Transmission

Huawei

OptiX RTN 600

Operation and Maintenance

Training

Copyright © 2010 Huawei Technologies Co., Ltd

All Rights Reserved

No part of this manual may be reproduced or transmitted in any form or by any means

without prior written consent of Huawei technologies Co., Ltd

Trademarks

HUAWEI, C&C08, EAST8000, HONET, ViewPoint, Intess, ETS, DMC, TELLIN, InfoLink,

Netkey, Quidway, SYNLOCK, Radium, M900/M1800, TELESIGHT, Quidview, Musa, Airbridge, Tellwin, Inmedia, VRP, DOPRA, iTELLIN, HUAWEI Optix, C&C08 iNET, NETENGINE, Optix, SoftX, iSite, U-SYS, iMUSE, OpenEye, Lansway, SmartAX are trademarks of Huawei Technologies Co., Ltd.

All other trademarks mentioned in this manual are the property of their respective holders.

Notice The information in this manual is subject to change without notice, every effort has been made in the preparation of this manual to ensure accuracy of the contents, but all statements, information, and recommendations in this manual do not constitute a warranty of any kind, express or implied.

TABLE OF CONTENT

• OptiX RTN 600 Equipment System Description …………………….1

• OptiX RTN 600 Series Installation……………………………………..43

• OptiX RTN 600 V100R003 Networking and Protection…………….68

• OptiX RTN 600 Equipment Commissioning …………………………86

• OptiX RTN 600 Data Configuration…………………………………...113

• OptiX RTN 600 Alarm and Performance Event ………………….....140

• OptiX RTN 600 Routine Maintenance ………………………………..153

• OptiX RTN 600 Troubleshooting………………………………………165

www.huawei.com

Copyright © 2008 Huawei Technologies Co., Ltd. All rights reserved.

OptiX RTN 600

System Description


Foreword

� The OptiX RTN 600 radio transmission system is a split-mount

digital microwave transmission system developed by Huawei

� The maximum microwave transmission capacity are 2 STM-1s.

� The OptiX RTN 600 provides various service interfaces and

features flexible configuration and easy installation. The OptiX

RTN 600 can construct a radio transmission network that serves

as backhaul links for mobile communication networks or private

networks.

� The OptiX RTN 600 can also construct a hybrid network that is

used to transmit SDH, PDH, and Ethernet services together with

the OptiX series optical transmission products of Huawei.

1


Objectives

� Upon completion of this course, you will be able to:

� Describe the main characteristics of OptiX RTN 600.

� Describe the system structure, functions and application of every

units.

� List all the protection modes which supported by OptiX RTN 600.

� Configure the OptiX RTN 600 equipment for all types of the network

application.

� Explain the functions of AM and Hybrid Microwave


Contents

1. Equipment System

2. Equipment Protection

3. Networking Application

2


Contents

1. Equipment Overview

� 1.1 Equipment Components

� IDU

� ODU

� Antenna

� Intermediate Frequency (IF) Cable

� Hybrid coupler

� 1.2 Equipment Characteristics


Equipment Components

Hybrid coupler

IF cable

IDU

ODU

Antenna

Pole

3


IDU

� OptiX RTN 600: IDU 610 is 1U

height and supports one 1+0

microwave direction.

� OptiX RTN 600: IDU 620 is 2U

height and supports maximum

four 1+0 microwave directions or

two groups of 1+1 microwave

directions and Hybrid Microwave.

IDU 610

IDU 620


IDU (Cont.)

IDU 605 2B

IDU 605 1B

IDU 605 1A

� OptiX RTN 600: IDU 605 is

1U height and supports one

1+0 or one 1+1 microwave

direction. It consists 5 models

� IDU 605 1A: providing 5 E1s

� IDU 605 1B: providing 16 E1s

� IDU 605 2B: providing 16 E1s

and 1＋1 microwave protection

� IDU 605 1F: providing 16 E1s and

3xFE+1xGE/FE

� IDU605 2F: providing 16 E1s

3xFE+1xGE/FE and 1＋1 microwave

protection

4


IDU Structure (IDU 610)

� IDU 610 is 1U high and

adopts the nature heat

dissipation mode.

� Support 1+0 configuration.

EXT slot3

PXC slot1

EXT slot4

SCC slot2

Note: The slot numbering rule is from bottom to up and left to right.

IF boardLine board and tributary board


IDU Structure (IDU 620)

� IDU 620 is 2U high and dissipates

heat through wind cooling.

� Support a maximum of 4+0

configuration or two groups of 1+1

configuration.

slot

20 PXC slot3

PXC slot1

EXT slot4

SCC slot2

EXT slot5 EXT slot6

EXT slot7 EXT slot8 The slot numbering rule is the same as IDU 610 .

5


IDU Board -- IF Board IF1A

ODU powersupply switch

IF cable interface Indicators


IDU Board -- IF Board IFX

IF cable

interfaceInput/output ports

of XPIC

compensation

signal

ODU

power

switch

Indicators

� IFX only supports STM-1 service, support the XPIC

function

6


IDU Board -- IF Board IFH2

� IFH2 supports hybrid microwave and AM

IF cable

interfaceGE

interfaceIndicators

ODU

power

switch


IF1B

IF Board -- Types

IF1A/B

� Supporting PDH only

� Used for IDU 620 to

interconnecting with IDU 605

IF0A/B

� Supporting PDH and SDH

� Used for IDU 610 and

IDU 620

IFX

� Supporting SDH only

� Providing XPIC function

� Used for IDU 620 only

IFH2A/B

� Providing hybrid

microwave function

(E1+Ethernet)

� Used for IDU 620 only

7


IF Board -- Board Installation

slot

20 PXC slot3

PXC slot1

EXT slot4

SCC slot2

EXT slot7

EXT slot3

PXC slot1

EXT slot4

SCC slot2

IDU 610

IDU 620

EXT slot5

EXT slot8

EXT slot6

①①①①

②②②②

③③③③

④④④④

Paired Slots

Paired Slots

Recommended

installation

sequence for IF

boards


IF Board -- IF Performance

� The modulation mode and capacity supported by IF1A and IF1B.

ItemsPerformance

4 × E1 8 × E1 16 × E1 STM-1

ModulationQPSK

16QAM QPSK 16QAM QPSK 16QAM 128QAM

Chan. spacing

（MHz）7 3.5

13.75 /14 a

727.5/

28 b

13.75 /14 a

27.5 / 28 b

ItemsPerformance

E3 22E1 26E1 32E1 35 E1 44 E1 53 E1

Modulation QPSK 16 QAM 32 QAM 64 QAM 128 QAM 16 QAM 32 QAM 64 QAM

Chan. spacing

（MHz）

28 14 14 14 14 28 28 28

8


IF Board -- IF Performance (Cont.)

� The modulation mode and capacity supported by IF0A and IF0B.

ItemsPerformance

16× E1 10 × E1 5 × E1 2 × E1

Modulation QPSK QPSK QPSK QPSK

Channel

Spacing

(MHz)

28(27.5) 14(13.75) 7 3.5



� The modulation mode and capacity supported by IFH2.

2144256QAM7

1838128QAM7

163264QAM7

122532QAM7

92016QAM7

410QPSK7

Maximum E1 Service Capacity

Service Capacity

(Mbit/s)

Modulation

Scheme

Channel

Spacing (MHz)

9




4390256QAM14 (13.75)

3778128QAM14 (13.75)

326664QAM14 (13.75)

245132QAM14 (13.75)

204216QAM14 (13.75)

920QPSK14 (13.75)


Service Capacity

(Mbit/s)

Modulation

Scheme

Channel

Spacing (MHz)




75183256QAM28 (27.5)

75158128QAM28 (27.5)

6413364QAM28 (27.5)

5010532QAM28 (27.5)

408416QAM28 (27.5)

2042QPSK28 (27.5)


Service Capacity (Mbit/s)

Modulation Scheme

Channel Spacing (MHz)

10




75-64QAM40

75363256QAM56

75313128QAM56

7526564QAM56

7520832QAM56

7516816QAM56

4084QPSK56


Service Capacity (Mbit/s)

Modulation Scheme

Channel Spacing (MHz)


IFX – Typical Configuration

� One NE configuration

Signal

compensation

cable

Waveguide

or RF cable

11


IFX – Typical Configuration (Cont.)

� Dual NEs configuration

Signal

compensation

cable

Waveguide

or RF cable


IDU Board -- Tributary Board PH1

Indicator 1-8 channel E1

DB44

interfaces

9-16 channel E1

DB44 interfaces

12


Tributary Board -- Types

� 32-channel E1

interfaces

� 75/120 ohm

PD1A/B

� 16-channel

E1 interfaces

� 75/120 ohm

PH1A/B PL3PO1A/B

� 8-channel E1

interfaces

� 75/120 omh

� 3-channel

E3/DS3 interfaces

� 75 ohm

4 or 8 groups of

jumpers

determine the

resistance.

Front

panel

� The interface resistance of

PD1/PH1/PO1 boards are set

through the jumpers:

� If there is a jumper, the

resistance is 75 ohm.

� If there is no jumper, the

resistance is 120 ohm.


Tributary Board -- Board

installation

slot

20 PXC slot3

PXC slot1 SCC slot2

EXT slot7

PXC slot1

EXT slot4

SCC slot2

IDU 610

IDU 620

EXT slot5

EXT slot8

EXT slot6

①①①①

Recommended

installation

sequence for TU

boards

②②②②

③③③③

④④④④

EXT slot4

EXT slot3

13


IDU Board -- Line Board SD1/SDE

SMBelectrical interface

LC optical interface


Line Board -- Types

SD1

� Dual-port STM-1

optical interface

Ie-1interface

S-1.1interface

L-1.1interface

L-1.2interface

SL1

� Single- port STM-1

optical interface

Ie-1interface

S-1.1interface

L-1.1interface

L-1.2interface

SDE

� dual-port STM-1

electrical interface

SLE

� Single-port STM-1

electrical interface

14


Line Board -- Interface Parameters

10108.28.2Minimum extinction ratio (dB)

-10-10-8-14Minimum overload (dBm)

-34-34-28-23Minimum sensitivity (dBm)

－5~0－5~0－15~－8－19~－

14Average transmit optical

power (dBm)

1480-15801263-13601261-13601260-1360Working wavelength (nm)

80/10040150.5Transmission distance (km)

G.652G.652G.652Multi-

mode fiberOptical fiber type

L-1.2L-1.1S-1.1Ie-1Application code

155520Nominal bit rate (kbit/s)

PerformanceItem


Line Board -- Board installation

slot

20 PXC slot3

PXC slot1 SCC slot2

PXC slot1

EXT slot4

SCC slot2

IDU 610

IDU 620

EXT slot5

EXT slot8

EXT slot6

①①①①

②②②②

③③③③

④④④④

EXT slot4

EXT slot3

⑤⑤⑤⑤ EXT slot7

Recommended

installation

sequence for LU

boards

15


IDU Board -- Ethernet Board

RJ45 & LC

RJ45

� EFT4 is the transparent Ethernet service board, processing 4 FE

services

� EMS6 is the Ethernet layer 2 processing board, processing 4 FE

and 2 GE services.


IDU Board -- Ethernet Board EFT4

� EFT4 is a Ethernet transparently transmission board. It receives,

transmits and processes four-channel Ethernet signals.

slot

20 PXC slot3

PXC slot1 SCC slot2

EXT slot7

PXC slot1

EXT slot4

SCC slot2

IDU 610

EXT slot5

EXT slot8

EXT slot6

①①①①

②②②②

③③③③

④④④④

EXT slot4

EXT slot3

IDU 620

Recommended

installation

sequence for

EFT4 boards

16


Ethernet Board -- EFT4

� Ethernet Service Signal Processing

� Multiple working mode for port, JUMBO frame, flow control

� Encapsulation and Mapping of Ethernet Service Signals

� Multiple encapsulation protocols, 2 VC4 uplink, 4 internal ports, VC12

and VC3 level virtual concatenation, LCAS

� Maintenance features

� Loopback at different layer, GFP testing frame, reset


EMS6 -- Board installation

� EMS6 can only be installed in IDU 620

slot

20 PXC slot3

PXC slot1 SCC slot2

IDU 620

EXT slot8

EXT slot6

EXT slot4

Recommended

installation sequence for

EFT4 boards

②②②②

①①①①

EXT slot7

EXT slot5

④④④④

③③③③

17


Ethernet Board -- EMS6

� Ethernet Service Signal Processing

� Multiple working mode for FE and GE ports, JUMBO frame, flow

control

� Encapsulation and Mapping of Ethernet Service Signals

� Multiple encapsulation protocols, 2 VC4 uplink, 8 internal ports, VC12

and VC3 level virtual concatenation, LCAS

� Maintenance features

� Loopback at different layer, GFP testing frame, reset


EMS6 – Typical Configuration

EMS6

FE

GE

GE

IFH2

ODU ODU GE

EMS6

FE

GE

IFH2

FE FE

Cable Connection

Signal Flow

PO1 PO1

PXC PXC

E1 E1

18


Power Cross-Connection Clock

Board -- PXC

IndicatorIDU

Power

switch

External clock/

Wayside

interface

Power input

interface


PXC -- Board Installation

IDU 610

slot

20 PXC slot3

PXC slot1 SCC slot2

EXT slot7

IDU 620

EXT slot5

EXT slot8

EXT slot6

①①①①

②②②② EXT slot4

PXC slot1

EXT slot4

SCC slot2

EXT slot3

19


IDU Board -- SCC

Indicators

Indicator

test button

Reset

button

NM serial

port

NM

interface

NM cascaded

interface

Order wire

Asynchronous data and

Boolean

interface

Flash

memory


SCC Board -- Board Installation

slot

20 PXC slot3

PXC slot1 SCC slot2

EXT slot7

IDU 610

IDU 620

EXT slot5

EXT slot8

EXT slot6

EXT slot4

PXC slot1

EXT slot4

SCC slot2

EXT slot3

20


IF jumper IF cable

IF Cable

� Three types of IF cable in OptiX RTN 600:

� IF jumper: connection between IDU and other IF cable.

� 1/2 inch and RG-8U cable: connection between ODU and IF jumper.

� RG-8U cable is used for the distance less than 180 meter.

� 1/2 inch cable is used for the distance between 180m and 300m.


ODU

� Outdoor unit (ODU) realizes the

mutual conversion between IF

analog signal and RF signal.

� ODU is irrelevant to the microwave

transmission capacity.

� An ODU in OptiX RTN 600 can

support capacity from 4 E1s to one

STM-1.

21


ODU -- Interface

< 5 kg Power consumption: < 40WWeight:

< 260 mm X 260 mm X 92 mm (width X height X depth)Dimension:

Grounding

double-screw bolt

RSSI test

interfaceIF interface

Antenna

port


ODU -- Types

� OptiX RTN 600 provides full frequency coverage and multiple

ODU, it consists SP,HP and LP series for different conditions.

ItemsDescription

SP series HP series LP series

Freq. band 6/7/8/11/13/15/1

8/23/26/38

7/8/11/13/15/18/23

/26/32/38

7/8/11/13/15/1

8/23

Service SDH / PDH PDH

Modulation QPSK/16QAN/32QAM/64QAM/128Q

AM/256QAM

QPSK/16QA

M

Output power Standard High normal

22


Relation Between ODU and IDU

IDU IF boardCorrespondin

g ODURemark

IDU

605Fix (IF0) LP/SP LP first.

IDU

610IF1A/IF1B SP

IDU 610 only use SP, for the

natural dissipation

IDU

620

IF1A/IF1B SP/HP --

IF0 LP/SPIF0 interconnecting with IDU

605, choose LP first.

IFX/IFH2 SP/HP --


ODU -- Freq. Performance

� ODU covers from 6G to 38G frequency bands by 3 series, the

frequency parameters of LP series is:

1008，1200，123221.200～23.61823GHz

1008，1010，1092.5，156017.685～19.71018GHz

315，420，475，490，640，644，72814.400～15.35815GHz

26612.750～13.25013GHz

490，500，53010.675～11.74511GHz

119，126，151.614，208，266，311.327.718～8.4978GHz

154，160，161，168，196，2457.093～7.8977GHz

T/R spacing in one channel（MHz）Freq. range (GHz)Freq.

23


ODU -- Freq. Performance (Cont.)

� The frequency parameters of SP series is:

700，126037.044～40.10538GHz

800，100824.250～26.45326GHz

1008，1200，123221.200～23.61823GHz

1008，1010，156017.685～19.71018GHz

315，420，475，490，640，644，72814.400～15.35815GHz

26612.751～13.24813GHz

490，500，53010.675～11.74511GHz

119，126，151.614，208，266，311.327.731～8.4978GHz

154，160，161，168，196，2457.093～7.8977GHz

252.04，300（L6）340（U6）

5.850～6.425（L6）6.425～7.125（U6）

6GHz

T/R spacing in one channel (MHz)Freq. range (GHz)Freq.


ODU -- Freq. Performance (Cont.)

� The frequency parameters of HP series is:

700，126037.044～40.10538GHz

81231.815～33.38332GHz

800，100824.250～26.45326GHz

1008，1200，123221.200～23.61823GHz

1008，1010，156017.685～19.71018GHz

315，420，475，490，640，644，72814.400～15.35815GHz

26612.751～13.24813GHz

490，500，53010.675～11.74511GHz

119，126，151.614，208，266，311.327.731～8.4978GHz

154，160，161，168，196，2457.093～7.8977GHz

T/R spacing in one channel (MHz)Freq. range (GHz)Freq.

24


ODU -- Power Performance

Item

Freq.

band

Typical value of receiver sensitivity (dBm)

2×E1 5×E1 10×E1 16×E1 4×E1 8×E1 16×E1

QPSK QPSK QPSK QPSK QPS

K

16QAM QPSK 16QA

M

QPS

K

16QAM

6GHz –94.5 –91.0 –88 –85.5 –91.5 -87.5 -88.5 -84.5 -85.5 -81.5

7GHz –94.5 –91.0 –88 –85.5 –91.5 -87.5 -88.5 -84.5 -85.5 -81.5

8GHz –94.5 –91.0 –88 –85.5 –91.5 -87.5 -88.5 -84.5 -85.5 -81.5

11GH

z

–94.0 –90.5 –87.5 –85 –91.0 -87 -88 -84 -85 -81

13GH

z

–94.0 –90.5 –87.5 –85 –91.0 -87 -88 -84 -85 -81

15GH

z

–94.0 –90.5 –87.5 –85 –91.0 -87 -88 -84 -85 -81

18GH

z

–94.0 –90.5 –87.5 –85 –91.0 -87 -88 -84 -85 -81

23GH

z

–93.5 –90.0 –87 –84.5 –90.5 -86.5 -87.5 -83.5 -84.5 -80.5

26GHz

–93.5 –90.0 –86.5 –84 –90 -86 -87 -83 -84 -80

32GH

z

NA NA NA NA –89 NA -86 -82 -83 -79

38GH

z

–91.5 –88 –85 –82.5 –88.5 -84.5 -85.5 -81.5 -82.5 -78.5


ODU -- Power Performance (Cont.)

Item

Freq.

band

Typical value of receiver sensitivity (dBm)

22×E1 26×E1 32×E1 35×E1 44×E1 53×E1 E3 STM-1

32QAM 64QAM 128QAM 16QAM 32QAM 64QAM QPSK 16QAM 128QAM

6GHz -78 -73 -71 -78.5 -75 -70 -85 -80.5 -69.5

7GHz -78 -73 -71 -78.5 -75 -70 -85 -80.5 -69.5

8GHz -78 -73 -71 -78.5 -75 -70 -85 -80.5 -69.5

11GHz

-77.5 -72.5 -70.5 -78 -74.5 -69.5 -84.5 -80 -69

13GH

z

-77.5 -72.5 -70.5 -78 -74.5 -69.5 -84.5 -80 -69

15GHz

-77.5 -72.5 -70.5 -78 -74.5 -69.5 -84.5 -80 -69

18GH

z

-77.5 -72.5 -70.5 -78 -74.5 -69.5 -84.5 -80 -69

23GHz

-77 -72 -70 -77.5 -74 -69 -84 -79.5 -68.5

26GH

z

-76.5 -71.5 -69.5 -77 -73.5 -68.5 -83.5 -79 -68

32GH

z

-75.5 -70.5 -68.5 -76 -72.5 -67.5 -82.5 -78 -67

38GHz -75 -70 -68 -75.5 -72 -67 -82 -77.5 -66.5

25



Item

SP series ODU

6G 7G 8G 11G

13G

15G

18G

23

G

26

G

38

G

Max. output (dBm)

QPSK 2625.5

25.5

24.5 24.5 24.5 24 22.5 22 20.5

16/32QAM 24 21 21 20 20 20 20 19 18 16

64/128QAM

23 15 15 14 14 14 14 13 12 10

Min. outout

-4 dBm

Overload －20 dBm，－23 dBm（64/128QAM）

Stability ±5 ppm

[Note]: If the transmitting power exceeds the maximum level ,the Bite Error

will be generated in the service.



ItemHP series ODU

7G 8G 11G 13G 15G 18G

23G 26G 32G 38

GMax.

output (dBm)

QPSK 30 30 28 26 26 25.5 25 25 23 23

16/32QAM 26 26 26 23 23 22 22 22 21 20

64/128QAM

24 24 21 18 18 17 17 17 16 16

Overload －20 dBm，－23 dBm（64/128QAM）

Stability ±5 ppm

26



ItemLP series ODU

7G 8G 11G 13G 15G 18G 23G

Max. output (dBm)

QPSK 27 27 25 25 23.5 23.5 23

16QAM21 21 19 19 17.5 17.5 17

Min. outout

0 dBm

Overload －20 dBm

Stability ±5 ppm


ODU – Product Label

� The ODU parameters and types can be get from the ODU label

①: Freq. band

②：S-SDH/PDH, P-PDH

③：T/R spacing (MHz)

④：Sub-freq. band

⑤：P- high site, N－low

site⑥：S-Standard power, H-

high power

① ②

①: Freq. band

②: ODU type

①: Transmit freq. band (MHz)

②: T/R spacing (MHz)

③: Hi-high site, Lo- low site

27


Hybrid Coupler

� When two ODUs share one antenna, the ODUs must be

connected to an RF signal coupler/ splitter (hybrid coupler). Then,

the hybrid coupler is connected to the antenna.


Hybrid coupler – Main Performance

Item Performance

Flatness (dB) ≤0.5

Loss (dB) 3.3±0.3（3dB balance coupler）

≤1.7 (6dB un-balance waveguide interface)

≤1.9 (6dB un-balance coaxial interface)

Degree of coupling

(dB)

3.3±0.3 (3dB balance coupler)

6.5±0.6 (6dB un-balance coupler)

Isolation (dB) ≥20

Voltage standing

wave ratio (VSWR) ≤1.2

Dimension (width x

depth x height)

< 220 mm x 334 mm x 252 mm (waveguide interfaces)

< 100 mm x 300 mm x 120 mm (coaxial interfaces)

Weight (kg) <5

28


Hybrid coupler -- Product Label

� The hybrid coupler parameters and types can be get from it’s label

①: Type

②: Freq. band

③: B-balance

U-unbalance

④: 03-coupling 3dB

06-coupling 6d

⑤: antenna interface:

c-round waveguide, R-rectangular

waveguide, F-flange

⑥: ODU interface

c-round waveguide, R-rectangularwaveguide, N: type-N, female

①: working freq. range (MHz)

②: coupling (dB) between the primary

branch and the secondary branch.


Antenna

� The antenna implements the

directional transmission and

reception of RF signals. The

main parameters are frequency

band, diameter and antenna gain.

29


Antenna -- Main Performance

1.5°68 dB40.8

dBi

41.2

dBi

41.8

dBi

24.25 –

26.5

VHLP

2-26-

RR1

17.7 dB1.3

1.0 °61 dB43.4

dBi

43.7

dBi

44.0

dBi

31.8 –

33.4

VHLP

2-32-

RR1

1.7°66 dB39.8

dBi

40.4

dBi

41.0

dBi

21.2 –

23.6

VHLP

2-23-

RR1

2.1°

30 dB

67 dB38.3

dBi

38.7

dBi

39.1

dBi

17.7 –

19.7

VHLP

2-18-

RR1

Return

LossVSWR

Beamwidth,

VerticalXPD

Front-to-

Back Ratio

Gain,

Low

Band

Gain,

Mid

Band

Gain,

Top

Band

Frequency

Band (GHz)Type



17.7 dB1.31.3°30 dB68 dB41.8

dBi

42.2

dBi

42.7

dBi37.0 - 40.0

VHLP

2-38-

RR1

Return

LossVSWR

Beamwidth,

VerticalXPD

Front-to-

Back Ratio

Gain,

Low

Band

Gain,

Mid

Band

Gain,

Top

Band

Frequency

Band (GHz)Type

17.7 dB1.3

0.6°75 dB47.0

dBi

47.4

dBi

47.8

dBi

24.25 –

26.5

VHLP

4-26-

RR1A

0.8°74dB46.0

dBi

46.7

dBi

47.0

dBi21.2 – 23.6

VHLP

4-23-

RR1A

0.9°

30 dB

72 dB44.2

dBi

44.7

dBi

45.1

dBi17.7 – 19.7

VHLP

4-18-

RR1A

Return

LossVSWR

Beamwidth,

VerticalXPD

Front-to-

Back Ratio

Gain,

Low

Band

Gain,

Mid

Band

Gain,

Top

Band

Frequency

Band (GHz)Type

30



17.7 dB1.3

1.2°71 dB42.7

dBi

42.9

dBi

43.1

dBi

14.25 –

15.35

VHLP

4-15-

RR1A

1.3°68 dB41.9

dBi

42.0

dBi

42.1

dBi

12.7 –

13.25

VHLP

4-13-

RR1A

1.5°

30 dB

67 dB40.0

dBi

40.4

dBi

40.8

dBi

10.7 –

11.7

VHLP

4-11-

RR1A

2.2°32 dB63 dB36.8

dBi

37.3

dBi

37.7

dBi

7.125 –

8.5

VHLP

4-7W-

RC1A

Return

LossVSWR

Beamwidth,

VerticalXPD

Front-to-

Back Ratio

Gain,

Low

Band

Gain,

Mid

Band

Gain,

Top

Band

Frequency

Band (GHz)Type



17.7 dB1.3

1.2°71 dB42.7

dBi

42.9

dBi

43.1

dBi

14.25 –

15.35

VHLP

4-15-

RR1A

1.3°68 dB41.9

dBi

42.0

dBi

42.1

dBi

12.7 –

13.25

VHLP

4-13-

RR1A

1.5°

30 dB

67 dB40.0

dBi

40.4

dBi

40.8

dBi

10.7 –

11.7

VHLP

4-11-

RR1A

2.2°32 dB63 dB36.8

dBi

37.3

dBi

37.7

dBi

7.125 –

8.5

VHLP

4-7W-

RC1A

Return

LossVSWR

Beamwidth,

VerticalXPD

Front-to-

Back Ratio

Gain,

Low

Band

Gain,

Mid

Band

Gain,

Top

Band

Frequency

Band (GHz)Type

31



17.7 dB1.3

0.8°74 dB45.9

dBi

46.2

dBi

46.5

dBi

14.25 –

15.35

VHLP

6-15-

RR1A

0.9°72 dB44.8

dBi

45.2

dBi

45.5

dBi

12.7 –

13.25

VHLP

6-13-

RR1A

1.1°

30 dB

70 dB43.3

dBi

43.8

dBi

44.4

dBi

10.7 –

11.7

VHLP

6-11-

RR1A

1.5°32 dB67 dB40.1

dBi

40.8

dBi

41.1

dBi

7.125 –

8.5

VHLP

6-7W-

RC1A

Return

LossVSWR

Beamwidth,

VerticalXPD

Front-to-

Back Ratio

Gain,

Low

Band

Gain,

Mid

Band

Gain,

Top

Band

Frequency

Band (GHz)Type



17.7 dB1.3

0.5°79 dB48.9

dBi

49.4

dBi

49.9

dBi

21.2 –

23.6

VHLP

6-23-

RR1A

0.7°

30 dB

76 dB47.0

dBi

47.8

dBi

48.4

dBi

17.7 –

19.7

VHLP

6-18-

RR1A

Return

LossVSWR

Beamwidth,

VerticalXPD

Front-to-

Back Ratio

Gain,

Low

Band

Gain,

Mid

Band

Gain,

Top

Band

Frequency

Band (GHz)Type

32


Equipment Characteristics

� PDH/SDH integrated microwave transmission system.

� The modulation mode and link capacity are set by software.

� Microwave link supports the SNCP.

� Built-in ADM provides flexible service add/drop function.

� Providing the clock tracing, XPIC, MW N+1, REG and RMSP

functions.

� Synchronous data interface and Orderwire spanning (for Ver. C

SCC)

� Supporting removable FLASH card.

� Supporting AM and Hybrid Microwave


Equipment Characteristics (Cont.)

� AM Function Based on the Hybrid Microwave

256QAM

128QAM

64QAM

16QAM

QPSK

256QAM

Channel

Capability

E1 Services

Ethernet

Services

33


Questions

� What are the components of OptiX RTN 600? What are the

functions of them? What about the connection relation among the

components?

� What are the characteristics of OptiX RTN 600 digital microwave

equipment?


Contents

1. Equipment System



34


Service and Equipment Protection

� The service protection and equipment protection schemes

provided by the OptiX RTN 600 are as follows:

� 1+1 hot standby (HSB)

� Microwave 1+1 space diversity (SD)

� Microwave 1+1 frequency diversity (FD)

� Reverse Switch

� Sub-network connection protection (SNCP)

� Cross-connect and clock unit (PXC) active/standby protection


1+1 Space Diversity (1+1 SD)

H

35


1+1 Frequency Diversity (1+1 FD)

f1f1

f3f3


Space Frequency Diversity (1+1

FD+SD)

H

f1f1

f3f3

36


Summary

Cross-connect unit

It causes the service interruption.

� 0ne antenna.

� No paired slots limitation.

� Two ODUs with same frequency band.

� One ODU is mute.

1+1 HSB

IF unitThe services are not interrupted.

� Two antennas.

� Paired slot limited.



1+1 SD

IF unitThe services are not interrupted.

� One/two antennas.


� Two ODUs with different frequency bands.

� Two ODUs both work.

1+1 FD

Switching

Point

Service

Interruption characters

Protection

Scheme


Contents

1. Equipment System



37


Microwave Station Type

� Classified by Station Type

� Terminal station: one microwave direction with service add and drop.

� Relay station: two microwave direction without service add and drop.

� Pivotal station: two or above two microwave directions with service

add and drop.

� Classified by Frequency in Communication

� High station: transmit frequency is higher than the receive frequency.

� Low station: transmit frequency is lower than the receive frequency.


Microwave Station Type (cont.)

Terminal station

Terminal

stationPivotal

station

Relay

stationRelay

station

Terminal

station

f 1

High

station

Low

station

f 1’

f 1

High

station

f 1 < f 1’

f 1’

38


Microwave Station Type (cont.)

� Typical configuration of the OptiX RTN 600 as the Terminal

Station

� Typical configuration of the OptiX RTN 600 as the Relay Station

slot20 PXC slot3

PXC slot1

slot4

SCC slot2

IF1A slot7

IF1A slot5

slot8

slot6

SLE slot3

PXC slot1

IF1A slot4

SCC slot2

SLE slot3

PXC slot1

IF1A slot4

SCC slot2

Cable

SL1 slot3

PXC slot1

IF1A slot4

SCC slot2

slot20 PXC slot3

PXC slot1

PH1 slot4

SCC slot2

IF1A slot7

IF1A slot5

slot8

slot6


Microwave Network Topology

� The following figures show the basic topologies of the microwave

network.

Ring

networkRing

network

Chain

networkChain

network

Star

networkStar

network

Tree

networkTree

network

39


Applications of OptiX RTN 600 (cont.)

� Applications in the Backhaul Network of the Mobile Base Station

Terminal station in the mobile backhaul network

Mobile backhaul chain network

Mobile backhaul tree network

Passive relay



� Microwave Access Network

VIP client

Service center

Business

center

Other

client

40



� Complementary Network to the SDH Ring Network

Radio link

Radio link Radio link



� Ring Network Purely Formed by Microwave Equipment

User network

User network

User network

User network

User network

User network

Passive

relay

Transmission network

41


Summary

In this course, we mainly introduced:

� OptiX RTN 600 equipment structure and feature, functions and

application for every units.

� OptiX RTN 600 protection modes and difference among them.

� Application of OptiX RTN 600 in all kinds of the networks.

Thank youwww.huawei.com

42

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OptiX RTN 600

Series Installation


Objectives


� Describe the relation among the different parts of OpitX RTN

600

� Illustrate the installation procedures and steps of antenna,

ODU/hybrid coupler and IDU

� Implement the out door and indoor components installation of

OptiX RTN 600

� Describe the installation criterions for each part of OptiX RTN

600

43


Contents

1. OptiX RTN 600 Series Hardware Structure

2. Installation Preparation

3. Antenna Installation

4. ODU/Hybrid Coupler and Related Cable Installation

5. IDU and Related Cable Installation


System Hardware Structure

Hybrid Coupler

IF Cable

IDU

ODUAntenna

44


Antennas


ODU and Hybrid Coupler

Grounding

double-screw bolt

RSSI test

interfaceIF interface

Antenna

port

Waveguide-to-coaxial

converter

45


IDU

IDU 610

IDU 620

IDU 605 1A

IDU 605 1B

IDU 605 2B

IF interface


Contents






46


Preparation (Cont.)

� Tools

Sharp-nose pliers, electrical knifeBench

Cross tip screwdriver, flat-tip screwdriver, adjustable wrench

(10', 12', 17', 19', 24', one for each), socket wrench

Fixing

100-m hoisting rope, 100-m stretching rope, pulleyHoisting

Multi-meter, GPS, north-stabilized indicatorInstruments

ESD gloves, wire punch tool, telescope, socket-head wrenchSpecial tools

Brush, tweezers, paper knife, hand bellows, electric iron, tin

wire, crowbar

Auxiliary

Percussion drill, accessory drill bits, vacuum cleanerDrilling

50-m tape, 5-m measuring tape, 400-mm level meter, markerMeasuringCommon

tools

Description Category


Preparation (Cont.)

� Tools

47


Preparation (Cont.)

� Checking Installation Conditions

� Installation Conditions of the IDU

� Installation Conditions of the Antenna/ODU/Hybrid coupler

� Lightning-Proof and Grounding System

� Power System


Contents






48


Before Hoisting the Antenna

� Check the height and the position of

the antenna, it should comply with

the design document

� Determine the azimuth of the

antenna by compass, GPS or

telescope

� Verify the type and polarization of

the antenna

� Adjust the polarization type of the

antenna if necessary


Before Hoisting the Antenna (Cont.)

� Install the anti-fall bracket

49


Installing the Antenna

� Spread anti-seize grease on the

bolts and remove the hoisting

rings

side strut


Antenna Installation Criteria

Fixation and side strut and well.2

Antenna identifier is clear.3

Installation height and position and polarization are

right.

1

50


Contents







Contents


4.1 One ODU for one Antenna

4.2 Two ODUs for one Antenna

4.3 ODU related cable installation

4.4 ODU Parts Installation Criteria

51


One ODU for Single-Polarized Antenna

� There are two types of installation, direct or separate mounting.


Direct Mount Installation

� For ODU direct mount on the antenna

52


Separate Mount Installation

� Components for ODU mount on the antenna by

waveguide or coaxial cable


Separate Mount by Waveguide (Cont.)

� Install the ODU onto the ODU adapter.

� The ODU adapter provides the same feed boom port as the

antenna.

� Installing the ODU onto the ODU adapter is similar to

installing the ODU onto the antenna.

53


Separate Mount by Coaxial Cable

� Install the ODU onto the pole, and install the Waveguide-to-

coaxial converter onto antenna feeder boom,


Two ODUs for Dual-Polarized Antenna

� Install two ODUs onto dual-polarized antenna.

54


Contents








� Install the hybrid coupler

� Use four latches and four bolts to mount it on the antenna.

� Before mounting, check the polarization of the hybrid

coupler, if not the same as the polarization on antenna,

adjusting it.

55


Direct Mount Installation (Cont.)

� Install the hybrid coupler

lubricant

anti-seize grease



� Install the ODU on the hybrid coupler

lubricant

56


Separate Mount by Coaxial Cable

� Install the two ODUs on a Pole, and install the coaxial

interface coupler onto the antenna, then connect ODUs

to coupler by coaxial cables.


Contents






57


ODU Grounding Cable Installation

� One end of the protection grounding cable of the ODU is

connected to the grounding stud of the ODU, and the

other end is connected to a grounding point.


Lightning Arrestor Installation

� The end of the lightning arrestor identified as "Protector"

is connected to the IF port on the ODU, and the other

end identified as "Surge" is connected to the IF cable.

or

matching type-N

adapter

58


IF Cable Installation

� Make the N type connector on the IF cable

1 2 3

4 5 6


IF Cable Installation (Cont.)

� Hoist the IF cable with the end which connecting to ODU,

connect the IF cable to ODU’s IF cable port or lighting

arrester tightly. Make good waterproof curve.

59



� Grounding the IF cable

� Determine the grounding point depending on the IF cable

length and ODU installation mode.



� Grounding the IF cable (cont.)

� The IF cable is grounded using cable grounding clips.

60



� Waterproof of the outdoor connectors


Contents






61


ODU Parts Installation Criteria

The IF connector of ODU

should be waterproofed and

face downward.

2

The ODU grounding cable

should be shortest length as

possible and attached to the

tower body by the cable clips.

3

The latches of the ODU and

hybrid coupler should tightly

engage on the antenna. The

screws should be fastened

tight.

1


ODU Parts Installation Criteria (Cont.)

Leave enough slack when connecting cables to the ODU6

All of outdoor connector should be waterproofed.5

the IF cable should be grounded to a minimum of three

points.

4

62


ODU Parts Installation Criteria (Cont.)

The IF cable route and position for the cabling should be

designed beforehand and arranged neatly. IF cable turns

should be smooth, and the bending radius should be larger

than 30 cm.

8

Leave enough slack when connecting cables7


Contents






63


Installing the IDU in a Cabinet

� Mounting ears19 inch


Installing the IDU in a Cabinet

(Cont.)� Install the captive nut, grounding cable and IDU.

64


Installing the IDU on the Wall

� The mounting ears are the same as used to install in

the cabinet.


Installing the Cables

� Install the power cable, IF jumper cable.

65


Installing the Cables (Cont.)

� Install the XPIC cable, service cable.

Ethernet cable

Coaxial cable

Optical

fiber


Installing the Cables (Cont.)

� Install the E1 cable.

66


Summary

� OptiX RTN 600 hardware installation

� Antenna installation

� ODU and related cables installation

� IDU and related cables installation


67

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OptiX RTN 600

Networking and

Protection


Objectives


� List the common network types of OptiX RTN 600

� Describe the network application of the OptiX RTN 600

� List the network and equipment protection schemes supported

by the OptiX RTN 600.

� Describe the configuration requirements of all types of

protection mode in OptiX RTN 600

68


Contents

1. Network Application and Networking Modes of the

OptiX RTN 600

2. Service Protection and Equipment Protection Schemes of

the OptiX RTN 600


Network Location

Optical

Core Transport NetworkAggregationAccess

Node B

BTSNode B+BTS

BTS

69


Microwave Network Topology

� The following figures show the basic topologies of the microwave

network.

Ring

networkRing

network

Chain

networkChain

network

Star

networkStar

network

Tree

networkTree

network


Microwave Station Type

� Classified by Station Type

� Terminal station: one microwave direction with service add and drop.

� Relay station: two microwave direction without service add and drop.

� Pivotal station: two or above two microwave directions with service

add and drop.

� Classified by Frequency in Communication

� High station or Primary station: transmit frequency is higher than the

receive frequency.

� Low station or Non-primary station: transmit frequency is lower than

the receive frequency.

70


Microwave Station Type (Cont.)

� Typical configuration of the OptiX RTN 600 as the Terminal Station

SL1 slot3

PXC slot1

IF1A slot4

SCC slot2 slot20 PXC slot3

PXC slot1

PH1 slot4

SCC slot2

IF1A slot7

IF1A slot5

slot8

slot6

IDU 610IDU 620



� The Terminal Stations are used in:

IDU 605/610

IDU 605/610Radio Transmission

NetworkIDU 620

IDU 605/610/620

IDU 620

IDU 605/610/620

IDU 605/610

71



� Typical configuration of the OptiX RTN 600 as the Relay Station

slot20 PXC slot3

PXC slot1

slot4

SCC slot2

IF1A slot7

IF1A slot5

slot8

slot6

SLE slot3

PXC slot1

IF1A slot4

SCC slot2

SLE slot3

PXC slot1

IF1A slot4

SCC slot2

Cable



� Typical configuration of the OptiX RTN 600 as the pivotal Station

slot

20 PXC slot3

PXC slot1

PH1 slot4

SCC slot2

IF1A slot7

IF1A slot5

slot8

SD1 slot6

slot

20 PXC slot3

PXC slot1

PH1 slot4

SCC slot2

IF1A slot7

IF1A slot5

IF1A slot8

IF1A slot6

72



� The pivotal Stations are used in:

Ring


Applications of OptiX RTN 600

� Applications in the Backhaul Network of the Mobile Base Station

� Terminal station in the mobile backhaul network

� Mobile backhaul chain network

� Mobile backhaul tree network

� Applications in the Access Network and Private Network

� Microwave access network

� Complementary network to the SDH ring network

� Ring network formed by microwave equipment and SDH equipment

� Ring network purely formed by microwave equipment

73



(Cont.)� Applications in the Backhaul Network of the Mobile Base Station

Terminal station in the mobile backhaul network

Mobile backhaul chain network

Mobile backhaul tree network

Passive relay



(Cont.)� Microwave Access Network

VIP client

Service center

Business

center

Other

client

74



(Cont.)� Complementary Network to the SDH Ring Network

Radio link

Radio link Radio link



(Cont.)� Ring Network Formed by Microwave Equipment and SDH

Equipment

User network

User network

User network

User network

User network

User network

User network

Transmission network

75


Questions

� How many microwave station types can be configured on the

OptiX RTN 600? What are them?

� Does an OptiX RTN 600: IDU 610 can be set as relay station?

Why?

� List out four applications of the OptiX RTN 600 in the transmission

network.


Contents

1. Network Application and Networking Modes of the OptiX

RTN 600

2. Service Protection and Equipment Protection Schemes

of the OptiX RTN 600

76


Service and Equipment Protection

� The service protection and equipment protection schemes

provided by the OptiX RTN 600 are as follows:

� 1+1 hot standby (HSB)

� Microwave 1+1 space diversity (SD)

� Microwave 1+1 frequency diversity (FD)

� Microwave N+1 protection

� Reverse Switch

� Sub-network connection protection (SNCP)

� LMSP and RMSP

� Cross-connect and clock unit (PXC) active/standby protection


1+1 Hot Standby Backup

(1+1HSB)

Cross-connection

board Service

board

Active

IF BoardActive

ODU

Hybrid couplerAntenna

Standby

IF Board

Standby

ODUmut

e

mute

77


1+1 Hot Standby Backup (Cont.)

IDU 620 HSB Typical Configuration IDU 605 2B HSB Typical Configuration


Description of 1+1 HSB

� Switch point

� Cross-connection board.

� Switch condition

� Automatic: IF board hardware fault, ODU hardware fault, microwave

frame loss, etc.

� Manual: locking, forced, manual, and clearing

� Characteristics

� The active/standby unit has no restrictions on the paired slots.

� The switch actions are implemented by the software and hardware.

� The service will be interrupted in the case of switch.

78


Description of Hitless Switch (HSM)

� Switch point

� IF board.


� Automatic: microwave frame loss, microwave signal loss, microwave

bit error , etc.

� Manual switch: Force switch, clear.

� Characteristics

� The Active /standby IF board must be in paired slots.

� Switch is implemented by hardware.

� Service has no interruption during switch.


Reverse Switch

� Scenario

� System fails to detect the hardware faults in transmitting direction


� Remote site detected the failure and trigger the HSB or SD switch in

local site by RDI.

� Characteristics

� It is only configured in the case of HSB or SD.

� Through the service detection, all the hardware faults in the

transmitting direction can be protected.

79


SummaryProtection

Schemecharacters

Service

Interruption

Switching

Point

1+1 HSB � 0ne antenna.

� No paired slots limitation.



It causes the service interruption.

Cross-connect unit

1+1 SD � Two antennas.




The services are not interrupted.

IF unit

1+1 FD � One/two antennas.


� Two ODUs with different frequency bands.

� Two ODUs both work.

The services are not interrupted.

IF unit


Microwave N+1 Protection

� In microwave N+1 protection (N<=3), there is one protection channel and N

working channels, the working service are in the corresponding working

channels and protection channel may used for extra service.

� The working service in some certain channel can be switched to the

protection channel when the failure happened in the corresponding working

channel.

Controller controller

RFSOH

PP

MM11

MM22

MM33

PP

MM11

MM22

MM33

chch11

chch22

chchPP

chch33

chch11

chch22

chchPP

chch33

80


Microwave N+1 Protection (Cont.)

� 2+1 typical configuration


Microwave N+1 Protection (Cont.)

� The switching point is on PXC board, switching procedure is

controlled by SCC.

� Switching criteria (from high to low priority):

� Lockout protection channel

� Force switching

� Signal Failure: MW_LOF、R_LOC、R_LOF、R_LOS、MS_AIS、

B2_EXC, hardware failure on ODU or IF boards

� Signal Degrade (optional): B2_SD

� Manual switching, restoration, exercise switching

81


Adaptive Modulation

� AM Function Based on the Hybrid Microwave

256QAM

128QAM

64QAM

16QAM

QPSK

256QAM

Channel

Capability

E1 Services

Ethernet

Services


Automatic Modulation (Cont.)

� AM board connection for 1+1 IF protection

82


SNCP

� Services are concurrently sent at NE A. The path that through NE

B is the active path. The path that through NE D is the standby path.

� In the normal state, NE C selects the services from the active path.

� In switching state, NE C switch to select the services from the standby

path.


Linear Multiplex Section Protection

� The Linear Multiplex Section Protection (LMSP) is used for

point to point topology to provide the protection between two

nodes.

� IDU 610 supports up to 2 groups of STM-1 optical/electrical

LMSP, and IDU 620 supports up to 5 groups of STM-1

optical/ electrical LMSP or 3 groups of STM-1

optical/electrical LMSP plus 1 group of STM-4 LMSP.

83


Ring Multiplex Section Protection

� Two fiber Multiplex Section Shared Protection Ring:


PXC Active/Standby Protection

Cross-

connect

and clock

unit

1

Service

unit

3

Service signal

Service signal and

clock signal

Service signal

Clock

signal

• In the normal state

1

3

• In the switching state

Service

unit

Cross-

connect

and clock

unit

Cross-

connect

and clock

unit

Clock

signal

Service signal

Service signal Cross-

connect

and clock

unit

Service signal and

clock signal

84


Relation Between IDU and Protection

IDU 605 IDU 620 IDU 610

SNCP Not supporting supporting supporting

1＋1 FD Supporting (2B module) supporting Not supporting

1＋1 SD Supporting (2B module) supporting Not supporting

1+1 HSB Supporting (2B module) supporting Not supporting

N+1 Not supporting supporting Not supporting

PXC 1+1 Not supporting supporting Not supporting

Pow. 1+1 supporting supporting Not supporting

RMSP Not supporting supporting Not supporting

LMSP Not supporting supporting supporting


85

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OptiX RTN 600 Equipment Commissioning

Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page 1

Objectives


� Finish proper preparations before the commissioning

� Performing NE commissioning of the OptiX RTN 600

� Performing hop commissioning of the OptiX RTN 600

86


Contents

1. Preparations for the OptiX RTN 600 Commissioning

� 1.1 Determining Commissioning Items

� 1.2 Preparing Related Documents

� 1.3 Preparing Related Tools

� 1.4 Checking Commissioning Conditions


Determining Commissioning Items

1. NE Commissioning Items

-RequiredConfiguring the data

Check whether all indicators work

normally or not. RequiredTesting indicators

Recommend to test if instrument

available on site. Optional

Performing the service

loopback test

-RequiredAccessing the Web LCT

Check fan status after power on if fan is

available. Required

Powering on the

equipment

RemarksOptional/Require

d

Commissioning Item

87


Determining Commissioning Items (cont.)

1. NE Commissioning Items (cont.)

RemarksOptional/Require

d

Commissioning Item

It applies to the station where the E1

service is accessed.Optional

Testing E1 cables

connections

It applies to the station where the SDH

optical interface service is accessed. Optional

Checking the receive

and transmit power of

the optical interface

Use the Web LCT to query the RF

transmit power. Required

Testing the RF transmit

power

It only applies to the equipment

configured with the active and standby

cross-connect boards.

Required

Testing the

active/standby cross-

connect board switching


2. Hop Commissioning Items

Test all service types turned up at the

station like the E1, STM-1, and WS. Required Testing all services

It is applicable when there is the order

wire phone available between stations. Optional

Testing the orderwire

phone

-Required Testing the ECC

-RequiredAligning the antenna

RemarksOptional/ Required Commissioning Item


88


Check and ensure that the clock source

can be traced normally. Required

Testing the clock

tracing

It is applicable when the 1+1

HSB/FD/SD protection is configured. Required

Testing the IF

switching modes

It is applicable when the SNCP is

configured. Required

Testing the SNCP

switching

Generally perform the test for 24 hours

according to the actual conditionsRequired

Testing the long-

term BER

RemarksOptional/RequiredCommissioning Item

2. Hop Commissioning Items (cont.)



Preparing Related Documents

� Engineering design documents like：

� OptiX RTN 600 Radio Transmission System Network Planning

Document

� OptiX RTN 600 Radio Transmission System Engineering

Design Document

� Commissioning guide documents like:

� OptiX RTN 600 Radio Transmission System Commissioning

Guide

� OptiX RTN 600 Radio Transmission System Quick Installation

and Commissioning Guide

89


Preparing Tools

� The tools that are required include the common tools, special tools

and instruments. The recommended list is as follows:

Multi-meter, BER tester, and laptop computer (installed

with the Web LCT)Instrument

Anti-static glove, ESD-preventive wrist strap, telescope,

and intercom

Special

tool

Adjustable wrench, percussion drill, sharp-nose pliers, and

electric knife

Common

tool

DescriptionType


Checking NE Commissioning Conditions

� The hardware installation complete.

� The power supply is normal.

� The cable / fiber installation.

� Web LCT is available.

90


Checking Hop Commissioning Conditions

� The NE commissioning is complete.

� The weather condition.

� Safety of the operation at a high altitude.


Contents


2. NE Commissioning of the OptiX RTN 600

3. Hop Commissioning of the OptiX RTN 600

91


Contents


� 2.1 Powering On the Equipment

� 2.2 Testing Indicators

� 2.3 Accessing the Web LCT

� 2.4 Configuring the Data

� 2.5 Performing the Service Loopback test

� 2.6 Testing the Connections of the E1 Cables

� 2.7 Testing the Transmit and Receive Optical Power

� 2.8 Testing the RF Transmit Power

� 2.9 Testing the Active/Standby Cross-Connect Board Switching


Powering On the Equipment

� Prerequisites

� Hardware installation complete and power is available.

� The power supply must be available, and the fuse capacity of

the power supply must meet the requirements.

� Tools and Instruments

� Multi-meter

� Procedure

� Turn off all power switches on equipment.

� Turn on the input power switch of the cabinet.

92


Powering On the Equipment (cont.)

� Test power volt and polarity.

� Turn on the switch on PXC board.

� Monitor fan and indicators.

� Turn on the power of ODU.


Testing Indicators

� Prerequisites

� After 5 minutes power on


� None.

� Procedure

� Press or release the button on SCC.

LAMP

TEST

button

93


Accessing the Web LCT

� Prerequisites

� After power on.


� Laptop computer installed with Web LCT

� Cross cable

� Procedure

� Connect cable.

� Start Web LCT on laptop computer.

� Set IP of computer.

� Set the options of the Internet Explorer (IE).

NM interface


Configuring the Data

� Prerequisites

� After Web LCT access.


� Web LCT

� Procedure

� Set the new ID and IP as the planning document request.

� Configure all the existing boards in equipment.

� Monitor board indicators again.

94


Checking alarm

� Prerequisites

� The equipment must be connected to the Web LCT.

� Data configuration must be complete.

� Tools, Instruments, and Materials

� Web LCT

� Procedure

� Select an NE from the Object Tree in the NE Explorer, and then click in the

toolbar.

� Select Auto Refresh.

� Check the displayed alarm information.


Testing Transmit and Receive Optical Power

� Prerequisites

� Fiber connection is available.

� Boards are configured


� Web LCT or optical power meter

� Procedure

� Disable automatic laser shutdown (ALS) function.

� Check the transmit and receive optical power by Web LCT or optical

power meter.

� Judge the power value is normal or not.

95


Performing the Service Loopback Test

� Prerequisites

� NE is configured and running normally.


� Web LCT, BER tester or SDH analyzer

� Procedure

� Configure the service to the boards and connect instrument well.

� Set hardware or software loopback and monitor service at least 5

minutes.


Testing E1 Cable Connections

� Prerequisites

� Service and cable connection available.


� Web LCT and BER tester

� Procedure

� Connect tester and set the outloop.

� Release outloop, AIS alarm should occur.

� All the ports can be test together.

96


Testing the RF Transmit Power

� Prerequisites

� NE configuration is complete.

� The ATPC function must be disabled.


� Web LCT

� Procedure

� Set the transmitting power value for ODU.

� Query the actual output power value of ODU.

� Compare the difference of the above power values.


Testing Active/Standby Cross-

connect Switching

� Prerequisites

� Service be configured.

� The active and standby cross-connect boards be configured.


� Web LCT and BER tester

� Procedure

� Current status of two PXC should be normal.

� Switch PXC board by Web LCT and monitor their status and alarms.

� Restore back PXC board.

97


Questions

� What is the procedure to access Web LCT?

� How should the E1 port be set and connected for testing the connections

of E1 cables? How to adopt the testing it quickly?

� Why shall we disable the ATPC function when test RF transmit power?


Contents




98


Contents


� 3.1 Aligning the Single-Polarized Antenna

� 3.2 Aligning the Dual-Polarized Antennas

� 3.3 Testing the ECC

� 3.3 Testing the E1 Service

� 3.3 Testing the Ethernet Service

� 3.4 Testing the WS Service

� 3.5 Testing the order wire

� 3.6 Testing the Clock Tracing

� 3.7 Testing the IF 1+1 Switching

� 3.8 Testing the SNCP Switching

� 3.9 Testing the 24-Hour BER


Aligning the Single-Polarized Antenna

� Prerequisites

� The NE commissioning is complete.

� Weather is suitable for commissioning.

� The on-site conditions and personnel fit for high altitude operation.

� ATPC disabled.


� Wrench, multi-meter and intercom.

� Procedure

� 1. Rotate antenna approximately.

99


RSSI

Aligning the Single-Polarized Antenna (cont.)� Procedure (cont.)

� 2. Test VBNC value:

VBNC

RSL



(cont.)

� Procedure (cont.)

� 3. Rotate antenna in horizontal manner widely to search the

highest VBNC.

� 4. Adjust the elevation angle to search the highest VBNC.

� 5. Aligning the remote antenna.

� 6. Repeat step 2 to step 5 for 2 to 4 times until get the highest

VBNC at both sides.

� 7. Tighten all the screws to fix antenna and make a mark.

� 8. Read the current RSL for both sides.

100



(cont.)

� Precautions

� Align the antennas respectively in case of two antennas

configured at both sides.

� 1+1 SD.

� 1+1 FD + SD.

� The antenna adjustment device is screw bolt.

� Make the test line with BNC interface for multimeter in advance.


Aligning the Dual-Polarized Antenna

� Prerequisites

� The NE commissioning of the radio equipment at both ends of the

radio link must be complete.

� The weather must be suitable for outdoor work. There should be

no rain, snow or fog between stations.

� The on-site conditions must meet the requirement for performing

operations at high altitudes and the personnel in charge of

commissioning the antenna must be trained to work at high

altitudes.

� The ATPC function must be disabled.

101



(cont.)


� Ejector lever

� Multi-meter

� Procedure

� 1.Power off the vertically polarized ODUs at both ends of the

radio link, power on the horizontally polarized ODUs at both ends

of the radio link, and thus ensure that the antennas transmit

horizontally polarized signals.

� 2.Adjust the azimuth angle and elevation angle of the antennas at

both ends and ensure that the main lobe of the horizontally

polarized signals is aligned with the antenna.



(cont.)

� 3.Measure the RSL (P1) of the horizontally polarized signals at

the local end.

� 4.Adjust the feed boom at the local end, and ensure that the RSL

of the vertically polarized signals reaches the lower threshold (P2).

� 5.Record the angle (D1) of the current feed boom.

� 6.Power off the horizontally polarized ODUs at both ends of

the radio link, power on the vertically polarized ODUs at

both ends of the radio link, and thus ensure that the

antennas transmit vertically polarized signals.

102



(cont.)

� 7.Measure the RSL (P3) of the vertically polarized signals

at the local end by referring to 3.

� 8.Power on the horizontally polarized ODU at the local end,

and calculate the level (P4) of the horizontally polarized

signals received at the local end by referring to 4. The

calculated XPD2 (XPD2 = P3 – P4) should not be less than

30 dB.

� 9.Record the angle (D2) of the current feed boom.



(cont.)

� 10.Repeat 3 to 9 to adjust the feed boom slightly (ranging

from D1 to D2), and ensure that XPD1 and XPD2 are not

less than 30 dB.

� 11.Tighten all the screws of the antennas.

103


Testing the ECC

� Prerequisites

� Antenna alignment must be complete.

� The NE must have access to the Web LCT.


� Web LCT

� Precautions

� Test the ECC at one end of the radio link.

� Procedure

� Add and set the attributes of the remote NE in Web LCT

� Observe Login Status of the newly added remote NE.


Testing the E1 Service

� Prerequisites

� The E1 service must be available.



� BER tester and Web LCT

� Procedure

� BER tester connected to local site.

� Remote site set the loopback.

� No errors in 5 or 10 minutes.

� Release all loopbacks.

104


Testing the E1 Service (con.)

� When there isn’t BER tester, the PRBS function of

PDH board can test the E1 service instead of BER

tester.

� Setting the loop-back of an E1 interface at remote site.

� Configuring PRBS function at local site.

� Observing the testing result.

� Releasing loop-back


Testing the Ethernet Service

� Prerequisite

� The Ethernet service must be configured between stations.


� Web LCT

� One laptop

� Connection diagram for testing the Ethernet service

� Configuration for testing the Ethernet service

105


Testing the Ethernet Service(cont.)

� Cable connection for the IDU (NE 1)


Testing the Ethernet Service(cont.)

� Cable connection for the IDU (NE 2)

106


Testing the Ethernet Service (cont.)

� Procedure

� 1.On the IDU side of NE 1, use an Ethernet cable to connect the

Ethernet port of the laptop to the Ethernet service port of the Ethernet

board, as shown in The Ethernet service port enables service

transmission between NEs.

� 2.On the IDU side of NE 2, use an Ethernet cable to connect the

Ethernet port of the SCC to the Ethernet service port of the Ethernet

board, The Ethernet service port enables service transmission

between NEs.

� 3.Set the IP address of the laptop, and ensure that the IP

address and the IP address of NE 2 belong to the same

network segment.


Testing the Ethernet Service (cont.)

� Display the Command Prompt window of laptop A, and run the ping

129.9.0.2 -n 200 -l 2000 command.

� After you run the command, check the result. There should not

be lost packets, that is, the output display should contain the

following information: Lost = 0 (0% loss)

107


Testing the WS Service

� Prerequisites

� The WS service must be configured.



� BER tester

� Procedure

� At local site, connect the BER tester to the WS port.

� At remote site, perform the hardware inloop for the WS port.

� Test the BER for 5 to 10 minutes by BER tester. No bit errors should

occur.

� Release the loopback.


Testing the order wire

� Prerequisites

� The order wire phone must be correctly installed at the station.

� The data of the order wire must be configured.



� None.

� Procedure

� Dial the number of remote site.

� Check the voice is clear or not.

108


Testing the Clock Tracing

� Prerequisites

� The clock tracing priority list must be configured.


� Web LCT

� Procedure

� Query the current clock priority table by using the Web LCT.

� Query the current .

� Manual switch the PXC board.


Testing the IF 1+1 Switching

� Prerequisites

� The equipment must be configured with the IF 1+1 protection.




� Procedure

� Connect E1 tester in local E1 port and set loopback in remote site.

� Query the working status of IF board.

� Mute the active ODU to start the IF switch.

� Check status and alarms.

109


Testing the IF 1+1 Switching (cont.)

� Procedure (cont.)

� Check the bit errors generate in switching.

� Test the restoration of IF 1+1 switching.

� Power on the main ODU.


Testing the SNCP Switching

� Prerequisites

� The equipment must be configured with the SNCP protection.




� Procedure

� Connect tester for E1 ports and perform the bit error testing.

� Power of the ODU to trigger the SNCP switch.

� Check the service status, alarms and bit errors.

� Test the restoration of SNCP.

110


Testing the 24-Hour BER

� Prerequisites




� Procedure

� Cascade the E1 ports with the BER

tester at one site.

� Perform the loopback at the other

sites.

� Test bit error for 24 hours.


Questions

� What is the procedure to aligning antennas?

� How long should it take to test the E1 service and WS service

respectively by using the BER tester?

� What alarms occur after the IF 1+1 switching is complete?

� How can we ensure that SNCP switching is successful?

� How should we handle bit errors occurring in the 24-hour BER test?

111


Summary

� The commissioning items in hop commissioning:

� 3.1 Aligning the Single-Polarized Antenna

� 3.2 Aligning the Dual-Polarized Antennas

� 3.3 Testing the ECC

� 3.3 Testing the E1 Service

� 3.3 Testing the Ethernet Service

� 3.4 Testing the WS Service

� 3.5 Testing the order wire

� 3.6 Testing the Clock Tracing

� 3.7 Testing the IF 1+1 Switching

� 3.8 Testing the SNCP Switching

� 3.9 Testing the 24-Hour BER


112

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OptiX RTN 600 Data

Configuration


Objectives


� Describe the functions of the T2000 and the T2000 Web LCT.

� Install the T2000 Web LCT.

� Configure services and protection by using the T2000 and the

T2000 Web LCT.

113


Contents

1. Introduction to Networks Management Systems

2. Introduction to T2000 Web LCT

3. Introduction to the T2000


Management System Solution

iManager T2000 iManager T2000

iManager T2100

OSS or integrated

NMS

MMLMML MML

NE management layer

Network

management layer

Service management layer

Qx Qx

NE layer

iManager T2100

iManager T2000

CORBA

iManager T2000

Integrated NMS & OSS

CORBA CORBA

LCT QxQx

114


Contents





Contents


� 2.1 Main Characteristics

� 2.2 Application Scenario

� 2.3 Installation Guide

� 2.4 Connecting to NEs

� 2.5 Configuration Operations

115


T2000 Web LCT Characteristics

� Access to a local NE through a LAN/RS 232

� Access to a remote NE through DCC

� Management of NEs of various types

� Concurrent login to a maximum of 32 NEs

� Integration with the T2000, T2100 or third-party

management system


Function of T2000 Web LCT

� Service configuration

� Protection configuration

� Setting and query of the RF and IF attributes

� Data services configuration

� Viewing of alarms and performance data

� Communication and security

116


Contents








Application Scenario

� Stand-alone

117


Application Scenario (cont.)

� Integrated

NE network

DCN

NMS

EMSEMS

NE network


Contents







118


Installation Requirement

� Configuration requirements

� The T2000 Web LCT runs on the Windows operating system.

� Hardware requirements

� CPU: Pentium III 700 MHz or higher

� RAM: 256 MB (recommended 512 MB or higher)

� Monitor: 1024 x 768 resolution

� Serial port: RS 232

� Ethernet port: 10M/100M


Installation Procedure

� Step 1 Uncompress the installation package or Insert the

installation CD-ROM, and run the setup.exe file. Click Next.

119


Installation Procedure (cont.)

� Step 3 Enter user name, company name, and serial number,Click

Next.



� Step 5 Click Install.

120



� Checking the Installation

� The T2000 Web LCT installation directory.

� By default is C:\Web_LCT.

� The installation directory of the jre software.

� By default is C:\Web_LCT\jre.

� The installation directory of the Tomcat software.

� By default is C:\Web_LCT\Tomcat .

� Check the shortcut icon on desktop.


Contents







121


Connecting to NE

� Connect to the NE directly through Ethernet interface.

� Connect to the NE through DCN.

� Connect to the NE through serial interface.


Contents







122


Login an NE


Login an NE (cont.)

123


Login an NE (cont.)


Login an NE (cont.)

124


Modifying the NE ID

In the NE list, delete the original NE. Create a new NE with the new ID.

After modifying the NE ID, you need to create and log in to the new NE. Only in this way can you recreate the communication

between the Web LCT and the NE.


Setting RF Attributes

125


Setting RF Attributes (cont.)


Configuring IF Protection

126


Configuring IF Protection (cont.)


Configuring IF Protection (cont.)

127


Setting IF Attributes


Setting IF Attributes (cont.)

128


Configuring a Service


Configuring a Service (cont.)

129


Configuring SNCP Service


Configuring SNCP Service (cont.)

130


Converting a Service


Converting a Service (cont.)

131


Browsing Alarm


Browsing Performance Events

132


Communications


Contents




133


Contents






Communications

T2000 serverT2000 clientT2000 client

134


Contents






T2000 Application Scenario

� Subnet management system (SNMS)

� Applicable to small and medium network management

� Provides power NE management functions

� Uniformly manage the RTN/SDH/ASON/MSTP/WDM

equipment

� Provides the standard northbound interfaces and

supports OSS integration

135


Contents






Creating a Microwave Link

136


Current Alarm Statistics


Customizing Alarm Attributes

137


Customizing Alarm Attributes

� Customization up to 16 performance thresholds.


History Performance Analysis

� Graphic history performance data analysis.

138


Summary

� Login the NE

� Modifying the NE ID

� Service Configuring

� Configuring IF Protection

� Setting IF Attributes

� Setting RF Attributes

� Browsing Alarm

� Performance

� Communications

� Creating a Microwave

Link

� Current Alarm Statistics

� Customizing Alarm

Attributes

� Alarm Correlation

Analysis and

Suppression

� History Performance

Analysis


139

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OptiX RTN 600 Alarm

and Performance

Event


Objectives


� Describe the main alarms and performances events in

OptiX RTN 600 system

� Analyze and process the common alarm and performance

events in the troubleshooting procedure

140


Contents

1. Description of the Common Alarm

2. Description of the Performance Event


Signal Flow in OptiX RTN 600

ODU

IF signal

IF Board

SD1 Baseband

signalBaseband

signal

SCC

PXC

IDU

PH1

EMS6Radio

Antenna

RF

signal

Digital IF

signal

Modemunit

IF

processunit

Combiner

interfaceunit

Baseband

digital signal

Analog IF

signal

141


Alarms in ODU

� CONFIG_NOSUPPORT

� Description: configured parameters do not match those of the

ODU.

� Reasons: the frequency, TR spacing, transmit power, ATPC

threshold, bandwidth or modulation mode are error.

� Impact on System: the ODU fails to work normally or trigged

1+1 HSB.

� Handling Procedure:

� Check the configuration of parameters of ODU by alarm

parameters.

� Modify the wrong settings.


Alarms in ODU (Cont.)

� IF_INPWR_ABN

� Description: power of ODU received IF signal is low or high.

� Reasons:

� There is an inloop operation on the IF port.

� The IF board is faulty.

� The IF cables are faulty.

� The ODU is faulty.

� Impact on System: the ODU service interrupted or trigged 1+1

HSB.

142


Alarms in ODU (Cont.)

� POWER_FAIL

� The active or standby power module of ODU is faulty.

� RADIO_MUTE

� The radio transmitter in ODU is muted, just receiving radio.

� RADIO_RSL_LOW/HIGH, RADIO_TSL_LOW/HIGH

� The radio receive/ transmit power is too low or too high


Alarms in IF Board

� MW_FECUNCOR ( IF1A and IF1B available )

� Description: the Reed Solomon (RS) encoding in the receiving

IF signal cannot be corrected.

� Impact on System: Bit errors occur to the services and might

cause the 1+1 HSB switch.

� MW_LIM

� Description: The mismatched microwave link identifier is

detected.

� Impact on System: service down or triggered the SNCP switch.

143


Alarms in IF Board (Cont.)

� MW_LOF

� Description: the receiving microwave frame is lost .

� Impact on System: Service down and any of the protection

might be triggered.

� MW_RDI

� Description: there are defects at the remote end of the

microwave link.

� Impact on System: not affect the local service, it will cause the

reverse switch in local.


Alarms in IF and SDH Board

� R_LOS

� Description: the SDH signal is lost at the receive side.

� Impact on System: service down and cause any of the switch.

� R_LOF

� Description: the SDH frame is lost at the receive side.


144


Alarms in IF and SDH Board (Cont.)

� MS_AIS

� Description: alarm indication at the receive side.


� MS_RDI

� Description: indicating the data reception fails at the remote

end of the multiplex section.

� Impact on System: not affect service in local.


Alarms in IF and SDH Board (Cont.)

� B1/B2/B3 EXC or B1/B2/B3 SD

� Description: B1/B2/B3 bit errors exceed the preset alarm

threshold (by default: 10-3 for EXC and 10-6 for SD).

� Impact on System: the EXC will cause service down and any of

the switch. The SD is optional to trigger the switch.

� Reasons:

� The line performance degrades.

� The transmit unit of the remote station is faulty.

� The receive unit of the local station is faulty.

145


Alarms in PDH Board

� T_ALOS

� Description: 2-Mbit/s analog signal is lost at the specific port.

� Impact on System: service down.

� TU_AIS (also reported by IF0A, IF0B in its PDH mode)

� Description: alarm indication at the receive side.

� Impact on System: service down and cause SNCP switch.


Alarms in PDH Board (Cont.)

� BIP EXC/SD (also reported by ETF4,EMS6 and IF0A, IF0B in its

PDH mode)

� Description: bit errors exceed the preset alarm threshold (by default:

10-3 for EXC and 10-6 for SD).

� Impact on System: the EXC will cause service down and any of the

switch. The SD is optional to trigger the switch.

� LP_RDI

� Description: the remote end fails to receive signals over the lower-

order path.

� Impact on System: not affect service in local.

146


Alarms in Ethernet Board

� ETH_LOS

� Description: the Ethernet port is disconnected.


� FCS_ERR

� Description: errors occur in the verification of the frame check sequence

(FCS)..

� Impact on System: service is interrupted or bit errors arise.

� LINK_ERR

� Description: the data link fails.


� TU_AIS_VC12/VC3

� Description: the VC12 or VC3 TU channel has alarms.

� Impact on System: Ethernet service down.


Alarms in PXC Board

� SYN_BAD

� Description: the synchronization source degrades.

� Impact on System: The NE clock is unlocked.

� POWER_ALM ( also reported in SCC and FAN board)

� Description: the power module is abnormal.

� Impact on System: If only one power module reports the

POWER_ALM alarm, the system is not affected.

147


Alarms in SCC Board� APS_INDI / FAIL

� Description: the MSP protection switching takes place or failed.

� Impact on System: Service restored or fail to restore.

� HSB_INDI / HSM_INDI

� Description: the microwave equipment 1+1 HSB or HSM is switched over.

� Impact on System: service will be interrupted during HSB switch.

� LTI

� Description: the synchronization source is lost.

� Impact on System: clock enters the free-run mode and loses synchronization

with other NE clocks.

� NESTATE_INSTALL

� Description: the NE is in the install state.

� Impact on System: IDU lost of configuration data and fail to work.


Alarms in SCC Board (Cont.)

� WRG_BD_TYPE

� Description: a board of the wrong type is detected.

� Impact on System: The board in the corresponding slot does

not work .

� XCP_INDI

� Description: the active and standby PXC boards are switched

over.

� Impact on System: service has interruption during the switch.

148


Contents

1. Description of the Common Alarm

2. Description of the Performance Event


Performance Events

Min. value of microwave receive powerRSL_MIN

Current value of microwave receive

signal level

RSL_CUR

Max. value of microwave receive powerRSL_MAX

Current value of microwave transmit

power

TSL_CUR

Min. value of microwave transmit powerTSL_MIN

ODUMax. value of microwave transmit powerTSL_MAX

Source Description Event Name

149


Performance Events (Cont.)

FEC corrected byte count FEC_COR_BYTE_C

NT

IF1A,

IF1B,

IF0A,

IF0B,

and IFX

Bit error rate before FEC

correction

FEC_BEF_COR_ER




Multiplex section errored second MSES

Multiplex section block of background

error

MSBBE

Multiplex section severely errored second MSSES

Regenerator section unavailable second RSUAS

Regenerator section severely errored

second

RSSES

Regenerator section errored second RSES

SL1,

SD1,

SLE,

SDE,

IF1A,

IF1B,IF

X and

SL4

Regenerator section block of background

error

RSBBE


150



PO1

PH1,PD1

and PL3 Count of new TU pointer justifications TUPJCNEW

Count of negative TU pointer justifications TUPJCLOW

Count of positive TU pointer justifications TUPJCHIGH

Count of new AU pointer justifications AUPJCNEW

Count of negative AU pointer justification AUPJCLOW

SL1, SD1,

SLE,

SDE,

IF1A,

IF1B,IFX

and SL4

Count of positive AU pointer justification AUPJCHIGH



Questions

� The IDU 620 configured with 1+1 HSB, and loaded E1

service, operator mute the active ODU. How do you check

whether the service is ok or not by query the alarms?

151


Summary

� Common alarms in ODU board

� Common alarms in IF board

� Common alarms in the SDH, PDH and Ethernet boards

� Common alarms in the SCC and PXC board

� Common performance events


152

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OptiX RTN 600

Routine Maintenance

Page1Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.

Objectives


� List the routine maintenance items of OptiX RTN 600

� Implement the maintenance operation of OptiX RTN 600

� Judge the common faulty in OptiX RTN 600

153


Contents

1. Routine Maintenance

2. Common Maintenance Operations


Contents


1.1 IDU maintenance items

1.2 Out door units maintenance items

1.3 Maintenance Items on NM system

154


Observing The Indicators� SRV indicator on all boards: indicates status of services

� Red color: critical or major alarm

� Yellow color: minor or remote alarm

� Green color: no alarm

� Off: no service configured or power off

� STAT indicator on all boards: indicates status of the boards

� Green color: board running normally

� Red color: board has hardware fault

� Off: board not running, not be created in NMS or power off

� BER indicator on IF board: indicates bit errors on microwave

� Yellow color: bit errors exceed the threshold

� Off: bit error is ok

� ODU indicator on IF board: indicates status of the ODU

� Green color: ODU running normally

� Red color: ODU has hardware fault

� Link indicator on IF board: indicates status of MW link

� Green color: MW link is normal

� Red color: MW link is abnormal


Testing The Orderwire Phone

� Making a call to other site.

� The dial tone should be clear after pick up the phone.

� The ringing tone should be clear after dial the number.

� If remote site answered the call, the voice should be

clear without noise.

155


Cleaning the Air Filter

� It is recommend to clean the

air filter once every two

months.

� Cleaning the air filter is

necessary only for the IDU

620 that is configured with

fans.


Cleaning the Equipment Room

� It is recommend to clean the equipment room once every

two months.

� 1. Temperature: –5℃ to 45℃.

� 2. Humidity: 5% to 95%.

� 3. Disaster protection.

� 4. Clean the equipment room.

156


Contents






ODU Maintenance Items

� It is recommend to perform the operations in every half year

or after a fresh gale.

� Checking the ODU

� Checking the hybrid coupler

� Checking the antenna

� Checking the IF cable

157


Checking the ODU

� Protection area of the

lightning arrester.

� Connections between ODU

to hybrid coupler and

antenna.

� Water-proof checking for the

interfaces.

� Status of protection

grounding cable.

� Surface of ODU.


Checking the Hybrid Coupler

� Protection area of the lightning arrester.

� Connections between hybrid coupler to ODU and antenna.

� Water-proof checking for the interfaces.

158


Checking the Antenna

� Protection area of the lightning

arrester.

� Connections between antenna to

pole.

� Antenna radome should be intact.

� Water accumulation in antenna.

� Position and direction of antenna.


Checking the IF Cable

� Appearance of the IF cable.

� Cable connectors.

� Cable grounding.

159


Contents






Maintenance Via LCT or NMS

� When the T2000 Web LCT is available on site or equipment

is managed by T2000:

� Querying alarms

� Querying performance

� Querying abnormal events

� Querying the receiving power of the ODU

� Testing protection functions once every half year

160


Contents


2. Common Maintenance Operations


Replacing an ODU

� ODU power off.

� Disconnect cable.

� Uninstall ODU.

� Install the new ODU.

� New ODU consistent with the previous one.

� Polarity.

� Connect back the cables.

� Carry out the waterproof measures for the IF interface of the ODU.

� Turn on the ODU-PWR switch on the panel of the IF board.

� Check status of new ODU by Web LCT.

161


Plugging Out a Board

Step 1:

Loosen the screws

on the front panel.

Step 2:

Unlock the ejector levers of the

board so that the board is

disconnected from the backplane.

Step 3:

Draw out the board

along the guiding rail.


Plugging In a Board

Step 1:

Slowly inserting the board

along the guiding rail.

Step 2:

Lock the ejector levers

of the board.

Step 3:

Fasten the screws

on the front panel.

162


Replacing an IF Board

� Active/standby board switch or SNCP switch.

� ODU power off and IF cable disconnect.

� Replace the new IF board and connect IF cable.

� Observe the indicators.

� Turn on ODU power.

� Restore active/standby board or SNCP service.

� Monitor status of the new IF board.


Replacing an SCC Board

� Remove the SCC board and

make sure the spare SCC

board is consistent with it.

� Replace the removable

memory card on spare SCC.

� Install the spare board.

� Monitor the indicators, and

check the status of the

running SCC board by Web

LCT.

163


Abbreviations and Acronyms

� IDU In Door Unit

� ODU Out Door Unit

� BER Bit Error Rate

� IF Intermediate Frequency

� NMS Network Management System

� SNCP Sub-Network Connection Protection

� LCT Local Craft Terminal

� SCC System Control and Communication Unit


164

OptiX RTN 600 Troubleshooting

HUAWEI TECHNOLOGIES CO., LTD. All rights reserved

www.huawei.com

Internal


HUAWEI TECHNOLOGIES CO., LTD. All rights

reserved

� External first, then internal

�Exclude external problems first

− IF cable, switch failure

− Power failure, grounding

� Station first, then boards

�Try your best to locate the troubles to one node

�Microwave side first, then SDH side

�First check the Microwave side problems

�Higher-severity alarms first, then Lower-severity alarms

�First analyze critical/major alarms

�Then come to minor/warning alarms

Basic Principles for Locating Faults

165



reserved

Common Methods of Fault Locating

� Alarm and performance analysis

� Loopback

� Replacement

� Configuration data analysis

� Configuration modification

� Test with instruments

� Rule of thumb


reserved

� Use NMS How to obtain alarms and performance?

� Observe indicators on

boards and cabinets

•Not detailed

•No history alarms

•Comprehensive•All alarms/performance events from the whole network

•Accurate• Current alarms, history

alarms, occurrence time and performance event data can be queried.

Alarm and Performance Analysis

166



reserved

Obtain alarm and

performance events

Select the key alarm or

performance events

Analyze reasonsLimit the troubles to a

certain range or a node



reserved

R-LOF

1 2 3

MW-RDI

HSB-INDI


� Description

�NE1 & NE2 is STM-1 capacity 1+1 configuration;

�After switching, that was an alarm “R_LOF" on NE1;

�Alarm "MW_RDI", “HSB_INDI” on NE2.

167



reserved


� Possible reasons:

�Second ODU is faulty;

�IF-board is faulty;

�TX/RX Frequencies of the second (protection) ODU are

different from the other three ODUs on this hop;

�Hybrid Coupler is faulty;

�There is water in hybrid coupler;

�IF-Jumper is faulty;

�IF-board is faulty.


reserved

Line RTN equipment Line

InloopInloop

Inloop

outloop outloop

outloop

Tributary

Loopback

�What is loopback?

Loopback is the most common, most efficient

method in troubleshooting.

168



reserved

Locate single station faults. Roughly

determines the line board failure. Be no

need to modify service configuration

Loopback by

optical

interface

Patch fiber,

NMS

Inloop/

outloopLine board

Separate switching faults from transmission

faults. Determine the tributary board failure

roughly. Be unnecessary to modify service

configuration.

Loopback at

path level

Loopback

cable, NMS

Inloop/

outloop

Tributary

board

the ODU supports RF port inloops and IF

port inloops/outloops, separate the faults in

the IFunits or the ODU

Loopback by

the IF/RF portNMS

Inloop/

outloopIF/RF port

Loopback

tools

Loopback

levelApplication

Loopback

options

Board

involved

May interrupt the traffic and ECCSoftware loopback is not a thorough method

Will automatically be removed in 5 minutes (provisionable)Notes

Loopback


reserved

Replacement

�Effective thoughts

�MSP switch

�SNCP switch

�1+1 SD/FD switch

�1+1 HSB switch

�Objective

�Fiber

�Cable

�Module

�Board

�Application

�External faults

�Boards faults

169



reserved

� Query & Analyze the configuration

�Timeslot configuration

�J1 or C2 bytes

�LU、TU、IF unit or ODU loopback

�SNCP or MSP switching conditions (e.g. MS-SD)

�External commands (e.g. locked switch)

�The consistency of the frequency between two nodes

�The appropriate transmission power of the ODU

Configuration Data Analysis


reserved

Voltage/current/resistanceMulti-meter

Bit error/traffic/overhead bytes ……SDH analyzer

Optical powerOptical power meter

Bit error/trafficBit error testing device

Test itemInstrument

This method is the most authoritative, but we must have the devices in hand.

Testing Instrument

170



reserved

Rule of Thumb

� Reset board

� Power off and on

� Resend the configuration

Last resort

� Do not consider them as a panacea

� They are not helpful for us to find the

cause of the failure.


reserved

Common Methods of Fault Locating

1. Evaluate the whole network situation.

2. Locate the faulty point preliminarily based on the collected data.

3. Cause no negative effect on normal services

4. Depend on the NMS

UniversalAlarm and

performance analysis

1. Independent of alarm and performance event analysis

2. Rapid and effective

Locate the fault to a single station or board

Loopback

1. Convenient

2. Require spare parts/equipment.

3. Applied with other methods

Locate the fault to a board or isolate external faults

Replacement

1. Can find the fault cause.

2. Fault locating time is longer.

3. Depend on the NMS

Locate the fault to a single station or board

Configuration data analysis

1. Have a high risk.

2. Depend on the NMSLocate the fault to a board

Configuration modification

1. A general method with high accuracy

2. Have certain requirements for the meters.

3. Applied with other methods

Isolate external faults and resolve interconnectivity

problem

Test with instruments

1. Fast fault handling

2. High probability of mistake

3. Need experience accumulation.

Special casesExperience

Methods Features Application

171



reserved

Common Troubleshooting Sequence

Exclude external troubles

Switching problem?

Fiber problems?

Trunk cable?

Power supply system?

Grounding problem?

Replacement

Instrument

testing

Loopback

Alarm/performance analysis

Locate troubles to one NE

Loopback

Alarm/performance analysis

Locate the troubles to one board

Replacement LoopbackAlarm/performance analysisConfiguration analysis

Configuration modification Rule of Thumb


reserved

Contents

1. Troubleshooting Preparation

2. Troubleshooting Idea and Methods

3. Classified Troubleshooting Examples

172



reserved

Classified Troubleshooting Examples

� Traffic Interruption

� Wrong configuration

� Bit Errors


reserved

� Description

�Hardware version is V1R2, can not configure 16E1 services ( just

can configure 11E1 services);

�There are no other services;

�The link between NE1 & NE2 was configured 1+1HSB;

Traffic Interruption

1 2

16

E1

16

E1

173



reserved


Check the license

License just can support 23 E1( 7 E1 for free) and the 1+1 HSB need

the 32 E1 license capacity

� Handling process

Change the license

Delete the 1+1 HSB configuration

Generate the some alarms


reserved



Other

configurations be changed ?

Check the ODU

launch frequency or the receiving

power

Use other configuration

guides

Check the configuration for

1+1HSB

YES

NO

1 2

16E1

16E1

MW-LOF LOG_OUT

174



reserved



Wrong operation process to delete the 1+1 HSB

Shut down the ODU and configure the 1+1 HSB again

Analysis: configure the 1+1HSB, both ODUs are

set unmute status; After delete the protection

configuration, both ODUswill be disturbed each

other because they have

same launch frequency and polarization ;


reserved




� Bit Errors

175



reserved

Wrong configuration

1 2

16

E1

16

E1

Config_nosupport

� Description

�NE1 configure 1+0 protection, at the 15 GHz band, and with 16E1 PDH;

�NE1 ODU remains mute though it is set to the unmute status;

�NE1 ODU transmits signals at the power of -55 dBm though its launched

power is set to 21 dBm;

�NE1 generates the Config_nosupport alarm.


reserved

Wrong configuration

The launched power of ODU is out of the range?


The transmit frequency of ODU is out of the range?

The range is -6 to 24dbm, and the launched power is 21 dbm;

The range is 15GHZ band, and the

actual frequency is 1.46655 GHZ

The designed frequency is 14.6655 GHZ; so change the transmit

frequency to 14.6655 GHZ

176



reserved




� Bit Errors


reserved

Bit Errors

� Description

�Many bit errors generate in the microwave equipment for

the interval is between 15 to 25 minutes;

�The services are interrupted for 5 to 8 seconds each time;

�The equipment generate MW_RDI and MW_LOF alarms;

1 2

MW_RDI

MW_LOF

177



reserved

Bit Errors

Wrong configuration?


Query the alarms

Hardware problems?

Inconsistent working modes or

working frequencies of the ODUs

at the local and peer ends?

Yes

No

No

No

MW_RDI:

When this alarm is reported, it means that the link is faulty and

consequently the peer end

receives error bits.

MW_LOF:

The performance of the microwave link deteriorates.

The receive function of the local end fails.

The working modes of the ODUs in the local and

peer ends are different.

The working efficiency of the ODUs in the local and peer ends are different.


reserved

Bit Errors

The MW_RDI and MW_LOF alarms are related to the link performance

deterioration

a new link is created and the frequency interference occurs

between the new and existing links

After modify the receive and transmit powers of the ODUs at the local and

peer ends, the problem is solved.


Guess: other company

creates a new microwave hop and the

new microwave hop shares the site with

Huawei.

178



reserved

Questions

� What is the key of troubleshooting?

�To locate a failure ACCURATELY in certain station

� What is the principle of troubleshooting?

�External first, then internal

�Station first, then boards

�Microwave first, then SDH

�Higher-severity alarms first, then lower-severity alarms


reserved

Summary

� Which methods for troubleshooting?

� Alarm and performance analysis

� Loopback

� Replacement

� Configuration Data Analysis

� Configuration Modification

� Test with instruments

� Rule of Thumb

179


www.huawei.com

Thank You

180

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