BTSE) – 1 DC and battery controller – 1 DC panel – 1 DUAMCO/(F)DUAMCO unit – 1 DIAMCO unit– 3 HU (19”) for Link Equipment – 1 Fan and 1 Heater unit

*) AC-supplied BS-82 II: 3 external alarmsDC-supplied BS-82 II: 4 external alarms; the 4th is dedicated to the emergency configuration (non-configurable)

hosepipe with:inner metal shield (EMI protection)outer sheathing (IP protection)

Backplane Backplane Backplane

Extension Shelter 1 Extension Shelter 2Base Shelter

4 RF 1 AC (DC)3/4 ext. Alarms *)

4 RF2 LE

1 CAN Bus1 CC-Link1 GND

1 AC (DC)4 PCM 1 ext. Clock 3/4 ext. Alarms *)

4 RF

1 CAN Bus1 CC-Link1 GND

1 AC (DC)3/4 ext. Alarms *)

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Id:0900d805800f3c8f

Figure 4 Block Diagram of the Base Shelter (AC-supplied)

The BS-82 II base shelter can be extended with 2 extension shelters. All needed instal-lation material is part of the extension shelters.

g Up to 4 Abis lines are supported if M:COBA4P12 module is installed into the BS-82 II base shelter.

BS-82 II Base Shelter (AC-supplied)

ANT0

ANT1

ANT0

ANT1

DUAMCO/FDUAMCO

DIAMCO

COBA

-48V-48V

TX

RX

RXdiv

CU0

TX

RX

RXdiv

CU0

-48V

-48V

CC

CC

-48V

CC

CC

CAN-Bus

FAN

FanAlarmHeater

-48V

DCP

Shelter IDBatt.Temp.

Battery5.5 Ah

RDO LE1 LE0

DC

3x AC/DCAlarms

DC and Battery Controller(Alarm Collection)

On/Off

LE 0

LE 1

-48V

-48V

OVP

AC/DC Rect.

EMI-Filter

3x Shelter Input

RFAbis

AbisRF

EXT.1

EXT.2

3x SiteInput

AC MainsSupply

ETHERNETLMT

OASI

OVPT

4 PCM

CLK

4x Abis

Ext. SyncClock

TMA

TMA

TMA

TMA

mandatory modules optional modules

Legend:

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Figure 5 Block Diagram of the Base Shelter (DC-supplied)

The main communication between the modules is provided by means of bi-directional serial links (CC-Links) between the carrier units and the COBA. These CC-links handle the entire communication between BTSE core and carrier units. Baseband frequency hopping is also supported by these links.

All alarms, besides the alarms generated in the COBA and in the carrier units, are trans-ported via the CAN bus. Alarms of the carrier units are transmitted via CC-link, the COBA uses the interface bus.

The carrier unit provides all analog and digital signal processing including an RF power stage necessary to process a single carrier (e.g. GSM 8 TCHs). The carrier unit(s) inter-face with the combining equipment on the one side and with the COBA on the other modules. The COBA provides functions common to all carriers within the BTSE (e.g. clock generation, O&M processing,...) as well as LAPD processing for the carriers.

BS-82 II Base Shelter (DC-supplied)

ANT0

ANT1

ANT0

ANT1

DUAMCO/FDUAMCO

DIAMCO

COBA

-48V-48V

TX

RX

RXdiv

CU0

TX

RX

RXdiv

CU0

-48V

-48V

CC

CC

-48V

CC

CC

CAN-Bus

FAN

FanAlarmHeater

-48V

DCP

Shelter ID

RDO LE1 LE0


On/Off

LE 0

LE 1

-48V

-48V

OVP

3x Shelter Input

RFAbis

AbisRF

EXT.1

EXT.2

Mains Break

ETHERNETLMT

OASI

OVPT

4 PCM

CLK

4x Abis

Ext. SyncClock

TMA

TMA

TMA

TMA

EMI-Filter

DCMOVP

25 A

OVP Alarm Down Input

3x Site Input

external DC Supply (-48V)

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2.2.2 Extension Shelters The BS-82 II is designed to increase the capacity by connecting up to two extension shelters on the base shelter.

The same type of shelter is used for the base shelter and the extension shelter, too.

Each extension shelter provides space for the following modules:

– 2 carrier units (GCU, ECU, FlexCU) – 1 AC/DC rectifier and 1 backup battery unit (for AC-supplied BTSE) – 1 DC module (for DC-supplied BTSE) – 1 DC and battery controller – 1 DC panel– 1 DUAMCO/FDUAMCO unit– 1 DIAMCO unit– 1 Fan unit– 1 Heater unit

Figure 6 Block Diagram of the Extension Shelter (AC-supplied)

BS-82 II Extension Shelter (AC-supplied)

ANT0

ANT1

ANT0

ANT1

DUAMCO/FDUAMCO

DIAMCO

-48V-48V

TX

RX

RXdiv

CU0

TX

RX

RXdiv

CU0

-48V

-48V CC-Link

CAN-Bus

FAN

FanAlarmHeater

-48V

DCP

Shelter IDBatt.Temp.

Battery5.5 Ah

RDO

DC

3x AC/DCAlarms


On/Off

OVP

AC/DC Rect.

EMI-Filter

3x Shelter Input

3x SiteInput

AC MainsSupply

TMA

TMA

TMA

TMA

fromBaseShelter

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Figure 7 Block Diagram of the Extension Shelter (DC-supplied)

BS-82 II Extension Shelter (DC-supplied)

ANT0

ANT1

ANT0

ANT1

DUAMCO/FDUAMCO

DIAMCO

-48V-48V

TX

RX

RXdiv

CU0

TX

RX

RXdiv

CU0

-48V

-48VCAN-Bus

FAN

FanAlarmHeater

-48V

DCP

Shelter ID

RDO


On/Off

OVP

3x Shelter Input

Mains Break

TMA

TMA

TMA

TMA

EMI-Filter

DCMOVP

25 A

OVP Alarm Down Input

3x Site Input

external DC Supply (-48V)

CC-Link fromBaseShelter

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Module Description

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3 Module Description

3.1 Overview This manual describes the technical details of BS-82 II for different releases. Fo the information which module is supported by which release, refer to the following sections.

Name/Type F-V* Remarks

Core module (COBA)

M:COBA2P8VxM:COBA4P12Vx

No The COBA must be equipped in the base shelter. The COBA4P12Vx is available from BR7.0 onwards.

GCU GCUGVxGCUDVx

Yes At least one carrier unit is mandatory per shelter.All types may be mixed.

ECU ECU850VxECUGVxECUDHPVxECUPHPVx

Yes

FlexCU FCU850VxFCUGVxFCUDVxFCUPVx

Yes FlexCU modules are available from BR8.0 onwards.

DUAMCO DUAMCO2REVxDUAMCO2REVxDUAMCO2DVxDUAMCO4DVxDUAMCO2HPPVxDUAMCO4HPPVx

Yes Combiner module, alternatively to the FDUAMCO module.

FDUAMCO FDUAMCO850VxFDUAMCOEGVxFDUAMCOPGVxFDUAMCOPS5VxFDUAMCODVxFDUAMCOPVx

Yes Combiner module, alternatively to the DUAMCO module. The FDUAMCO is the successor of the DUAMCO.

DIAMCO DIAMCOGVxDIAMCOEGVxDIAMCODVxDIAMCO850VxDIAMCOPVx

Yes Optional RX multicoupler module

Table 5 Main Units and Modules (Overview)

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Module Description

TMA TMAGVxTMADVxTMAPVxTMAREVxSTMA850VxSTMAEGVxSTMADVxDTMADVxDTMAPVx

Yes The tower mounted amplifier is an optional module. It connects the antenna with the BTSE in order to amplify the receive signal and pass through the transmit signal. Different TMAs are available for different transmit frequencies.

OVPTABISCON

M:OVPTVxM:OVPTKOAXVx M:ABISCONVxM:ABISCONCXVx

No The overvoltage protection and tracer and the Abis connec-tion modules are optional modules and can be installed alter-natively. It:– can be equipped in the base shelter– supports 100 Ω /120 Ω balanced line or 75 Ω coaxial line

LE ---- No The Abis link equipment is an optional customer-specific module and acts as the front end to provide the Abis Inter-face.

AC/DC System AC/DCM-2Vx No Only available for AC-supplied BTSE.– supply of all -48V consumers within the BTSE – alarm generating (AC mains or module failures)– one AC/DC system for each shelter

DC Module DCM-2Vx No Only available for DC-supplied BTSE. The DC module provides the electrical interface to external DC supply.

DC and Battery Controller

DCBCTRLM-2Vx No This controller executes different functions dependent on the power supply (AC or DC), e.g. it can:– monitor the AC/DC rectifier – monitor the DC output of the AC/DC system – monitor alarm inputs, internal and external inputs – be responsible for charging and monitoring the backup

battery.

For details see description. One controller is integrated in each shelter.

DCP --- No The DC panel is used for distribution of -48V DC.

Backup Battery BATTPACKM-2Vx No Only available for AC-supplied BTSE.Mandatory unit for each shelter.

ACPROTECT ACPROTECT-2MVxACPROT-2M/UVx

No Only available for AC-supplied BTSE. Mandatory for the U.S. market. Mandatory for the world market, if BTSE or antenna are installed outdoor.

Fan FANVx No A fan is mandatory for each shelter.

Heater HEATERM-2Vx No Optional unit for outdoor installation.



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Module Description

Id:0900d805800f4e2f

Dust Filter DUSTFILM-2Vx No – optional for indoor installations with shelters V1 to V3– for cleaning the cooling air – one filter for each shelter – mounted into the left door of the shelter – combination with heater is not allowed

Membrane Filter

MEFM-2Vx No – mandatory for all outdoor installations – optional for indoor installations with shelters V1 to V3– mandatory for indoor installations with shelter V4– for cleaning the cooling air – one filter for each shelter – mounted into the left door of the shelter

Shelter SH:EMICRO-2Vx No One type of shelter for both, base and extension shelters, and for both, indoor and outdoor installation.

Frame F:EMICRO-2VxF:EMICRO-2DCVx

No One frame is integrated in each shelter; different frame types for AC- and DC-supplied BTSE.

Cover Parts CP:COBA/COSAVxCP:CUVxCP:DIAMCOVxCP:LMUM-2VxCP:ACDCCVx

No There is a special cover part for each slot.All unequipped slots in the frames of a shelter must be equipped with cover parts, to reach a balanced airflow

Mounting Kits MK:AIRDCUCT82BVxMK:AIRBRVxMK:CALEVxMK:CASH82BVxMK:CASH82DCVxMK:ISB/E82VxMK:CA82-ISSVxMK:CARSH-ISSVxMK:BATTM-2VxMK:POLEM-2VxMK:LOCKM-2VxMK:TLOCKFV1

No There are some mounting kits for cabling and installation inside and outside the shelters: – air duct– cabling– cabling for inter site synchronisation (ISS; optional)– battery – pole installation (optional)– door lock (optional, for shelter < V4 only)– transportation lock (optional), with SH:EMICRO-2V4

*) The column “F-V” provides the information whether the module is frequency-variant or not.



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Module Description

3.2 Core Module (COBA)The core board COBA is the central board. The functionality of the advanced clock gen-eration (ACLK) and the base core controller of the entire BTSE are integrated. The COBA provides PCM30/24 Abis-interfaces and carrier unit interfaces (CC-links).

The core module has the following tasks inside of the BTSE:– local controlling of the entire BTSE– generation of system clocks– providing of up to 4 Abis-interfaces (PCM30/24) to BSC or other BTSEs– routing of Abis data to up to 6 carrier units– providing interfaces to internal and external alarms – providing an interface to the LMT/OMT– providing an interface for external clock synchronisation – handling and processing of O&M-messages

One COBA has to be installed.

Figure 8 Connection of the COBA

Types of COBA: • M:COBA2P8 supports two PCM lines • M:COBA4P12 supports four PCM lines (available from BR7.0 onwards)

g The naming convention for COBAs: The first digit gives the number of Abis-interfaces, the following letter gives the kind of Abis-interface (e.g. P for PCM30/24), and the following number gives the number of carrier-unit-interfaces (CC-links). For example:COBA2P8 means two PCM30/24 Abis-interfaces and eight carrier-unit-interfaces. COBA4P12 means four PCM30/24 Abis-interfaces and 12 carrier-unit-interfaces.

The base core controller maintains the software of all BTSE units in FLASH-EPROMs, monitors the software download, and terminates all internal system alarms. Beside the O&M functions, the controller handles the signalling messages between the BSC (Abis) and carrier units (CC-link).

OVPT CU

COBA Abis

Abis

CC-Linkotherinterfaces

CUs

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Module Description

Id:0900d805800f4e2f

The ACLK generates the system specific timing signals that are distributed by the CC-link to the carrier units.

With the installation of a COBA type COBA4P12 the “cross-connect” feature is sup-ported.

g It is recommended to install a COBA from type COBA4P12 in case the band-width of two PCM30/24 links (E1/T1) is not sufficent for a required BTSE configuration, e.g. due to a high number of packet channels with high EDGE coding schemes or a multidrop configuration.

A COBA4P12 is also recommended because of the possibly extension of up to 12 carriers (wirh FlexCUs).

Fault propagation through dependent modules

When a failure occurs in the COBA module, the entire BTSE goes out of service until the faulty COBA module is replaced.

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Module Description

3.3 Carrier Related Modules The carrier unit takes care of all carrier oriented tasks. In the uplink (UL) direction, two or four RF signals (diversity) are received and finally converted into TRAU frames and signalling data. In the downlink (DL) direction, TRAU frames and signalling data are received from the core and converted into a GMSK or 8PSK modulated RF signal, which is amplified to the desired power level.

Different types of carrier related modules can be used: carrier units (GCUs), EDGE carrier units (ECUs) and flexible carrier units (FlexCUs). Each carrier unit can be replaced by another without any additional hardware change.

– An ECU is similar to a GCU but with the additional support of 8PSK modulation. It converts the signalling and traffic data into a GMSK or 8PSK modulated signal.

– A FlexCU is a complete two-carrier unit and its two TRX can be configured indepen-dently, e.g. into different sectors; GMSK and 8PSK modulated signals are sup-ported.

Up to two carrier units can be installed in each BS-82 II shelter. So, a BS-82 II with two extension shelters can handle up to six carrier units.

GCU, ECU and FlexCU modules may be installed in any kind of mixed configurations.

g For cells served by a mixture of ECU and FlexCU the power level of the ECU is reduced to the power level of the FlexCU.

For the typical and the guaranteed values of RF output power level see section Carrier Unit Output Power Level.

3.3.1 GSM Carrier Unit (GCU) The GCU is a carrier unit variant that supports GMSK modulation.

There are different variants of GCUs for the frequency bands GSM 900 and GSM 1800 (refer also to Table 6) .

3.3.2 EDGE Carrier Unit (ECU) The ECU can support EDGE functionality in uplink and downlink. In downlink direction, the signalling and traffic data are received from the core and converted into GMSK or 8PSK modulated signals which are amplified to the desired power level. With the intro-duction of EDGE it is possible to mix EDGE and non EDGE timeslots on the same carrier.

There are different variants of ECUs for the several frequency bands GSM 850, GSM 900, GSM 1800 and GSM 1900 (refer also to Table 6).

The mechanical design of ECU is identical to that of all other CU versions; it is therefore hardware compatible and fits into all BTSE shelters.

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Module Description

Id:0900d805800f4e2f

3.3.3 Flexible Carrier Unit (FlexCU)

g FlexCU modules are available from BR8.0 onwards.

The FlexCU is a complete two-carrier unit with the same dimension and based on the ECU. Its two TRX can be configured independently, e.g. into different sectors. The FlexCU either acts as two independent ECUs or as one carrier unit with four receivers, the so called “fourfold receive diversity” mode. To improve the downlink in fourfold receive diversity mode it is recommended to activate the feature “Transmission Diversity Time Delay”.

In uplink direction four RF signals are received and converted into traffic and signalling data. In downlink direction traffic and signalling data are received and converted into two GMSK or 8PSK modulated signals which are amplified to the desired power level.

By using FlexCUs instead of other carrier units the number of carriers within the existing shelter can be doubled. This is an ideal solution to double the capacity of BTSEs, an advantage not only for footprint restricted BTS sites.

A working FlexCU requires about 30% less power than two ECUs. As soon as a TRX is idle, the transmitter (TX) is switched off. With this enhanced power saving mode the overall power consumption of an idle FlexCU (both TRX in idle state) is only appr. 40 Watt.

The FlexCU supports all frequency bands: GSM 850, GSM 900, GSM 1800 and GSM 1900. There exists one type for each frequency band (refer also to Table 6).

FlexCU Operation Modes

FlexCUs may operate in two different modes: the double and the single TRX mode.

The double TRX modeis the default configuration of a FlexCU, with full support of MCS-1 to MCS-9 in uplink and downlink. It functions like 2 independent ECUs with complete twofold EDGE TRX functionality: Each of both transceivers shows a full-equipped main receiver and diversity receiver.

Figure 9 FlexCU – Double TRX Mode

The so called fourfold receive diversity mode is the single TRX modein which the FlexCU functions as one carrier unit with four receivers. If transmit diversity is enabled, this mode is automatically activated.

The four receivers of the FlexCU are fed by four independent antennas via one (F)DUA-MCO together with one DIAMCO.

The TX path is fed via the (F)DUAMCO to two of the four antennas.

The fourfold receive diversity mode enhances the receiver sensitivity of the BTSE. The doubled number of the RX paths leads to an enhanced diversity gain.

TX0

TX1

RX-N0RX-Div0

RX-N1RX-Div1

SignalProcessing

Combiner(s) TX0

TX1

RX-a

TX0RX-b

RX-cRX-dRX-d

RX-bRX-b

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Module Description

Figure 10 FlexCU – Single TRX Mode – Fourfold Receive Diversity Mode

3.3.4 Carrier Unit Output Power Level The typical and the guaranteed values of RF output power level per TRX are listed below for GCUs, ECUs and FlexCUs, dependent on its frequency bands and modulation types (GMSK and 8PSK). The values in “Watt” are rounded.

g For the U.S. market, you can find the carrier units’ power reduction for 850 MHz and 1900 MHz in chapter FCC Issues.

TX0

TX0

RX-NRX-Div0

RX-Div1RX-Div2

SignalProcessing

Combiner(s) TX0

TX1

RX-a

TX0RX-b

RX-cRX-dRX-d

RX-bRX-b

Frequency Band

Carrier Unit Type

TypicalRF Output Power

GuaranteedRF Output Power

GMSK 8PSK GMSK 8PSK

dBm Watt dBm Watt dBm Watt dBm Watt

GCU GSM 900 GCUGV2 47.3 54 -- -- 47.0 50 -- --

GSM 1800 GCUDV2 47.3 54 -- -- 47.0 50 -- --

ECU GSM 850 ECU850V3(A) 48.3 68 46.3 43 48.0 63 46.0 40

GSM 900 ECUGV3(A) 48.3 68 46.3 43 48.0 63 46.0 40

GSM 1800 ECUDHPV3(A) 48.3 68 45.3 34 48.0 63 45.0 32

GSM 1900 ECUPHPV3(A) 48.3 68 45.3 34 48.0 63 45.0 32

FlexCU in BS-82 II per TRX

GSM 850 FCU850V1 45.0 32 44.0 25 44.7 30 43.7 23

GSM 900 FCUGV1 45.0 32 44.0 25 44.7 30 43.7 23

GSM 1800 FCUDV1 45.0 32 44.0 25 44.7 30 43.7 23

GSM 1900 FCUPV1 45.0 32 44.0 25 44.7 30 43.7 23

Table 6 Carrier Unit Output Power Level (Typical/Guaranteed Values)

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Module Description

Id:0900d805800f4e2f

3.4 Antenna Combining Modules Various types of ACOMs are available. Each type comes in various modules and is associated with various frequency bands.

3.4.1 Duplexer Amplifier Multicoupler (DUAMCO) The DUAMCO consists of two identical modules. Each of the DUAMCO modules combines the transmit and receive paths to one antenna connector. It splits the receive signal to be used in the carrier units and serves as a duplexer unit, which provides filter-ing functions for both RX and TX paths and low noise amplification for the RX path.

For each frequency band different versions of DUAMCO are available.

Different DUAMCO versions provide different functionalities: – a DUAMCO 2:2 module connects one carrier to one antenna– a DUAMCO 4:2 module connects up to 2 carriers to one antenna

g It is possible to install DUAMCO/FDUAMCO modules of different frequency bands, but: All combining equipment in a cell must support the same frequency range (that means either GSM 850, or GSM 900, or GSM 1800, or GSM 1900).

g Use FDUAMCO850Vx modules for the GSM 850 MHz band.

g Use FDUAMCORE modules for the GSM-RE 900 MHz band.

g DUAMCOs of different versions have a different TX attenuation.

The DUAMCO is equipped with complete TMA interfaces for DC supply and signalling. For more information please refer to Antenna Combining - FDUAMCO/DUAMCO.


Each amplifier of the DUAMCO RX path (LNA) consists of two parallel branches. If only one branch of one amplifier has a failure, the amplifier will reach lower sensitivity and generates a warning. The operation continues with performance degradation.

If more than one branch of the whole amplifier chain is faulty, the corresponding path of the receiver will not be ready for operation. The connected carrier units lose one of their RX paths (normal or diversity path). The operation continues without diversity feature. If a carrier unit loses both RX paths, it will be configured out of operation.

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Module Description

3.4.2 Flexible Duplexer Amplifier Multicoupler (FDUAMCO) The FDUAMCO is the successor of the DUAMCO. It consists of two identical modules, which each combine the transmit and receive paths to one antenna connector.

Each FDUAMCO module may be jumpered in the following modes: – 2:2 mode: 1 carrier is fed to the antenna port – 4:2 mode: 2 carriers are combined and fed to the antenna port

Within each cell/sector the same mode of the FDUAMCO shall be installed.

The FDUAMCO is equipped with complete TMA interfaces for DC supply and signalling. For more information please refer to Antenna Combining - FDUAMCO/DUAMCO.

3.4.3 Dual Integrated Amplifier Multicoupler (DIAMCO) The DIAMCO is an optional module for antenna multicoupling and is required for the RX signal path in FICOM configurations and special DUAMCO configurations.

The DIAMCO is required to implement two cells/sectors with RX diversity in a base or extension shelter. For the uplink direction, a DIAMCO module is used to split the RX antenna signal into several receiver inputs.

The DIAMCO is equipped with complete TMA interfaces for DC supply and signalling.

For more information please refer to Antenna Combining - DIAMCO.


Each amplifier of the DIAMCO RX path (LNA) consists of two parallel branches. If only one branch of one amplifier has a failure, the amplifier will reach lower sensitivity and generates a warning. The operation continues with performance degradation.

If more than one branch of the whole amplifier chain is faulty, the corresponding path of the receiver will not be ready for operation. The connected carrier units lose one of their RX paths (normal or diversity path). The operation continues without diversity feature. If a carrier unit loses both RX paths, it will be configured out of operation.

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3.4.4 Tower Mounted Amplifier (TMA) The TMA is an optional module and connects the antenna with the BTSE in order to amplify the receive signal.

The configuration with TMA is advantageous because the system sensitivity will not be degraded by feeder cable loss. One TMA is needed for every created RX path of (F)DUAMCO and/or DIAMCO installed and not cascaded.

There are 2 kinds of TMA: the "single TMA" (GSM 850, GSM 900) and the "dual TMA" (GSM 1800, GSM 1900). ,

g If the TMA is used together with a HPDU, a BIAS-T (DUBIAS) for powering and sig-nalling of the TMA is required.

For more information please refer to Antenna Combining - TMA.


The TMA watches its LNA by monitoring the DC current and generates an alarm message towards (F)DUAMCO/DIAMCO. The connected (F)DUAMCO/DIAMCO gen-erates an alarm to O&M in case of malfunction. LEDs on the front panel of the (F)DUAMCO/DIAMCO show the state of each TMA. Each green LED indicates that the DC for the TMA is „OK“ and each red LED gives notice of a faulty TMA if the BTSE is configured for TMA.

The LNA consists of two parallel branches. If only one branch has a failure, the amplifier reaches lower gain and the connected (F)DUAMCO/DIAMCO will generate a warning towards the O&M. Operation continues with performance degradation.

In case that both branches fail, the amplifier will be bypassed by the “Fail Safe switch”. The connected (F)DUAMCO/DIAMCO generates an alarm message towards the O&M. The red LED in the (F)DUAMCO/DIAMCO of the concerned TMA is switched on, and the multicoupler device will be switched into AMCO mode automatically. The operation continues with minor performance degradation.

If a TMA is installed, the (F)DUAMCO/DIAMCO works in MUCO mode and only the second amplifier of the RX chain is active. If both branches of the TMA fail, “Fail Safe Compensation” will take effect. The TMA connects the antenna directly to the (F)DUAMCO/DIAMCO and the (F)DUAMCO/DIAMCO receives a message to switch over into AMCO mode. In AMCO mode both amplifiers become active and the attenua-tion switches off. The connected carrier units continue their operation with minor perfor-mance degradation. Only a POWER ON/RESET or a software reset can terminate the state of “Fail Safe Compensation”.

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Module Description

3.5 Power Supply Modules The following table shows the differences between the AC-supplied and DC-supplied variants, relating to the power supply modules:

3.5.1 AC/DC System and Backup BatteryOnly for the AC-supplied BTSE.

The tasks of an AC/DC system are the supply of all -48V consumers within the BTSE and the generating of alarms in case of AC mains or AC/DC module failures. Each shelter has its own AC/DC system.

The AC/DC module is specified with:

Module AC-supplied DC-supplied

AC/DC module Mandatory Not required

DC module Not required Mandatory

DC and battery controller Mandatory Mandatory

DC panel included in the shelter included in the shelter

Backup battery Mandatory Not required

ACPROTECT Optional for World market, mandatory for U.S. market

Not required

Table 7 Different Power Supply Configuration for AC- and DC-supplied BTSE

Nominal AC input voltage range: Operating AC input voltage range: Maximum AC input current: Rated frequencies: Efficiency: DC output voltage range: Maximum DC output power: Minimum DC output powerOverload protectionOver / under voltage protection (AC)Short circuit protection (DC)

120V / 230V 88V to 300V (without damage) 16A50 Hz / 60 Hz (-6% / +4%) > 90% -39.5V ... – 57.9V 1200W (see also Table 8 below) 80WPDC, max = 1200W; IDC,max = 30A

Shelter Temperature Max. DC Output Power Description

-33 °C to -5 °C (-27 °F to +23 °F)

250W Heater, DCBCRTL: ON

-5 °C to +20 °C (+23 °F to +68 °F)

1200W Radio equipment, heater: ON

+20 °C to +55 °C (+68 °F to +131 °F)

950W Radio equipment: ON

Heater: OFF

Table 8 DC Output Power of AC/DC Module and Shelter Temperature

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The battery backup feature guarantees continuous operation for a definite time in case of AC mains breakdown or AC/DC module failure.

One battery set (48V) is mandatory for each shelter.

The battery set consists of four battery blocks (12V each), two fastening belts for the battery blocks and a protective cover. The installation of an additional battery set is not possible.

Emergency Operation

The backup time of each BS-82 II system can be increased by using the “Emergency Operation” feature. To hold the BS-82 II in operation mode for an extended time, it is necessary to switch over to “Emergency Configuration” after a user-defined time. In this mode, none or only operator defined TRX remain in operation. All TRX, which are not part of the emergency configuration, are switched off.

If enabled, a second timer counts for another user-defined time. With its expiration, all modules are switched off, except the COBA. This means “Zero Configuration”.

g The “Emergency Configuration” is also available for a DC-supplied BTSE and is triggered by a special external alarm. This alarm is non-configurable by the software but fix dedicated to the “Emergency Configuration”.

3.5.2 AC Input Lightning Protection (ACPROTECT) Only for the AC-supplied BTSE.

To improve the lightning surge resistibility of the AC power port, it can be protected by an external ACPROTECT module.

This module is mandatory for the U.S. market! For the world market, the ACPROTECT module is mandatory if either the BS-82 II or the antenna is installed outdoor. Exception: A BS-82 II in a LPZ1 room (Lightning Pro-tection Zone 1) with outdoor antenna does not need an ACPROTECT module.

If mandatory, one ACPROTECT module per shelter has to be installed as external unit.The ACPROTECT box also includes an AC breaker and is water proof.

ACPROTECT modules are available for 120V (U.S. version) and for 230V.

3.5.3 DC Module (DCM) Only for the DC-supplied BTSE.

The DC module provides the electrical interface for a BS-82 II shelter to external DC supply. It contains the DC connection terminals, the EMI filter, a lightning protection with its own alarm and a 25 A-DC breaker (for the DC system). Each shelter has its own DC module.

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Module Description

3.5.4 DC and Battery Controller (DCBCTRLM) Each shelter has its own DCBCTRLM module. It indicates the status of the power supply system with LEDs and acts as an alarm collection point for all internal and external alarms.

AC-supplied BTSE

The DCBCTRLM of an AC-supplied BTSE supervises the AC/DC module and the DC outputs of the AC/DC system.

In detail it performs the following functions: – Supply of all -48V consumers with DC power – Load On / Off – Battery On / Off – Heater On / Off – Charging of battery backup system – Monitoring of battery current – Monitoring of load voltage range and battery voltage range – Monitoring of shelter and battery temperature ranges and switching off the DC

power in case of over- or under-temperature – Interface for alarm signals (external/internal) – DIP switch for selecting the AC/DC sub-rack address and the battery capacities of

the connected battery system– CAN bus system interface

DC-supplied BTSE

In a DC-supplied BTSE the DCBCTRLM switches the DC power on/off for the heater and the shelter system load, the same way as for the AC-supplied variant.

All functions described above are supported except the battery monitoring/controlling as the batteries are not included in a DC-supplied variant.

3.5.5 DC Panel (DCP) The DCP is used for distribution of the -48V supply voltage to the modules and inte-grates the DC breakers to protect the DC power lines.

4 DC breakers are available for the carrier units, the COBA, the combiners, the LE, the heater, the fan, and the battery (for AC-supplied BTSE only).

g A fifth DC breaker BR05 with 25A exists for the DC system. This breaker is not part of the DC panel but the DC module (underneath the DC panel) – and therefore available for DC-supplied BTSE only.

In addition, 2 connectors (LMT and ethernet connector) are integrated into the front cover of the DC panel. These connectors are linked to the COBA module.

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3.6 Overvoltage Protection and Tracer (OVPT) The OVPT is an optional module. Alternatively an ABISCON module can be installed.

But, the installation of an OVPT module becomes mandatory if:

a) For indoor: The connection point for the Abis line (e.g. Network Termination for PCM30 or Microwave equipment) is outside of the building which is housing the BTSE.

b) For outdoor: The connection point for the Abis line is outside of the service1/2 shelter.

The OVPT is responsible for protection of the PCM24/PCM30 ports of the Abis interface and the external synchronization clock input of the BTSE against overvoltage. Addition-ally the OVPT provides interfaces to connect PCM tracers without interruption for mon-itoring the Abis lines and an input interface for external synchronisation sources. The OVPT is located outside the EMI shield to terminate possible overvoltages before they enter the EMI protected area inside of the shelter.

The board performs the following tasks:– lightning protection of PCM lines– lightning protection of the external synchronization clock – provision to connect external monitoring equipment without interruption; The lines

are decoupled to prevent distortions. – support of 75 Ω coax or 100 Ω/120 Ω balanced lines

g – Up to 2 PCM lines are supported with COBA2P8 module. – Up to 4 PCM lines are supported with COBA4P12 and COREXT module.

Figure 11 ABISCON and OVPT (100/120 Ω)

monitoring interfaces

OVPTABISCON

terminals for external PCM cables

uplink linesdownlink lines

*

The clamp is not part of the BS-82 II ABISCON or OVPT.*

*

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Module Description

3.7 Abis Connection (ABISCON) The ABISCON is an optional module. Alternatively to the ABISCON an OVPT module is available.

The Abis connection module provides the interface between the shelter and the periph-eral Abis cables. The Abis connection module also provides the feature for monitoring the Abis lines and an input interface for external synchronisation sources. The module is located outside the EMI shielding.

The board performs the following tasks: – support of 75 Ω coax or 100 Ω/120 Ω balanced lines – provision to connect external monitoring equipment without interruption; The lines

are decoupled in order to prevent distortions.

For an apperance of an ABISCON see Figure 11.

g – Up to 2 PCM lines are supported with COBA2P8 module. – Up to 4 PCM lines are supported with COBA4P12 and COREXT module.

3.8 Abis Link Equipment (LE) The LE is an optional module and provides physical terminations for the Abis interface. It can be provided by Siemens as an optional module or by the customer. Different equipment can be used for wire, radio or optical transmission depending on customer requirements. If radio transmission is required, microwave equipment can be used. Direct connections of the PMC30/24 links are also possible.

If a link equipment is available at the telecommunication site, no additional link equip-ment is necessary. If the BTSE is installed away from a telecommunication site, the link equipment can be installed inside the BTSE.

For connection of LE to external interfaces (Abis links), there are cable entries available.

The number of LE that can be installed depends on the height of each LE and the shelter type.

3.9 Fan Unit The fan unit produces a sufficient airflow to cool the installed modules.

In order to keep both the acoustic noise and the power consumption of all fans at the lowest level possible, the fan speed is temperature controlled via an integrated (internal) sensor.

Furthermore, each fan delivers a "Fan failure" signal. The signal is collected by the DCBCTRLM and processed by the COBA.

One fan unit is installed in each shelter.

A mixed configuration of fan types is permitted.

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3.10 Heater The heater is an optional unit for outdoor use.

The tasks of the heater are to preheat the ingested air and to warm up the shelter, if the temperature inside the shelter is below the specified operating temperature range of the integrated modules.

If ambient temperatures below -5 °C (+23 °F) are expected, each shelter needs a heater.

During cold start, only the heater(s) and the DCBCTRL board are powered. All other modules remain off. They are switched on as soon as the shelter temperature is higher than +5 °C (+41 °F).

Restriction

If a shelter is equipped with a dust filter (for indoor applications only) then installation of a heater is not permitted.


If the heater is faulty, the BTSE will operate as long as the temperature inside the shelter stays within defined operating range.

If the temperature falls below the lower threshold of the defined range, the DC supply of system load is switched off and the BTSE goes down.

If the internal temperature rises into the defined operating range again, the BTSE starts automatically with operation.

3.11 Membrane Filter (MEF) A MEF is mandatory for each shelter of a outdoor BTSE.

The MEF is fitted to the inside of the door to protects the BTSE against dust particles and water. It can be installed in indoor and outdoor variants of the BTSE.

In case the new shelter SH:EMICRO-2V4 is used, the MEF is mandatory for indoor use, too.

3.12 Dust Filter (DUSTFILM) A dust filter is installed in the indoor variant of the BTSE. The dust filter is an air filter and protects the BTSE against dust particles.

g If shelter SH:EMICRO-2V4 is used, dust filter is not available. Instead a membrane filter (MEF) is mandatory.

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4 Antenna Combining

4.1 Functionality of Combining Modules In order to serve cells with different carrier numbers and antenna configurations, certain combinations of combining modules are required. These configurations provide the nec-essary performance in an effective way.

4.1.1 FDUAMCO / DUAMCO The (F)DUAMCO (flexible duplexer amplifier multicoupler) modules contain duplex filters in order to combine the transmit and receive paths to one antenna connector. The receive and transmit part of the duplex filter, respectively, provide the substantial part of the receive and transmit band filtering required by GSM 05.05, 11.21 and JTC J-STD-007.

The (F)DUAMCO represents one LRU. The type of (F)DUAMCO required depends on the carriers to be combined to the antenna system. Its modules can be assigned to the same cell or to different cells.

g The frequency band of the (F)DUAMCO must correspond to the frequency band of the concerning cell to be served.

The (F)DUAMCO consists of two (identical) modules and a common part. Each module contains a duplex filter which combines the RX and the TX path together, to be fed to a common antenna.

Each RX path consists of: – the low noise amplifier (LNA), 2 branches – an attenuator (MUCO mode only) – multiple (4) equivalent outputs – a cascade output

The LNA ensures a low system noise figure and consists of two branches. In case of malfunction in one of the amplifiers, the RX gain of the (F)DUAMCO decreases by about 6 dB.

The LNA provides 4/8 outputs of the amplified received signal. These output ports are connected to the corresponding carrier units by jumper cables.

Each TX path consists of:– an isolator for the TX input – an antenna supervision unit (ASU) – for DUAMCO 4:2: hybrid coupler – for FDUAMCOs: jumpers for combining mode setting

The isolator for the TX input protects the power amplifiers (PAs) inside the carrier units from each other in order to assure the required inter-modulation suppression.

The (F)DUAMCO detects a VSWR alarm and generates a failure information towards the O&M (CAN bus interface). This information is subdivided in several levels with the following characteristics:

– VSWR < 2– 2 ≤ VSWR ≤ 3– VSWR > 3

no alarm or warning generation of warning “Minor VSWR fault”generation of VSWR alarm “Major VSWR fault”

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Except in 2:2 mode, a hybrid coupler feeds two TX inputs together to the TX path.

The common part consists of:– a DC/DC converter plus a power distribution unit (PDU) – an O&M interface

The DC/DC converter supplies the (F)DUAMCO itself. The PDU provides the DC power supply and the alarm monitoring of the TMAs. Alarm monitoring is done with a signalling interface between (F)DUAMCO and TMA, modulated onto a IF carrier at 7.86 MHz.

The O&M interface transmits error messages to the COBA via a O&M bus (CAN bus).

Operating Modes for (F)DUAMCO

The (F)DUAMCO has 2 operating modes. During the BTSE commissioning, the RX path must be switched into one of these modes (by DIP switches): • AMCO mode • MUCO mode

The high amplifying AMCO mode is used, if the antenna is directly connected to the (F)DUAMCO (without a preamplifier TMA). The (F)DUAMCO gain is around 20/22 dB.

The low amplifying MUCO mode is used in conjunction with a preamplifier (TMA). In the MUCO mode, the gain is reduced to about 2 dB. The gain of the (F)DUAMCO can be adjusted to the cable loss and the TMA gain with the DIP switch. This adjustment is only done once during the installation of the BTSE by the service personnel. In the case of an installed TMA, the additional gain (which is higher than the cable loss) needs to be adjusted by means of an attenuator inside the (F)DUAMCO.

The selected mode can be read by O&M software via CAN bus interface.

A DUAMCO 2:2 or 4:2 or FDUAMCO in 2:2 or 4:2 mode has 4 RX outputs per antenna.

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4.1.1.1 DUAMCO Specials

g The DUAMCO x:y are named depending on the number "x" of transmit connectors fed by the carrier units and the number "y" of antenna connectors.

Different versions of DUAMCO are available: • DUAMCO 2:2 to combine up to 2 carriers (DUAMCO2xxx types) • DUAMCO 4:2 to combine up to 4 carriers (DUAMCO4xxx types)

g DUAMCOs of different versions have a different TX attenuation.

If 2 carriers shall be combined to the antenna system, the TX output of each carrier unit has to be fed to a TX input of a DUAMCO 2:2. Combining of the 2 carriers takes place on air.

If more than 2 carriers shall be combined to the antenna system, a DUAMCO 4:2 is nec-essary.

The following figures show the block diagrams of the different types of DUAMCO:

Figure 12 DUAMCO 2:2 Block Diagram

ANT0

Module0 Module1

RXCA RX

CAN Bus0

LNA

LNA

TXRX RXRX00 1 2 3

MUCO

AMCO

Mode

Mode

TMADC + Signall.

DCCTRLO&M

-48 V

DUAMCO 2:2

BiasTEE

1 ACOM Slot

RX TX

ASU

RXCA RX1

LNA

LNA

TXRX RXRX10 1 2 3

MUCO

AMCO

Mode

Mode

BiasTEE

RX TX

ASU

ANT1

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Figure 13 DUAMCO 4:2 Block Diagram

4.1.1.2 FDUAMCO Specials Up to BR 7.0 max. 2 TRX are connected to one FDUAMCO. With the use of FlexCUs (from BR 8.0 onwards) max. 4 TRX can be connectd to one FDUAMCO.

Each half of the FDUAMCO can be configured in “One-To-One” mode (like DUAMCO 2:2) and “Two-To-One” mode (like DUAMCO 4:2) by means of jumper cables, which insert the 3 dB hybrid or not. ”One-To-One” means that the hybrid is not used, “Two-To-One” means that the hybrid is used.

The use of the integrated hybrid is optional (use of jumper cables).

g In case of 2 cells per shelter, an additional DIAMCO has to be equipped, if RX diversity is required.

g Between different shelters, RX signal wiring is not possible.

ANT0

Module0 Module1

RXCA RX

CAN Bus0

LNA

LNA

TXRX RXRX00 1 2 3

MUCO

AMCO

Mode

Mode

-48 V

DUAMCO 4:2

BiasTEE

1 ACOM Slot

RX TX

ASU

RXCA RX1

RX RXRX0 1 2 3

BiasTEE

RX TX

ASU

ANT1

Coupler

TX1

TX0

Coupler

TX1

LNA

LNA

MUCO

AMCO

Mode

Mode

TMADC + Signall.

DCCTRLO&M

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The following figure shows the block diagram of a FDUAMCO:

Figure 14 FDUAMCO Block Diagram

FDUAMCO

Tri-plexer

VSWRPROC

ANT1Testout1

RXout1

RXin1

Tri-plexer

VSWRPROC

ANT0Testout0

RXout0

RXin0

RXCA1RX0 RX2RX1 RX3

RXCA0 RX3RX1RX2RX0

TMASignall.

TMADC/DCConvert.

DC/DCConvert.

PID

CANControl.

DIPSwitch0

DIPSwitch1

Module0 Module1

1 ACOM Slot

TX1 TX0 TX1 TX02 1 4 3 2 1 4 3

3 dB Hybrid3 dB Hybrid

CAN Bus

RX TXFilter Filter

TX RXFilter Filter

LNA LNA

LNALNA

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4.1.2 DIAMCO The DIAMCO (dual integrated amplifier multicoupler) is required for the RX signal path in FICOM configurations and special DUAMCO configurations.

The DIAMCO is required to implement two cells/sectors with RX diversity in a base or extension shelter. The DIAMCO distributes the RX antenna signal to up to 8 TRX. Therefore it filters and distributes the received signals to the carrier units in one shelter. The receive filters provide the substantial part of the receive band filtering required by GSM 05.05, 11.21 and JTC J-STD-007.

One DIAMCO represents one LRU. Its modules can be assigned to the same cell or to different cells as long as they operate in the same frequency band.

g The frequency band of the DIAMCO must correspond to the frequency band of the concerning cell to be served.

The DIAMCO consists of 2 identical, independent modules and a common part.

Each module contains:– an RX filter – the low noise amplifier (LNA) – an attenuator– multiple (8) equivalent outputs – a cascade output

The LNA ensures a low system noise figure and consists of two branches. In case of malfunction in one of the amplifiers, the RX gain of the DIAMCO decreases by about 6 dB.

A DIAMCO has 8 RX outputs per antenna to distributes the received band to the carrier units.

The common part consists of:– a DC/DC converter plus a power distribution unit (PDU) for two TMAs – an O&M interface

The DC/DC converter supplies the DIAMCO itself. The functionality of a PDU for two TMAs by means of an antenna feeder cable is integrated. This is the DC power supply and the alarm monitoring of the TMAs. Alarm monitoring is done with a signalling inter-face between DIAMCO and TMA, modulated onto a IF carrier at 7.86 MHz: This inter-face is identical to the interface between (F)DUAMCO and TMA.

The O&M interface transmits error messages to the BTS core via a O&M bus (CAN bus).

Due to the fact that TMA status information is available for the DIAMCO processor, the DIAMCO itself has to switch the RX mode according to the TMA status. Each TMA can be switched on or off by a separate switch.

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Operating Modes for DIAMCO

The DIAMCO RX amplifier has two operating modes, depending on the existence of TMAs: AMCO mode and MUCO mode.

During the BTSE commissioning, the RX path must be switched into one of these modes: • AMCO mode • MUCO mode

The high amplifying AMCO mode is used, if the antenna is directly connected to the DIAMCO (without a preamplifier, e.g. TMA). The DIAMCO gain is around 20/22 dB.

The low amplifying MUCO mode is used in conjunction with a preamplifier (TMA). In the MUCO mode the gain is reduced to about 2 dB. The gain of the DIAMCO can be adjusted to the cable loss and the TMA gain with the DIP switch. This adjustment is only done once during the installation of the BTSE by the service personal. In the case of an installed TMA, the additional gain (which is higher than the cable loss) needs to be adjusted by means of an attenuator inside the DIAMCO.

The selected mode can be read by O&M software via CAN bus interface.

When cascading DIAMCOs, the first DIAMCO works in the AMCO mode and the follow-ing DIAMCO in the MUCO mode.

The following figure shows the block diagram of a DIAMCO:

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Figure 15 DIAMCO Block Diagram

ANT0

Module0 Module1

RXCA RX

CAN Bus

0

RX

LNA

LNA

RX RX RX RX0 1 2 3 4

RX RX RX5 6 7

MUCO

AMCO

Mode

Mode

ANT1

RXCA RX1

RX

LNA

LNA

RX RX RX RX0 1 2 3 4

RX RX RX5 6 7

MUCO

AMCO

Mode

Mode

TMADC + Signall.

DCCTRLO&M

-48 V

DIAMCO

BiasTEE

BiasTEE

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4.1.3 TMA In cell configuration with TMA, the true system RX sensitivity is guaranteed at the antenna connector, including the antenna feeder cable attenuation. For shelter configuration without antenna pre-amplifier, the sensitivity is guaranteed at the (F)DUAMCO/DIAMCO antenna connector.

The TMA (tower mounted amplifier) is an optional module and connects the antenna with the BTSE in order to amplify the receive signal and pass through the transmit signal. The TMA contains two duplex filters, each on one RF connector, to separate and combine the receive and transmit path inside the TMA.

The configuration with TMA is advantageous because of the compensation of the antenna feeder cable losses. One TMA is needed for each RX path of (F)DUAMCO/DIAMCO, in MUCO mode and not cascaded.

A TMA represents one LRU. There are two kinds of TMA: the "single TMA" (types TMA and STMA) and the "dual TMA" (type DTMA).

The single TMAconsists of: – 2 duplex filters to split RX and TX paths– the low noise amplifier (LNA) to amplify RX signals – "Fail Safe Functionality" to ensure operation in case of faulty LNA

A dual TMAconsists of two identical, independent single TMA modules. Two (S)TMAs may be replaced by one DTMA unit of the same frequency band.

The DC power for the TMA is fed into the triplexer by the power distribution unit (PDU) functionality of the (F)DUAMCO/DIAMCO (via the antenna feeder).

The encoder/decoder units of the TMA signalling interface generate an alarm for each TMA separately by monitoring the DC current consumption of each unit.

The following figures show the block diagrams of the TMA single and dual:

Figure 16 TMA (Single) Block Diagram

Single TMA ANT

IN

COM

OUT

Tri-plexer

RXFilter 2

RX TXFilter 1 Filter

FailSafeSwitch

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Figure 17 TMA (Dual) Block Diagram

When TMA is used the (F)DUAMCO/DIAMCO works in the MUCO (multicoupler) mode, see Operating Modes for (F)DUAMCO or Operating Modes for DIAMCO.

TMA 0 TMA 1

Dual TMA

ANT

IN

COM

OUT

Tri-plexer

RXFilter 2


ANT

IN

COM

OUT

Tri-plexer

RXFilter 2


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4.1.4 DiplexerThe diplexer gives the possibility to use one antenna feeder cable for both GSM 850 with GSM 1900 and GSM 900 with GSM 1800 frequencies. One diplexer is needed to combine the two different frequencies at the BTS side and the other one to separate the frequencies near the antennas.

The diplexer offers the possibility to reduce the number of antenna feeder cables in all cases where GSM 900 and GSM 1800, GSM 1900 or GSM 850 and GSM 1900 feeder cables have to be installed in parallel. For example: An existing GSM 900 network will be extended by a GSM 1800 or GSM 1900 network to implement a dual band network.

g The diplexer is a commodity product, which is available from many filter manufac-turers.

Figure 18 Configuration with Diplexer (Example)

Antenna Dual Band

900 MHz1800 MHz

Diplexer

DUAMCO 2:2

(1800 MHz)

DUAMCO 2:2

(900 MHz)

Diplexer

f1 f2

f1 + f2

f1 f2

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4.2 Combiner Losses (TX Path) The typical combiner TX attenuation was measured for mid band at room temperature. The guaranteed combiner TX attenuation was measured for the full frequency range, taking into account the full temperature range.

GSM 900, GSM 1800, GSM 1900

DUAMCO Type Typical Guaranteed

DUAMCO 2:2 1.2 dB 2.5 dB

DUAMCO 4:2 4.2 dB 5.7 dB

Table 9 Insertion loss of DUAMCOs

GSM 850 GSM 900 GSM 1800, GSM 1900

FDUAMCO Type Typical Guar. Typical Guar. Typical Guar.

in 2:2 mode 1.1 dB 2.4 dB 1.1 dB 2.2 dB 1.2 dB 2.2 dB

in 4:2 mode 4.3 dB 5.6 dB 4.3 dB 5.4 dB 4.4 dB 5.4 dB

Table 10 Insertion loss of FDUAMCOs

Type

GSM 900 GSM 1800

Typical Guaranteed Typical Guaranteed

TMA 0.5 dB 0.8 dB 0.5 dB 0.80 dB

Table 11 Insertion loss of TMA

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Cell Configurations

5 Cell Configurations

5.1 Examples of Possible Cell Configurations in the BTSE The following figures show an assortment of possible cell configurations.

The table “Assortment of Cell Configurations” on page 53 gives an abstract of numbers and type of carrier units in different configurations. Subsequent those cell configurations are shown in block diagrams.

g In the following table and figures "CU" stands for a carrier unit of either type GCU or ECU.

General Notes and Recommendations

– TX or RX combining beyond shelter border is not permitted / supported. – Within a cell, the same type of DUAMCO module shall be used, that means either

DUAMCO 2:2 or DUAMCO 4:2. – Within a cell, FDUAMCOs with the same jumper setting shall be used. – Within a cell, carrier units with same TX output power level shall be used.

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Cell Configurations

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For examples of Dual Band Configuration refer to Figure 28 (1/1/0) and Figure 29 (2/0/0).

Carrier per Cell Base Shelter Ext.1 Shelter Ext.2 Shelter Reference

1 Cell

2/0/0 2 x CU -- -- Figure 19

4/0/0 2 x FlexCU -- -- Figure 24

6/0/0 2 x CU 2 x CU 2 x CU Figure 23

8/0/0 2 x FlexCU 2 x FlexCU -- Figure 24

12/0/0 2 x FlexCU 2 x FlexCU 2 x FlexCU Figure 24

2 Cells

1/1/0 2 x CU 1) -- -- Figure 19

1/1/0 1 x FlexCU 1) -- -- Figure 25

2/2/0 2 x FlexCU 1) -- -- Figure 26

2/2/0 2 x FlexCU 1) 2) -- -- Figure 27


4/4/0 2 x FlexCU 2 x FlexCU -- Figure 24

6/6/0 2 x FlexCU 2 x FlexCU 1) 3) 2 x FlexCU Figure 24 (in Base and Ext.2 Shelter) together with Figure 26 (in Ext.1 Shelter)

3 Cells

2/1/1 2 x CU 2 x CU 1) -- Figure 20

2/1/1 1 x FlexCU 1 x FlexCU 1) -- Figure 24 (in Base Shelter) together with Figure 25 (in Ext.1 Shelter)


4/2/2 2 x FlexCU 2 x FlexCU 1) 3) -- Figure 24 (in Base Shelter) together with Figure 26 (in Ext.1 Shelter)

4/2/2 2 x FlexCU 2 x FlexCU 1) 2) -- Figure 24 (in Base Shelter) together with Figure 27 (in Ext.1 Shelter)

4/4/4 2 x FlexCU 2 x FlexCU 2 x FlexCU Figure 24

Table 12 Assortment of Cell Configurations

Legend:

1) 2)

3)

The DIAMCO is necessary for RX diversity. Each sector is still served even if one FlexCU fails. A cell configuration according to Figure 27 allows a BCCH reconfiguration to another FlexCU. A faulty FlexCU can be exchanged without an interruption of a cell or sector.FlexCU is not allocated to 2 cells. A cell configuration according to Figure 26 does not split the two TRXs of a FlexCU into different cells/sectors.

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Cell Configurations

Figure 19 Cell Configurations with a single Base Shelter (Examples)

Figure 20 Cell Configuration 2/1/1 Base Shelter and one Extension Shelter

CU0

Mod. 0

Cell configuration 1 / 1 / 0 Cell configuration 2 / 0 / 0 Cell configuration 1 / 1 / 0

without RX diversity with RX diversity with RX diversity

Base Rack Base Rack

RX TX

CU1

Mod. 1RX TX

CU0

Mod. 0

Base Rack

RX TX

CU1

Mod. 1RX TX

CU0 CU1

RX TXMod. 0

RX TXMod. 1

RX TX0 1

Extension Rack

CU0

Mod. 0

Base Rack

RX TX

CU1

Mod. 1RX TX

CU0 CU1

RX RXMod. 0

RX TXMod. 1

RX TX0 1

Cell 1 (1 TRX)

Cell 2 (1 TRX)

Cell 0 (2 TRX)

CU0

Mod. 0

Base Rack

RX TX

CU1

Mod. 1RX TX

Cell 0 (2 TRX)

CU0

Mod. 0

Base Rack

RX TX

CU1

Mod. 1RX TX

Cell 1 (2 TRX)

CU0

Mod. 0

Extension Rack 1

RX TX

CU1

Mod. 1RX TX

Cell 2 (2 TRX)

CU0

Mod. 0

Extension Rack 2

RX TX

CU1

Mod. 1RX TX

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Cell Configurations

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Figure 21 Cell Configuration 2/2/2 with Base and two Extension Shelters



Mod. 0

Base Rack

Mod. 1 Mod. 0

Extension Rack 2

Mod. 1

Extension Rack 1

CU1

RX RXMod. 0

RX TXMod. 1

RX TX0 1

Cell 0 (3 TRX) Cell 1 (3 TRX)

RX TX RX TX

CU0 CU1 CU0 CU0 CU1

RX TX RX TX

Cell 0 (6 TRX)

CU0

Mod. 0

Base Rack

RX TX

CU1

Mod. 1RX TX

CU0

Mod. 0

Extension Rack 1

RX TX

CU1

Mod. 1RX TX

CU0

Mod. 0

Extension Rack 2

RX TX

CU1

Mod. 1RX TX

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Cell Configurations

Figure 24 Cell Configuration for 1 cell 4/0/0 with 2 FlexCUs

TCH

Module 0

RX TXRX TX

FDUAMCO 4:2

BCCH TCH

Cell 0 (4 Carrier)

TX0 RX-AN0

RX-BD0

TX1 RX-CN1

RX-DD2

TX0 RX-AN0

RX-BD0

TX1 RX-CN1

RX-DD2

TCH

FlexCU1FlexCU0

TX1TX02 1 4 3

Module 1

RX TXRX TX

TX1TX02 1 4 3

AMCO

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Cell Configurations

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Figure 25 Cell Configuration for 2 cells 1/1/0 with 1 FlexCU

Cell 0 (1 Carrier)

Module 0

RX TXRX TX

FDUAMCO 2:2

TX1 TX02 1 4 3

TX1 TX0

BCCH BCCH

TX0 RX-AN0

RX-BD0

TX1 RX-CN1

RX-DD2

FlexCU

AMCO

Module 0

RX TXRX TX

2 1 4 3

Module 0

RXRX

MUCO

Module 1

DIAMCO

RXRX

Cell 1 (1 Carrier)

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Cell Configurations

Figure 26 Cell Configuration for 2 cells 2/2/0 with 2 FlexCUs - Variant A

ACOM

Module 0

RX TXRX TX

FDUAMCO 4:2

BCCH TCH

TX0 RX-AN0

RX-BD0

TX1 RX-CN1

RX-DD2

TX0 RX-AN0

RX-BD0

TX1 RX-CN1

RX-DD2

BCCH TCHFlexCU1FlexCU0

TX1 TX02 1 4 3

Module 1

RX TX

TX1 TX02 1 4 3

Module 0

RXRX

MUCO

Module 1

DIAMCO

Cell 0 (2 Carrier)

Cell 1 (2 Carrier)

RX TX RXRX

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Cell Configurations

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Figure 27 Cell Configuration for 2 cells 2/2/0 with 2 FlexCUs - Variant B

ACOM

Module 0

RX TXRX TX

FDUAMCO 4:2

BCCH TCH

TX0 RX-AN0

RX-BD0

TX1 RX-CN1

RX-DD2

TX0 RX-AN0

RX-BD0

TX1 RX-CN1

RX-DD2

BCCH TCHFlexCU1FlexCU0

TX1 TX02 1 4 3

Module 1

RX TX

TX1 TX02 1 4 3

Module 0

RXRX

MUCO

Module 1

DIAMCO

Cell 0 (2 Carrier)

Cell 1 (2 Carrier)

RX TX RXRX

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Cell Configurations

5.2 Dual Band Configuration Configuration of a BTSEplus is possible with one core controller unit. The following com-binations are possible: – GSM 850 and GSM 1900– GSM 900 and GSM 1900 (for BR8.0 and higher)– GSM 900 and GSM 1800

The decision for the operating frequency bands must be done separately for each cell. For the BS-82 II a separate shelter must be assigned to each frequency band because dual band operation cannot be implemented with a single (F)DUAMCO unit.

ACOM equipment (DUAMCO/FDUAMCO modules) and carrier unit have to be chosen for the appropriate frequency band of the cell. The installation of ACOM and carrier unit should be done according to the list of standard configurations for first installation. Please pay attention for those configurations in the list, which use only one module of the antenna combiner and multicoupler. It is not possible to assign the modules or LRU of one antenna combiner to cells of different frequency bands.

g For installation of the antennas, please pay attention for the decoupling of the anten-nas, which must be > 30 dB.

Figure 28 Dual Band Configurations (1/1/0 Examples)

Base Rack

TRX0 TRX1

RX RXMod. 0

RX TXMod. 1

RX TX

GSM 900 (1 / 1 / 0) with RX diversity GSM 1800 (1 / 1 / 0) with RX diversity

0 1

Extension Rack 1

TRX0 TRX1

RX RXMod. 0

RX TXMod. 1

RX TX0 1

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Figure 29 Dual Band Configurations (2/0/0 Examples)

g The assignment of frequency bands to base or extension shelter is shown as examples only.

g The extension-2 shelter can be applied to increase the number of TRX for one fre-quency band only.

GSM 850 or GSM 900 (2 / 0 / 0) GSM 1800 or GSM 1900 (2 / 0 / 0)

TRX0

Mod. 0

Base Rack

RX TX

TRX1

Mod. 1RX TX

TRX0

Mod. 0

Extension Rack 1

RX TX

TRX1

Mod. 1RX TX

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FCC Issues (for U.S. Market only)

6 FCC Issues (for U.S. Market only)In this chapter you find the power reduction for corner frequencies of carrier units avail-able in the USA. These values are only relevant for the U.S. market.

Revised FCC Certification for ECU / FlexCU 850

For ECUs/FlexCUs with 869.2 and 893.8 MHz frequencies, in order to fulfil the FCC requirements in the USA, the maximum transmitting power of the corner frequencies of the GSM 850 band (channel numbers 128 and 251, and 869.2 MHz and 893.8 MHz respectively) is decreased for all carrier units available for the U.S. market.

This function is required by law and is therefore implemented as a fixed software com-ponent, which cannot be changed or removed locally.

The BTS evaluates the mobile country code (MCC) provided by the BSC via the attribute "cellGlobalIdentity". If the MCC indicates "USA", the BTS reduces the output power of the corner frequencies dependent on the hardware type of the carrier unit. The following table represents the power reduction values for GMSK and 8PSK modulation.

Carrier Unit Type GMSK 8PSK

128 251 128 251

ECU V2 -8 dB -4 dB -4 dB -2 dB

ECU HPV2 -6 dB -4 dB -4 dB -2 dB

ECU V3(A) -6 dB -4 dB -4 dB -2 dB

FCU V1 -8 dB -8 dB -4 dB -4 dB

Table 13 Carrier Units’ Power Reduction (ECU/FlexCU 850) at Antenna Port

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FCC Issues (for U.S. Market only)

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Revised FCC Certification for ECU / FlexCU 1900

For ECUs/FlexCUs with 1930.2 and 1989.8 MHz frequencies, in order to fulfil the FCC requirements in the USA, the maximum transmitting power of the corner frequencies of the GSM 1900 band (channel numbers 512 and 810, and 1930.2 MHz and 1989.8 MHz respectively) is decreased for all carrier units available for the U.S. market.

This function is required by law and is therefore implemented as a fixed software com-ponent, which cannot be changed or removed locally.

The BTS evaluates the mobile country code (MCC) provided by the BSC via the attribute "cellGlobalIdentity". If the MCC indicates "USA", the BTS reduces the output power of the corner frequencies dependent on the hardware type of the carrier unit. The following table represents the power reduction values for GMSK and 8PSK modulation.

Carrier Unit Type GMSK 8PSK

512 810 512 810

ECU V2 -4 dB -2 dB -2 dB -0 dB

ECU HPV2 -8 dB -6 dB -4 dB -2 dB

ECU V3(A) -8 dB -6 dB -4 dB -2 dB

FCU V1 -8 dB -8 dB -4 dB -4 dB

Table 14 Carrier Units’ Power Reduction (ECU/FlexCU 1900) at Antenna Port

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Index

AAbis connection 38Abis interface configurations 11Abis link equipment 38ABISCON 38Abis-interface 26AC input lightning protection 35AC/DC system 34ACLK 26ACPROTECT 35AC-supplied BTSE 34, 35, 36AMCO mode 41, 46

and TMA 33

Bbackup batterie 35batterie backup 35

Ccarrier units 28

ECU 28FlexCU 29GCU 28output power level 30

CC-link 26cell configuration (examples) 52cell configurations 10COBA 26combiner losses 51combining modules 31, 40

DIAMCO 32, 45Diplexer 50DUAMCO 31, 40FDUAMCO 32, 40losses (TX path) 51TMA 33, 48

configuration 10core module COBA 26corner frequency 62

DDC and battery controller 36DC module 35DC panel (DCP) 36DCBCTRLM 36DC-supplied BTSE 35, 36DIAMCO 32

functionality 45dimensions 12Diplexer 50

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double TRX mode 29dual band configuration 60dual band configurations 11dual TMA 48DUAMCO 31

functionality 40insertion loss 51specials 42

dust filter 39DUSTFILM 39

EECU 28

FCC certification 62, 63output power level 30

emergency operation 35examples of cell configuration 52

Ffan unit 38FCC certification 1900 63FCC certification 850 62FDUAMCO 32

functionality 40insertion loss 51specials 43

filterdust 39membrane 39

FlexCU 29FCC certification 62, 63operation modes 29output power level 30

fourfold receive diversity mode 29frequency bands 13frequency hopping 11

GGCU 28

output power level 30

Hheater 39

Iingress protection rating 13

LLE 38link equipment 38losses (TX path) 51

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MMEF 39membrane filter 39min/max configuration 10mounting 13MUCO mode 41, 46

and TMA 33

Ooutput power 30overvoltage protection and tracer 37OVPT 37

Ppole mounting 13power consumption 12power supply modules

AC input lightning protection 35AC/DC system 34battery backup 35DC and battery controller 36DC module 35DC panel 36emergency operation 35overview 34

Rrelease (SBS) 9release differences 11RF output power 30

SSBS releases 9, 11single TMA 48single TRX mode 29

Ttechnical data 12temperature range 13TMA 33

functionality 48insertion loss 51

traffic channels 11TRX mode (FlexCU) 29TRX per BTSE 12TRX per cell 12

Vvoltage range 12volume 12

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Wwall mounting 13weight 13

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