SJ-20110323100313-007-ZXSDR BS8900A C100(V2.5)Routine Maintenance Guide

ZXSDR BS8900A C100CDMA Outdoor Basestation-8900A

Routine Maintenance Guide

Version: V2.5

ZTE CORPORATIONNO. 55, Hi-tech Road South, ShenZhen, P.R.ChinaPostcode: 518057Tel: +86-755-26771900Fax: +86-755-26770801URL: http://ensupport.zte.com.cnE-mail: [email protected]

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Revision History

Revision No. Revision Date Revision Reason

R1.1 2012–05–10 Add the content “Cleaning the Dust Filter Meshes” and delete the

content “Common Maintenance Operation”.

R1.0 2011–06–30 First edition

Serial Number: SJ-20110323100313-007

Publishing Date: 2012–05–10

About This ManualPurpose

This manual describes routine maintenance of the ZXSDR BS8900A C100.

Intended Audience

This document is intended for:

l Maintenance engineersl Software debugging engineersl Engineering technical engineers

Prerequisite Skill and Knowledge

To use this document effectively, users should have a general understanding of ZXSDRBS8900A C100 equipment and its components. Familiarity with the following is helpful:

l CDMA2000 fundamentalsl ZXSDR BS8900A C100 hardware structure

What is in This Manual

This manual contains the following chapters:

Chapter Summary

1, Maintenance Overview Describes categories, methods and precautions of ZXSDR BS8900A

C100 routine maintenance and maintenance information collection tables.

2, Routine Maintenance Describes daily, monthly, quarterly, half-yearly and annual routine

maintenance items of ZXSDR BS8900A C100.

3, Module Replacement Describes how to replace modules during maintenance and relevant

precautions.

4, Cable Replacement Describes how to replace cables during maintenance and relevant

precautions.

Appendix A, Cleaning

Dust Filter Meshes

Describes how to clean dust filter meshes during maintenance and

relevant precautions.

Appendix B, Maintenance

Record Tables

Provides various reference maintenance record tables for routine

maintenance.

Conventions

This manual uses the following typographical conventions:

I

Typeface Meaning

Italics Variables in commands. It may also refer to other related manuals and documents.

Bold Menus, menu options, function names, input fields, option button names, check boxes,

drop-down lists, dialog box names, window names, parameters, and commands.

Constant

width

Text that you type, program codes, filenames, directory names, and function names.

[ ] Optional parameters.

{ } Mandatory parameters.

| Separates individual parameters in a series of parameters.

Danger: indicates an imminently hazardous situation. Failure to comply can result in

death or serious injury, equipment damage, or site breakdown.

Warning: indicates a potentially hazardous situation. Failure to comply can result in

serious injury, equipment damage, or interruption of major services.

Caution: indicates a potentially hazardous situation. Failure to comply can result in

moderate injury, equipment damage, or interruption of minor services.

Note: provides additional information about a certain topic.

II

ContentsAbout This Manual ......................................................................................... I

Chapter 1 Maintenance Overview ............................................................. 1-11.1 Maintenance Categories ..................................................................................... 1-1

1.2 Common Maintenance Methods.......................................................................... 1-2

1.3 Common Maintenance Precautions ..................................................................... 1-3

1.4 Maintenance Record Tables................................................................................ 1-4

1.4.1 Basic Maintenance Information Collection Table ......................................... 1-4

1.4.2 Version Information Collection Table .......................................................... 1-5

Chapter 2 Routine Maintenance................................................................ 2-12.1 Routine Maintenance Definition........................................................................... 2-1

2.2 Routine Maintenance Items................................................................................. 2-2

2.3 Routine Maintenance Schedule........................................................................... 2-2

2.4 Daily Maintenance Guide.................................................................................... 2-2

2.5 Monthly Maintenance Guide ............................................................................... 2-4

2.6 Quarterly Maintenance Guide ............................................................................. 2-8

2.7 Half-Yearly Maintenance Guide .......................................................................... 2-9

2.8 Annual Maintenance Guide ............................................................................... 2-10

Chapter 3 Module Replacement ................................................................ 3-13.1 Replacing a PM.................................................................................................. 3-1

3.2 Replacing a CH/FS/CC....................................................................................... 3-2

3.3 Replacing an SA ................................................................................................ 3-3

3.4 Replacing an RSU.............................................................................................. 3-4

3.5 Replacing an RSU82 .......................................................................................... 3-4

3.6 Replacing an FA................................................................................................. 3-5

Chapter 4 Cable Replacement................................................................... 4-14.1 Replacing the Power Input Cable of the Baseband Power Cabinet ........................ 4-1

4.2 Replacing the Grounding Cable of the Baseband Power Cabinet........................... 4-2

4.3 Replacing the Cable Connecting the Baseband Power Cabinet to Batteries ........... 4-3

4.4 Replacing the BBU Power Input Cable................................................................. 4-4

4.5 Replacing the Serial Port Power Monitoring Cable Connecting ADPD1 to BBU ...... 4-5

4.6 Replacing the Cable Connecting the BBU to the RSU........................................... 4-6

4.7 Replacing Optical Fibers Between BBU and RSU................................................. 4-7

4.8 Replacing the Dry Contact Cable Externally Provided by BBU............................... 4-9

I

4.9 Replacing the Cable Connecting BBU to LPU .................................................... 4-10

4.10 Replacing the Ethernet Cable on BBU ..............................................................4-11

4.11 Replacing the RF Cable Between the GPS Lightning Arrester and the CCBoard of BBU ................................................................................................. 4-12

4.12 Replacing the Door Status Monitoring Cable of the Battery Cabinet ................... 4-13

4.13 Replacing the Battery Temperature Monitoring Cable........................................ 4-14

4.14 Replacing the Battery Flooding Monitoring Cable.............................................. 4-15

4.15 Replacing the E1/T1 Cable on LPU ................................................................. 4-15

4.16 Replacing the DC Power Cable of the RF Cabinet ............................................ 4-16

Appendix A Cleaning Dust Filter Meshes .............................................. A-1A.1 Cleaning the BC8910 Dust Filter Mesh................................................................A-1

A.2 Cleaning the RC8910 Dust Filter Mesh................................................................A-3

Appendix B Maintenance Record Tables ................................................ B-1B.1 Daily Maintenance Record Table.........................................................................B-1

B.2 Monthly Maintenance Record Table.....................................................................B-2

B.3 Quarterly Maintenance Record Table ..................................................................B-3

B.4 Half-yearly Maintenance Record Table ................................................................B-4

B.5 Annual Maintenance Record Table......................................................................B-5

B.6 Sudden Fault Handling Record Table ..................................................................B-5

B.7 Module Replacement Record Table.....................................................................B-6

B.8 Cable Replacement Record Table .......................................................................B-7

Figures............................................................................................................. I

Tables ............................................................................................................ III

Glossary .........................................................................................................V

II

Chapter 1Maintenance OverviewTable of Contents

Maintenance Categories.............................................................................................1-1Common Maintenance Methods.................................................................................1-2Common Maintenance Precautions............................................................................1-3Maintenance Record Tables .......................................................................................1-4

1.1 Maintenance CategoriesMaintenance is categorized into following two types:

l Routine Maintenancel Troubleshooting

Routine Maintenance

Routine maintenance tasks come under the preventive maintenance operation tasks.The preventive maintenance operations are performed on schedule to monitor thesystem regularly, and to get sustained services from ZXSDR BS8900A C100. Routinemaintenance allows maintenance personnel to identify potential hazards, which enablethe maintenance personnel to resolve these problems in time. Performing these tasks ina timely manner can prolong the life of components and therefore reduce system-downtime.

The goal of routine maintenance is to enhance the system performance and service for alonger period of time at minimum usage of resources.

Troubleshooting

Troubleshooting is a kind of unpredictable maintenance. It means the immediate handlingfor the failed equipment if there is a problem. The key target of troubleshooting is to restorethe service as soon as possible.

Determine the potential causes of the fault. If the fault occurs, perform troubleshootingaccording to this guide. In addition, contact the ZTE customer support center for advancedtechnical support.

Collect the alarm information, and send the related failure handling report and event logsto ZTE for analysis.

1-1

SJ-20110323100313-007|2012–05–10 ZTE Proprietary and Confidential

ZXSDR BS8900A C100 Routine Maintenance Guide

1.2 Common Maintenance MethodsThis section describes some common methods for analyzing and troubleshootingfaults, which are different from the troubleshooting methodology. The troubleshootingmethodology is a kind of thinking rule, which guides the practice of detailed troubleshootingmethods. Following is the detailed description of common maintenance methods.

Fault Analysis

Generally, a wireless network consists of various equipment entities. The fault symptomof a kind of equipment entity is different from that of other kinds. Therefore, whenmaintenance personnel finds a fault or receives a fault report, he/she should analyze thefault symptom and judge from what kind of equipment entity the fault comes first. Thencheck the equipment entity further.

The analysis of fault symptom is important especially for emergent faults. To avoid wrongmaintenance operations on normal equipment entities, maintenance personnel shouldanalyze fault symptoms carefully and locate faulty equipment entity correctly. Moreover,it costs less time to troubleshoot faults on the basis of correct analysis.

Alarm and Log Analysis

A BS systemmakes records of error messages and important operation parameters duringits running.

Error messages and important operation parameters are saved in the alarm database andin the log files of the OMC server. Log files include operation logs and system logs. Thealarm management function is used to check the running status of the BS system, OMCserver, database and external power supply, collect fault information and exceptions, andgive literal, graphic, visible or audible alarm messages so that maintenance personnel cantroubleshoot failures in time to guarantee normal operation of the whole system.

Alarm messages are saved in the database for further reference and analysis. You canview operation logs and system logs through the log management system. Logs can bedisplayed in a specified sequence according to custom filtering conditions for quick displayof the expected log information.

The analysis of alarms and logs is helpful for troubleshooting faults and finding potentialdangers to the system in time.

Signaling Tracing and Analysis

Signaling tracing is a useful troubleshooting tool built in the ZXSDR BS8900A C100system. It helps to find the fault source on the basis of analysis of the correspondingsignaling flow, messages transmitted in the flow, and parameters in each message.

1-2


Chapter 1 Maintenance Overview

Test and Analysis with InstrumentsThis is a common troubleshooting method. You can use proper instruments to measureoperation indexes and environment indexes of a system and compare themwith the normalindexes to find out the cause leading to the difference.

Replacement MethodThe replacement method is used to locate fault. For example, when a fault occurs, replacea possible faulty part with a normal spare one. If the fault disappears, it can be judged thatthe replaced part is faulty.

The principle of part replacement is as follows: Replace the part which reports an alarmwith a good one. If the alarm disappears, it indicates that this part is the faulty one. If thealarm still exists after the part is replaced, analyze the fault further and replace other partswhich are possibly faulty.

The replacement method is simple and practical. Moreover, it can be used to compare thestatus, parameters, logs and parameter configuration of same parts for inconsistency.

Note:

The replacement operation is only carried out in safe time period to avoid serviceinterruption.

1.3 Common Maintenance PrecautionsOverviewBefore and during maintenance, take necessary precautionary measures to ensure safetyof the maintenance personnel and smoothness of maintenance tasks.

Safety PrecautionsThe power supply input voltage exceeds safety limits for human contact. Ensure adequatesafety measures to avoid any electric shock risk or equipment damage.

Operation PrecautionsEnsure the following precautions during maintenance:

l ESD Procedures

The proper ESD procedures must be followed before working with the ZXSDRBS8900A C100 modules.

l Handling RF Cables and Connections

à Avoid sharp bends.

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à Follow required procedures while handling with connections, especially whichrequire the use of torque wrenches.

à Never apply power to a RF cable or disconnect a RF cable, when it is in workingmode.

l Other Precautions

à Make record of all maintenance procedures and steps including versionupgrades, data backup and troubleshooting.

à Ensure the availability of frequently used tools and meters, screw drivers(Philips-/Flathead-screwdrivers), signaling meter, network cable pliers,multimeter, and network cables. Check and calibrate meters to ensure accuracy.

à Check spare parts and components frequently to ensure their availability andintactness. Mark and store damaged parts after maintenance at some separateplace. Avoid storing of damaged parts with new spare parts.

à Maintenance personnel should analyze the cause of every particular fault, andfigure out the potential source of hazard before proceeding further.

à Check the availability of system documents, including the technology, installation,operation, and maintenance manuals for reference at maintenance time.

1.4 Maintenance Record Tables

1.4.1 Basic Maintenance Information Collection TableTable 1-1 gives the equipment information to be collected during ZXSDR BS8900A C100maintenance.

Table 1-1 Maintenance Information Collection Table

Maintenance Information Collection Table

ZXSDR BS8900A

C100 name

North latitude

ZXSDR BS8900A

C100 type

East longitude

ZXSDR BS8900A

C100 No.

Height above sea level

ZXSDR BS8900A

C100 ID (OMC

configuration)

City/County Equipment room fixed

number

Detailed room po-

sition description

1-4


Chapter 1 Maintenance Overview

Maintenance Information Collection Table

Abis interface net-

working mode de-

scription

Baseband-RF in-

terface network-

ing description

1.4.2 Version Information Collection TableThe collection of ZXSDR BS8900A C100 version information is to facilitate ZXSDRBS8900A C100 maintenance. Table 1-2 gives the ZXSDR BS8900A C100 versioninformation that needs to be collected.

Table 1-2 ZXSDR BS8900A C100 Version Information

Module Version

CC

CH

FS

SA

FA

CVI

USR

PM

RTR

Description:

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1-6


Chapter 2Routine MaintenanceTable of Contents

Routine Maintenance Definition..................................................................................2-1Routine Maintenance Items........................................................................................2-2Routine Maintenance Schedule..................................................................................2-2Daily Maintenance Guide ...........................................................................................2-2Monthly Maintenance Guide ......................................................................................2-4Quarterly Maintenance Guide ....................................................................................2-8Half-Yearly Maintenance Guide .................................................................................2-9Annual Maintenance Guide ......................................................................................2-10

2.1 Routine Maintenance DefinitionRoutine maintenance is to periodically perform preventative maintenance and detectionon equipment, so as to make the equipment operate properly for a long time.

Routine maintenance includes the following tasks:

l Regular maintenance and detection. The maintenance personnel is required toregularly check the running status, functions, major performance indices, and thehardware of the ZXSDR BS8900A C100 equipment using necessary instruments andtools in accordance with the OMM operation specifications and ZXSDR BS8900AC100 equipment technical specifications.

l Regular check and cleaning. The maintenance personnel is required to regularlycheck the ZXSDR BS8900A C100 equipment and its auxiliary devices, and to replacefaulty or unsatisfactory parts in time. The maintenance personnel should regularlymaintain and clean the parts that are damageable or require a high–level anti-dustprotection, as well as the key parts of the peripherals.

A proper work cycle plan for ZXSDR BS8900A C100 routine maintenance isrecommended.

Note:

The operating status of ZXSDR BS8900A C100 can be observed at the OMM. The OMMmaintenance personnel is responsible for routine maintenance of ZXSDR BS8900A C100.

2-1



2.2 Routine Maintenance ItemsRoutine maintenance is to keep equipment in the best operation status so as to meetvarious service requirements.

The ZXSDR BS8900A C100 routine maintenance involves the following fundamentaltasks:

l Work environment inspectionl Performance statisticsl Maintenance of the alarm systeml Data backupl Backup inspectionl Board maintenancel Log inspectionl Inspection of the grounding and lightning systeml Inspection of the running status of the power systeml Inspection of the antenna feeder systeml Preparations before holidays and festivals

Note:

For more details about the above operations, refer to the ZXMBW BSS Mobile BroadbandWireless Base Station System Operation Manual.

2.3 Routine Maintenance ScheduleDepending upon the tasks to be performed, routine maintenance is scheduled on periodicbasis, including:

l Daily Maintenancel Monthly Maintenancel Quarterly Maintenancel Half-Yearly Maintenancel Annual Maintenance

2.4 Daily Maintenance GuideDaily maintenance indicates the equipment maintenance tasks that should be carried outevery day, including alarm system check, equipment operation check, service operationcheck, and performance indices check.

Table 2-1 gives the daily maintenance check list.

2-2


Chapter 2 Routine Maintenance

Table 2-1 Daily Maintenance Guide

Item Sub-item Operation Guide Expected Result

Alarm box 1. Check whether the alarm

box communicates with the

OMC server normally.

2. Check whether the audible

and visual alarm from the

alarm box is normal.

3. Check whether the buttons

on the alarm box function

normally.

1. The communication is

normal.

2. The audible and visual

alarm is normal.

3. The buttons function

normally.

Alarm and

notification

check

Alarm and

notification message

query

1. Start an OMC client to log

on to the OMC server. In the

main window, choose Views> Fault Management >Alarm Management to openthe Alarm Management]window.

2. Choose BSSB > BSCB >[BS8800] > Rack Group in

the left configuration tree.

3. View whether there are

uncleared alarms about the

ZXSDR BS8900A C100.

There are no uncleared

alarms displayed on the

AlarmManagement window.

Common faults

handling

Handle common faults,

for example, transmission

equipment faults and board

faults.

N/ATroubleshoot-

ing

User complained

faults handling

Analyze and handle the

network quality problems that

users complain.

N/A

Performance

indices check

Performance indices

query

1. Start an OMC client to

log on to the OMC server.

In the main window, choose

Views > PerformanceManagement to open the

Performance Managementwindow.

2. Choose PerformanceManagement > Query RawData.3. Click Advanced to display

the Advance dialog box.

The performance indices are

in the required ranges.

2-3



Item Sub-item Operation Guide Expected Result

4. Select Group and set

Group by time informationto Day, and Group byNE location to BTS.Set performance object

attributes. Expand the

navigation tree in Selectposition and select

[BS8800].5. Click OK to return to the

Query Raw Data window.

Select a performance object

and click Local Query.

Equipment

environment

check

Equipment

environment alarm

query

1. Start an OMC client to log

on to the OMC server. In the

main window, choose Views> Fault Management >Alarm Management to openthe Alarm Managementwindow.

2. Select ZXC10 BSSB in

the left pane, and an alarm

diagram is displayed. Click

View in Environment todisplay the Environmentwindow.

3. View whether there are

ZXSDR BS8900A C100

alarms in the alarm list.

There are no uncleared

ZXSDR BS8900A C100

alarms.

2.5 Monthly Maintenance GuideMonthly maintenance indicates the equipment maintenance tasks that the maintenancepersonnel should carry out every month, including room environment check, equipmentcheck, cable connection check, and check on spare materials and parts. Table 2-2describes the check items of the monthly maintenance and gives detailed operationguides.

2-4



Table 2-2 Monthly Maintenance Guide

Item Sub-item Operation Step Expected Result

Check on

temperature

View the thermometer in the room. l In normal conditions,

the temperature in

the equipment room

should be in the range

from 15℃ to 30℃.l If the room

temperature cannot

meet the requirement

for a long time, it

is recommended to

overhaul or replace

the air conditioner

system in the room.

Check on

room envi-

ronment

Check on

humidity

View the hygrometer in the room. l In normal conditions,

the relative humidity in

the equipment room

should be in the range

from 40% to 65%.

l If the relative humidity

is too high, it is

recommended to

install a dehumidifier

in the room. If it is too

low, it is recommended

to install a humidifier.

Check on the

power supply

system

1. Check the appearance and

connections of the power input

and output terminal bars in the

power distribution subrack.

2. Check the appearance and

connections of the power input

and output terminal bars of

the components in the cabinet.

Check whether the power

connectors and sockets are

in good conditions and in

good connections and whether

any corrosion, overcurrent or

over-temperature occurs on

them.

l All joints are in reliable

contact and good

connection without

corrosion or long-term

heat.

l All devices look

good without shape

distortion.

l The normal voltage

is -48 V DC and the

maximum variation

range is from -40 V DC

to -57 V DC.

Check on

the cabinet

2-5




3. Measure the input and output

voltages of the power distribution

box using a multimeter.

Check on the

grounding system

1. Check whether the connecting

terminals and captive screws of

all the grounding cables in the

cabinet are in good condition,

contact and connection.

2. Measure the grounding

resistance of the equipment

room using a grounding

resistance tester.

l All joints are in

reliable contact and

connection without

corrosion or being

loose.

l The joint grounding

resistance is less than

5 ohm.

Check on the

protective system

1. Check whether the top or the

inner of the cabinet is attached

by foreign bodies.

2. Check whether the

rodent-resistance net installed

covering each signal cable outlet

on the top and at the bottom of

the cabinet are properly installed

without breakage.

l The top or the inner

of the cabinet is clean

without any foreign

body attached.

l All rodent-resistance

nets are in good

condition and reliably

installed.

Check on

the dustproof

condition

1. Clean the shell of the cabinet

with a dry and clean cotton cloth

and clean the surroundings of

the air inlets at the bottom of the

cabinet with a vacuum cleaner.

2. Remove the dustproof nets from

the cabinet and wash them with

water.

3. After these dustproof nets are

air dried, install them back. For

more detail, refer to A Cleaning

Dust Filter Meshes .

l The shell of the cabinet

and the surrounding of

the air inlet are clean

without dust, so as

to ensure that the air

channel is through and

the air led in is pure

and clean.

l The dustproof nets

and net frames are

clean without dust.

2-6




Check on the

trunk cable

1. Check whether the connectors

of the trunk cable are in good

and reliable contact.

2. Check whether the trunk cable is

in good condition.

3. Check whether the labels on the

trunk cable are correct and clear.

l The trunk cable is in

reliable contact.

l The trunk cable is in

good condition.

l The labels are correct

and clear.

Check on the fiber 1. Check whether the connectors

of the fiber connecting the BBU

and RSU are in reliable contact.

2. Check whether the fiber is in

good condition.

3. Check whether the labels on the

fiber are correct and clear.

l The fiber is in reliable

contact.

l The fiber is in good

condition.


and clear.

Check on

cable con-

nections

Check on the

data cable and

the monitoring

cable

1. Check whether the connectors

of the data cable and the

monitoring cable are in reliable

contact.

2. Check whether these cables are

in good condition.

3. Check whether the labels on

these cables are correct and

clear.

l The cables are in

reliable contact.

l The cables are in good

condition.


and clear.

Check on

the storage

environment of

spare materials

and parts

Regularly check the storage

environment of spare materials

and parts, including fireproof,

moisture-proof, dustproof,

anti-magnetic, ventilation, and

shockproof environments.

The storage environment

meet the ZTE equipment

storage requirements.

Check

on spare

materials

and parts

Check on the

quantities of

spare materials

and parts

Check whether the types and

quantities of spare materials and

parts meet the demand on equipment

maintenance.

l At least one backup

board is available for

each board type. For

the CC and FS boards,

at least two backup

boards are available

for each.

l All spare materials

and parts are properly

stored, without any

crack, damage,

2-7




or corrosion. The

damaged or replaced

parts can be repaired

in time.

2.6 Quarterly Maintenance GuideQuarterly maintenance indicates the equipment maintenance tasks that the maintenancepersonnel should carry out every quarter, including equipment room check, RF cable checkand GPS cable check. Table 2-3 describes the check items of the quarterly maintenanceand gives detailed operation guides.

Table 2-3 Quarterly Maintenance Guide


Check on the

fire extinguishing

system

Check the key devices and parts

for fire prevention, including the

power distribution cabinet, ZXSDR

BS8900A C100 cabinet, subracks,

and the cabling trough.

Check the fire extinguishing devices

in the equipment room, including the

water supply system, fire hydrant,

fire extinguisher, and the alert

system.

All devices and parts do

not lead to a fire risk.

All required fire

extinguishing devices

are available and in good

condition.

Check on the

anti-theft system

Check the doors, windows and

anti-theft nets of the equipment

room.

All doors, windows and

anti-theft nets are in good

condition.

Check on

room envi-

ronment

Check on the

air conditioner

system

Check the running status of the air

conditioner in the equipment room

and the ventilation condition of the

outdoor unit.

The air conditioner works

well. The outdoor unit

is in an area with good

ventilation and the

compressor works well.

2-8




Check on the RF

cable

Check whether the connectors of the

RF cable are well waterproofed and

in reliable contact.

Check whether the RF cable is in

good condition.

Check whether the labels on the RF

cable are correct and clear.

1. The RF cable is well

waterproofed and in

reliable contact.

2. The RF cable is in good

condition.

3. The labels are correct

and clear.

Check on

cable con-

nections

Check on the

GPS cable

Check whether the connectors of the

GPS cable are well waterproofed

and in reliable contact.

Check whether the GPS cable is in

good condition.

Check whether the labels on the

GPS cable are correct and clear.

1. The GPS cable is in

reliable contact.

2. The GPS cable is in

good condition.

3. The labels are correct

and clear.

2.7 Half-Yearly Maintenance GuideHalf-yearly maintenance indicates the equipment maintenance tasks that the maintenancepersonnel should carry out every half year, including equipment cleaning and boarddiagnosis test. Table 2-4 describes the check items of the half-yearly maintenance andgives detailed operation guides.

Table 2-4 Half-yearly Maintenance Guide


Cleaning of fan

subracks

Clean the fan blades and circuit

boards of spare fan subracks with

a clean cotton cloth, an anti-static

soft brush, and a vacuum cleaner.

Replace a fan subrack that is

running with one spare fan subrack.

Note that the replacement must be

finished in five minutes. Clean the

replaced fan subrack in the same

way and then store it as a spare fan

subrack. Repeat steps 2 and 3 to

replace other fan subracks.

The fan subracks are clean

and free of dust.

Equipment

cleaning

Cleaning of air

deflectors

Remove an air deflector from the

cabinet and clean it with a clean

cotton cloth, an anti-static brush,

and a vacuum cleaner. Install the

cleaned air deflector on the cabinet.

The air deflectors are clean

and free of dust.

2-9




Repeat steps 1 and 2 to clean other

air deflectors.

Board

diagnosis

test

Board diagnosis

test

1. Log on to the OMC server. In

the main window, choose Views >Fault Management > DiagnosisManagement to open the DiagnosisManagement window.2. In the left pane, choose BSSB >BSCB > [BS8800] > Rack Group to

display the rack diagram.

3. Select one or more boards to be

tested. The selected board turns

gramineous.

4. Choose Operation > Test Boardto start a diagnosis test.

Upon completion of the

test, the board turns

yellowish green. Click

the board to view the test

results. The test results

are normal.

2.8 Annual Maintenance GuideAnnual maintenance specifies the equipment maintenance tasks that the maintenancepersonnel should carry out every year, including board switchover test and check on theRF system. Table 2-5 describes the check items of the annual maintenance and givesdetailed operation guides.

Precautions for board switchover are as follows:

l The protective switchover between the active and standby systemsmust be performedduring light traffic, for example, after midnight.

l Make sure that the switchover does not cause conversation interruption or affectservices.

l The operation must be performed by the personnel who is familiar with the equipmentonly when the active and standby systems run normally because of its risk. It isrecommended to contact the ZTE technical support engineer before performing theoperation or do it under the guidance of the engineer.

Table 2-5 Annual Maintenance Guide


Board

switchover

test

CC board

switchover test

1. Log on to the OMC server. In

the main window, choose Views> Fault Management > AlarmManagement to display the

Alarm Management window.2. In the left pane, choose BSSB

> BSCB > [BS8800] > Rack

The CC board switchover

is performed normally.

Make a dialing test after

the switchover, and all

services work normally.

2-10




Group to display the rack

diagram.

3. Right-click the CC and choose

Switch Board Normally fromthe shortcut menu.

Check on

the RF

system

Standing-wave

ratio detection

Measure the standing-wave ratio of

the feeder with a VSWR tester.

The standing-wave ratio is

less than 1.5.

2-11




2-12


Chapter 3Module ReplacementTable of Contents

Replacing a PM..........................................................................................................3-1Replacing a CH/FS/CC...............................................................................................3-2Replacing an SA ........................................................................................................3-3Replacing an RSU......................................................................................................3-4Replacing an RSU82..................................................................................................3-4Replacing an FA.........................................................................................................3-5

3.1 Replacing a PMPrerequisite

l Wear an antistatic wrist strap.l Make sure that the new module is of the same type as the one to be replaced.

ContextTake the following precautions while replacing a PM module.

l Strictly comply with the operation procedures to avoid incorrect operations that maystrongly affect the system.

l After replacing the PMmodule, test and verify the related functions of the new moduleto ensure the successful replacement.

l While inserting the module, align it with the slot and insert it tightly. If the module isnot inserted tightly, the electric interference may occur during the system running, anddamage the module.

l While handling the module, the maintenance personnel must wear a standardantistatic wrist strap or antistatic glove. The earthing terminal of the wrist strap mustbe well earthed.

Perform the following steps to replace the PM module.

Steps1. Remove the module.

a. Pull out the micro-switch of the module slightly, to unlock the switch.

b. Slowly pull out the module along the guide rails, and extract the module out fromthe guide rails.

2. Plug the new module.

3-1



a. Insert and align the module with the left and right guide rails of the subrack.

b. Push the module along the guide rails till the module is completely inserted.

c. Hold the micro-switch on the left side of the module and pull it in, and make surethat the micro-switch is connected to the lock of the subrack.

– End of Steps –

3.2 Replacing a CH/FS/CCPrerequisite


ContextThe following describes the replacing procedure of CH /FS /CC module.

Take the following precautions while replacing a CH/FS/CC module.

l While replacing the CH/FS/CC module, record the version number of the module toavoid mismatching or incompatibility between the new module and system.

l Strictly comply with the operation procedures to avoid wrong operations that maystrongly harm the system.

l After replacing the CH/FS/CC module, test and verify the related functions of the newmodule to ensure the replacement is successful.

l If the fiber needs to be pulled out or plugged in during replacing the CH/FS/CCmodule,please protect the fiber connector from getting dirty.

l While inserting the module, notice to align it with the slot and insert it tightly. If themodule is not inserted tightly, the electric interference may occur during the systemrunning, and damage the module.

l While handling the module, the maintenance personnel must wear a standardantistatic wrist strap or antistatic gloves. The earthing terminal of the wrist strap mustbe well grounded.

Perform the following steps to replace the CH/FS/CC module.


a. Do a small pull out on the micro-switch of the module, to unlock the switch.





3-2


Chapter 3 Module Replacement

c. Hold the left micro-switch of the module and pull it in, and make sure that themicro-switch is connected to the lock of the subrack.


3.3 Replacing an SAPrerequisite


Context

The following describes the replacing procedure of SA module.

Take the following precautions while replacing an SA module.

l While replacing the SA module, record the version number of the SA module andavoid the un-matching or incompatibility of the new module and system.

l Strictly comply with the operation procedures to avoid wrong operations that maystrongly affect the system.

l After replacing the SA, test and verify the related functions of the newmodule to ensurethe successful replacement.

l While inserting the module, align it with the slot and insert it tightly. If the module isnot inserted tightly, the electric interference may occur during the system running, anddamage the module.

l While handling the module, the maintenance personnel must wear a standardantistatic wrist strap or antistatic gloves. The earthing terminal of the wrist strap mustbe well earthed.

Perform the following steps to replace the SA module.

Steps

1. Remove the module.

a. pull out the micro-switch of the module, to unlock the switch.




b. Push the module along the guide rails till the module is completely inserted .

c. Hold the left micro-switch of the module and pull it in, and make sure that themicro-switch is connected with the lock of the subrack.


3-3



3.4 Replacing an RSUPrerequisite


Context

The following precautions must be taken during the replacement of an RSU module.

l While replacing the RSU module, record the version number of the module to avoidmismatching or incompatibility between the new module and the system.

l Strictly comply with the operation procedure to avoid wrong operations that maystrongly harm the system while replacing the RSU module.

l After replacing the RSUmodule, test and verify the related functions of the newmoduleto ensure the replacement is successful.

l While inserting the module, align it with the slot and insert it tightly. If the module isnot inserted tightly, the electric interference may occur during the system running anddamage the module.


Steps


a. Pull out the micro-switch of the module slightly to unlock the switch.

b. Slowly pull out the module along the guide rails.



b. Hold the micro-switch on the left side of the module and push the module alongthe guide rails till the module is completely inserted. Ensure that the micro-switchis well connected to the lock of the subrack.


3.5 Replacing an RSU82Prerequisite


3-4


Chapter 3 Module Replacement

ContextThe following precautions must be taken during the replacement of an RSU82 module.

l While replacing the RSU82 module, record the version number of the module to avoidmismatching or incompatibility between the new module and the system.

l Strictly comply with the operation procedure to avoid wrong operations that maystrongly harm the system while replacing the RSU82 module.

l After replacing the RSU82 module, test and verify the related functions of the newmodule to ensure the replacement is successful.

l While inserting the module, align it with the slot and insert it tightly. If the module isnot inserted tightly, the electric interference may occur during the system running anddamage the module.


Perform the following steps to replace an RSU82 module.


a. Pull out the micro-switch of the module slightly to unlock the switch.

b. Slowly pull out the module along the guide rails.



b. Hold the micro-switch on the left side of the module and push the module alongthe guide rails till the module is completely inserted. Ensure that the micro-switchis well connected to the lock of the subrack.


3.6 Replacing an FAPrerequisite


ContextTake the following precautions while replacing a FA module.

l Strictly comply with the operation procedures to avoid wrong operations that maystrongly affect the system.

l After replacing the FA, test and verify the related functions of the newmodule to ensurethe successful replacement.

3-5



l While inserting the module, notice to align it with the slot and insert it tightly. If themodule is not inserted tightly, the electric interference may occur during the systemrunning, and damage the module.

l While handling the module, the maintenance personnel must wear a standardantistatic wrist strap or antistatic gloves. The earthing terminal of the wrist strap mustbe well earthed.

Perform the following steps to replace a FA module.

Steps


a. Screw off two fastening screws on the right side of the FA module.



a. Insert and align the module with the upper/lower guide rails of the subrack.


c. Screw down the two screws.


3-6


Chapter 4Cable ReplacementTable of Contents

Replacing the Power Input Cable of the Baseband Power Cabinet .............................4-1Replacing the Grounding Cable of the Baseband Power Cabinet ...............................4-2Replacing the Cable Connecting the Baseband Power Cabinet to Batteries ...............4-3Replacing the BBU Power Input Cable .......................................................................4-4Replacing the Serial Port Power Monitoring Cable Connecting ADPD1 to BBU ..........4-5Replacing the Cable Connecting the BBU to the RSU ................................................4-6Replacing Optical Fibers Between BBU and RSU ......................................................4-7Replacing the Dry Contact Cable Externally Provided by BBU....................................4-9Replacing the Cable Connecting BBU to LPU ..........................................................4-10Replacing the Ethernet Cable on BBU......................................................................4-11Replacing the RF Cable Between the GPS Lightning Arrester and the CC Board ofBBU .........................................................................................................................4-12Replacing the Door Status Monitoring Cable of the Battery Cabinet .........................4-13Replacing the Battery Temperature Monitoring Cable ...............................................4-14Replacing the Battery Flooding Monitoring Cable .....................................................4-15Replacing the E1/T1 Cable on LPU ..........................................................................4-15Replacing the DC Power Cable of the RF Cabinet....................................................4-16

4.1 Replacing the Power Input Cable of the BasebandPower Cabinet

Prerequisite

l Wear an ESD wrist strap.l Make sure that the type of the new power cable is the same as that of the old power

cable, and their lengths must be the same.

ContextThe power input cable for the baseband power cabinet is a 3 x 10 mm2 outdoor powercable whose type is RVYZ3 x 10 mm2//ZA-RVY3*10.

For the cable wiring color coding and cable pin numbers, refer to Table 4-1.

Table 4-1 Color Definition of Input Power Cables for the Baseband Power Cabinet

Pin Signal

Definition

Description Wire Color End-A Entity End-B Entity

4-1



1 L AC phase wire L,

maximum current 60 A

Brown

2 N AC zero wire N,

maximum current 60 A

Black

3 PE AC protection ground

PE

Yellow

green

AC power

distribution

equipment

Power shielding

box in the AC

power cabinet

Steps

1. Set all power switches of the power distribution subrack to the OFF position.

2. Remove the connector at end A of the old power cable.

3. Open the power cable shielding box and remove the old power cable.

4. Connect end B of the new power cable according to the polarities marked on theshielding box.

5. Close the shielding box, cut off the bundling ties of the old power cable to remove theold power cable.

6. Route the new power cable according to the routing of the old power cable and bindthe cable with ties.

7. Connect end A of the new power cable to the power socket.

8. After replacement, properly handle the replaced power cable, and clean the field.


4.2 Replacing the Grounding Cable of the BasebandPower Cabinet

Prerequisite

Make sure that the type of the new ground cable has the same length as the old groundcable.

Context

Operators are responsible for completing the basic ground mat for the ground system,the ground engineering of towers and buildings, and determining the connection points ofthe indoor/outdoor ground copper bars. Onsite engineering personnel need to install theground PE cable to protect the ZXSDR BS8900A C100 chassis shell.

Figure 4-1 shows the appearance of the SFP cable of the ZXSDR BS8900A C100.

4-2


Chapter 4 Cable Replacement

Figure 4-1 Appearance of the Grounding Cable

Steps

1. Unscrew the screws on both ends of the ground cable to disassemble the groundcable.

2. Connect the copper lug on one end of the ground cable to the ground terminal of theZXSDR BS8900A C100.

3. Connect the copper lug on the other end of the ground cable to the ground bar.


4.3 Replacing the Cable Connecting the BasebandPower Cabinet to Batteries

Prerequisite



Context

Two 16 mm2 conductive cables are used to connect the baseband power cabinet andbatteries. End A of such a cable is an M8 terminal used for connecting to the battery boxand end B (with an outward length of 12mm) connects to the baseband power cabinet. Theends of the positive wires wear red heat shrinkage bushes and the ends of the negativewires wear blue heat shrinkage bushes.

Steps

1. Set all power switches of the power distribution subrack to the OFF position.

2. Remove the connector of the old cable connecting to the battery.

3. Remove the connector of the old cable connecting to the baseband power cabinet.

4. Cut off the bundling ties of the old cable to remove the old cable.

5. Connect end A and end B to proper positions according to the colors of the heatshrinkage bushes of the new cable.

6. Route the new cable according to the routing of the old cable and bind the cable withties.

4-3





4.4 Replacing the BBU Power Input CablePrerequisite



ContextFigure 4-2 shows the appearance of such a power cable.

Figure 4-2 Appearance of the Power Cable

In the ZXSDR BS8900A C100 system, the power cable is used to connect the PA moduleto the power supply.

Table 4-2 shows the connections of the power cable.

Table 4-2 Connections of the Power Cable

Sequence Name SignalDescription

End A Pin End B Pin

B1 PE Ground wire D-type shell Yellow or black

conductive wire

B2 -48 V GND Voltage: 0 V DC

Maximum power:

300 W

A1 Brown conductive

wire

B3 -48 V Voltage: -48 V DC

Maximum power:

300 W

A2 Blue conductive

wire

Steps1. Set all power switches of the power distribution subrack to the OFF position.

2. Record connections on end B, and remove B1, B2, and B3.

4-4



3. Remove end A that is connected to the PA module.

4. Cut the cable strap and pull the power cable out.

5. Insert end A of the new power cable to the socket of the PA module.

6. Fix the DC power cable along the left-side cabling bridge of the cabinet by using thestrap. Then, connect end B of the DC power cable to the corresponding equipmentthrough the left routing aperture.



4.5 Replacing the Serial Port Power Monitoring CableConnecting ADPD1 to BBU

Prerequisite

l Wear an ESD wrist strap.l Make sure that the new serial port power monitoring cable is of the same type as the

old monitoring serial port cable.

Context

Figure 4-3 shows the appearance of such a monitoring serial port cable.

Figure 4-3 Appearance of the Serial Port Cable for Power Monitoring

Steps

1. Confirm that the new serial port power monitoring cable is the same type as the oldmonitoring serial port cable.

Before replacing cables, ensure that the appearance and even the numbers of the newand old cables are the same.

2. Affix a label to the new cable.

Affix the same label as that of the old cable for new cable according to the terminaland wire sequence of the cable.

3. Connect end B of the new cable.

4-5



a. Remove a connector at end B of the old cable, and connect the line with the samewire sequence and color at end B of the new cable to the end where the connectoris removed.

b. Repeat the preceding step to remove end A of the old cable.

4. Take out the old cable.

a. Cut the cable strap.

b. Take out the old cable.

5. Route the new cable.

a. Route the new cable by completely following the routing direction and cablesequence of the old cable. When routing the cable, follow the techniqueinstructions on bundling the Ethernet cable.

b. Connect end A and end B of the new cable and fasten them.

6. Verify the replacement of the cable.

Check whether the board related to the replaced cable is working normally and whetherrelated alarm is generated in the alarm management system.

7. After replacement, clean up the field.

Properly handle the replaced old cable, and clean up the field.


4.6 Replacing the Cable Connecting the BBU to theRSU

Prerequisite

l Wear an ESD wrist strap.l Make sure that the new interconnected cable and the old interconnected cable are of

the same type and length.

Context

Figure 4-4 shows the appearance of the cable.

4-6



Figure 4-4 Interconnection Cable

Steps1. Remove the connector of the old cable from the BBU.

2. Remove the connector of the old cable from the RSU.

3. Connect the BBU to the RSU with the new cable.

4. Lay the new cable according to the cabling mode of the old cable and bind the cablewith ties.

5. After the replacement, properly handle the replaced cable, and clean the field.


4.7 Replacing Optical Fibers Between BBU and RSUContextPay attention to the following points when replacing optical fibers:

l Do not damage the optical fiber cladding during operations.l Protect optical fiber connectors and avoid contaminating them.l Do not forcibly pull out the original optical fiber or forcibly bundle the new optical fiber.l Curve the new optical fiber at the turning.

Steps1. Check the type of the new optical fiber.

Before replacement, make sure that the new optical fiber and the old optical fiber areof the same type.

4-7



2. Affix a temporary label to the new optical fiber.

Affix temporary labels to both ends of the new optical fiber to set up a mapping. Ifmore than one optical fiber needs to be replaced, use different labels to differentiateoptical fibers.

3. Route the new optical fiber.

The routing position and cabling method of the new optical fiber need to be same asthose of the old optical fiber.

4. Remove the connector at one end of the old optical fiber and insert the connector ofthe new optical fiber.

Caution!l Put the anti-dust cap onto the optical interface after the connector on the one end

of the old optical fiber is removed to avoid contamination.l Insert the connector of the new optical fiber tightly.

5. Remove the connector at the other end of the old optical fiber and insert the connectorof the new optical fiber.

According to the number of the old optical fiber, find the connector at the other end ofthe old optical fiber and remove the connector. Then, according to the temporary labelfor the new optical fiber, find the connector at the other end of the new optical fiberand insert the connector.

Caution!l Put the anti-dust cap onto the optical interface after the connector on the one end

of the old optical fiber is removed to avoid contamination.l Insert the connector of the new optical fiber tightly.

6. Verify the replacement of the optical fiber.

Check whether the board related to the replaced optical fiber is working normally andwhether the related alarm is generated in the alarm management system.

7. Bundle the new optical fiber.

Cut the cable strap and pull the old optical fiber out. Then, route the new optical fiber.When binding the optical fiber, follow the technique instructions on binding the opticalfiber.

8. Affix an engineering label to an optical fiber.Remove the temporary label for the optical fiber and affix an engineering label. Thecontents in the engineering label for the new optical fiber are the same as those forthe old optical fiber.

4-8



9. After replacement, clean up the field.Properly handle the replaced old optical fiber, and clean up the field.


4.8 Replacing the Dry Contact Cable ExternallyProvided by BBU

Prerequisite

l Wear an ESD wrist strap.l Make sure that the new dry contact cable is of the same type as the old dry contact

cable.

ContextFigure 4-5 shows the appearance of the dry contact cable externally provided by thebaseband module. In the figure, end A is a type-D connector and end B is a group ofwires.

Figure 4-5 Appearance of the Baseband Dry Contact Cable

Steps1. Confirm that the new cable and the old cable are of the same type.

Before replacing cables, ensure that the appearances and even the numbers of thenew and old cables are the same.

2. Affix a label to the new cable.

Affix the same label as that of the old cable for new cable according to the terminaland wire sequence of the cable.

3. Connect end B of the new cable.

a. Remove a connector at end B of the old cable, and connect the line with the samewire sequence and color at end B of the new cable to the end where the connectoris removed.

b. Repeat the preceding step again and again until all the connectors of the newcables are connected.

4. Take out the old cable.

4-9



a. Cut the cable strap.

b. Remove the connector at end A of the old cable.

c. Take out the old cable.

5. Route the new cable.

a. Lay the new cable by completely following the routing direction and cablesequence of the old cable. When laying the cable, follow the techniqueinstructions on bundling the Ethernet cable.

b. Connect end A of the new cable and fasten it.


Check whether the board related to the replaced cable is working normally and whetherrelated alarm is generated in the alarm management system.


Properly handle the replaced old cable, and clean up the field.


4.9 Replacing the Cable Connecting BBU to LPUPrerequisite

l Wear an ESD wrist strap.l Make sure that the type of the new cable is the same as that of the old cable, and their

lengths are the same.

Context

Figure 4-6 shows the appearance of the cable connecting BBU and LPU.

Figure 4-6 Appearance of the Cable Connecting the BBU to LPU

4-10



Steps1. Remove end B2 of the old cable that connects the ground terminal of the cabinet.

2. Remove end A of the old cable that connects to the SA board.

3. Remove end B1 of the old cable that connects to LPU.

4. Connect end B1 of the new cable to the BBU interface of LPU.

5. Connect end A of the new cable to the monitoring/Abis interface of the SA board.

6. Connect end B2 of the new cable to the ground terminal of the cabinet.


4.10 Replacing the Ethernet Cable on BBUPrerequisite

l Wear an ESD wrist strap.l Make sure that the new Ethernet cable is of the same type as the old Ethernet cable.

ContextEthernet cables are important cables for equipment communication. If an Ethernet cableis faulty, replace it immediately. Otherwise, the system will be adversely affected to a largeextent.

The Ethernet cable on the baseband module is led out from the CC board of the basebandmodule and connects to the FE interface on the lightning arrester.

Steps1. Make sure that the new Ethernet cable and the old Ethernet cable are of the same

type.

Ethernet cables are classified into straight-through cables and crossover cables. Thewire sequences at the two ends of a straight-through cable are the same but those ofa crossover cable are different. To be specific, wires 1 and 3 at end A are connectedto wires 3 and 1 at end B respectively, and so are wires 2 and 4 at end A.

2. Remove the faulty cable.

Pinch the connector and remove the Ethernet cable.

3. Route and bundle the new Ethernet cable.

Cut the cable strap and pull the old Ethernet cable out. Then, route the new cable.When binding the cable, follow the technique instructions on binding the Ethernetcable.

4. Install the Ethernet cable, and insert the connector into the network port according tothe shape of the connector.

5. Verify the replacement of the Ethernet cable.

4-11



Check whether the board related to the replaced Ethernet cable works normally andwhether related alarm is generated in the alarm management system.

6. Affix an engineering label to the Ethernet cable.

An engineering label is affixed to the new Ethernet cable. The contents in theengineering label for the new Ethernet cable are the same as those for the old cable.


Properly handle the replaced old Ethernet cable, and clean up the field.


4.11 Replacing the RF Cable Between the GPSLightning Arrester and the CC Board of BBU

Prerequisite

l Wear an ESD wrist strap.l Make sure that the new RF cable and the old RF cable are of the same type, BOM,

and length.

ContextThe GPS RF jumper, if it is faulty, greatly affects the system clock. Therefore, replace thefaulty GPS RF jumper immediately.

Figure 4-7 shows the appearance of the GPS RF jumper.

Figure 4-7 Appearance of the GPS RF Jumper

Steps1. Check the type of the new GPS RF jumper.

Make sure that the new RF jumper and the old RF jumper are of the same type, BOM,and length.

2. Remove the faulty RF jumper.

3. Route and bundle the new RF jumper.

Cut the jumper strap and pull the old RF jumper out. Then, route the new RF jumperWhen bundling the RF jumper, follow the technique instructions on bundling theinterconnecting cable.

4-12



4. Install the RF jumper.

Connect the connectors at both ends of the RF jumper properly and tightly.

5. Verify the replacement of the RF jumper.

The clock alarm on the OMC is cleared.

6. Affix an engineering label to the RF jumper.

Make sure that the content of the label for the new RF jumper is the same as that forthe old RF jumper.


Properly handle the replaced old RF jumper, and clean up the field.


4.12 Replacing the Door Status Monitoring Cable ofthe Battery Cabinet

Prerequisite

l Wear an ESD wrist strap.l Make sure that the new door status monitoring cable and the old door status

monitoring cable are of the same type.

Context

Figure 4-8 shows the appearance of the door status monitoring cable.

Figure 4-8 Appearance of the Door Status Monitoring Cable

Steps

1. Remove end B of the old cable that connects to the baseband monitoring transfercable.

2. Remove end B of the old cable that connects to the door status magnetic block of thebattery box.

3. Cut the strap and remove the old cable.

4-13



4. Lay the new cable by completely following the routing direction and cable sequenceof the old cable. When laying the cable, follow the technique instructions on bindingthe Ethernet cable.

5. Connect end A and B of the new cable.

6. Properly handle the replaced old cable, and clean up the field.


4.13 Replacing the Battery Temperature MonitoringCable

Prerequisite

l Wear an ESD wrist strap.l Make sure that the new battery temperature monitoring cable and the old battery

temperature monitoring are of the same type.

Context

Figure 4-9 shows the appearance of the battery temperature monitoring cable.

Figure 4-9 Appearance of the Battery Temperature Monitoring Cable

Steps




4. Connect end A and B of the new cable.



4-14



4.14 Replacing the Battery Flooding Monitoring CablePrerequisite

l Wear an ESD wrist strap.l Make sure that the new battery flooding monitoring cable and the old battery smoke

monitoring cable are of the same type.

Context

Figure 4-10 shows the appearance of the battery flooding monitoring cable.

Figure 4-10 Appearance of the Battery Flooding Monitoring Cable

Steps




4. Connect end A and end B of the new cable.



4.15 Replacing the E1/T1 Cable on LPUPrerequisite

l Wear an ESD wrist strap.l Make sure that the new E1/T1 cable and the old E1/T1 cable are of the same type.

Context

In general, if the trunk cable (such as E1/T1 cable) is faulty, replace it immediately.Otherwise, the system will be adversely affected to a large extent.

4-15



Steps1. Determine the type of the new E1/T1 cable.

The E1 coaxial cable or the E1/T1 twisted pair can be used as the trunk cable. Beforereplacement, make sure that the new E1/T1 cable and the old E1/T1 cable are of thesame type.

2. Remove the faulty cable.

Use a flathead screwdriver to unscrew the screws that secure the cable connector andthe interface. Then, remove the cable connector.

3. Route and bundle the new cable.

Cut the cable strap and pull the original cable out. Then, route the new cable. Whenbundling the cable, follow the technique instructions on bundling the trunk cable.

4. Install the new cable.


Check whether the board related to the replaced interconnecting cable works normallyand whether related alarm is generated in the alarm management system.

6. Affix an engineering label to the new cable.

The content of the label for the new cable is the same as that for the old cable.


Properly handle the replaced original interconnecting cable, and clean up the field.


4.16 Replacing the DC Power Cable of the RF CabinetPrerequisite

l Wear an ESD wrist strap.l Make sure that the new power cable and the old power cable are of the same type

and length.

ContextTwo 16 mm2 conductive cables are used between the baseband power cabinet and theRF cabinet. The ends (end A and end B with a length of 12 mm outwards) of the positivewires wear red heat shrinkage bushes and the ends of the negative wires wear blue heatshrinkage bushes.

Steps1. Set all power switches of the power distribution subrack to the OFF position.

2. Remove the connector of the old cable that connects to the power shielding box of theRF cabinet.

4-16



3. Remove the connector of the old cable that connects to the B121 power output cableof the baseband power cabinet.

4. Cut the strap of the old cable to remove the old cable.

5. Connect end A and end B to proper positions according to the colors of the heatshrinkage bushes of the new cable.

6. Lay the new cable according to the cabling direction of the old cable and bind the cablewith ties.



4-17




4-18


Appendix ACleaning Dust Filter MeshesThis appendix describes how to clean the dust filter meshes of the BC8910 and RC8910cabinets of the ZXSDR BS8900A C100.

Table of Contents

� Cleaning the BC8910 Dust Filter Mesh ................................................................... A-1

� Cleaning the RC8910 Dust Filter Mesh................................................................... A-3

A.1 Cleaning the BC8910 Dust Filter MeshThis section describes how to clean the dust filter mesh of the BC8910 cabinet.

Context

The dust filter mesh of BC8910 is in the air inlets at the bottom of the cabinet and has beeninstalled in the factory.

There are two spring cotters in the left and right sides at the bottom of the dust filter mesh.

Steps

1. Push down the inner spring cotter in the left and right sides at the bottom to removethe dust filter mesh, see Figure A-1.

A-1



Figure A-1 Removing the Dust Filter Mesh

2. Clean the dust filter mesh with water or brush, see Figure A-2.

Figure A-2 Cleaning the Dust Filter Mesh

3. Install the cleaned dust filter mesh to the rack base. The spring cotters will be lockedautomatically to prevent the dust filter mesh dropping, see Figure A-3.

A-2


Appendix A Cleaning Dust Filter Meshes

Figure A-3 Installing the Dust Filter Mesh


A.2 Cleaning the RC8910 Dust Filter MeshThis section describes how to clean the dust filter mesh of the RC8910 cabinet.

Context

The dust filter mesh of the RC8910 cabinet is installed on the rack base. It is dispatchedwith the equipment and installed on site.

Note:

The operations to clean the dust filter mesh of the PC8910 and RC8911 cabinets are thesame as those of RC8910.

A-3



Steps

1. Remove six anti-theft screws on the front panel of the base to remove the front panelby using anti-theft screw spanner, see Figure A-4.

Figure A-4 Removing the Front Pane

2. Remove the dust filter mesh, see Figure A-5.

Figure A-5 Removing the Dust Filter Mesh

3. Clean the dust filter mesh with water or brush, see Figure A-6.

A-4


Appendix A Cleaning Dust Filter Meshes

Figure A-6 Cleaning the Dust Filter Mesh

4. Install the cleaned dust filter mesh to the rack base and fix the front panel, see FigureA-7 and Figure A-8.

Figure A-7 Installing the Dust Filter Mesh

A-5



Figure A-8 Fixing the Front Panel


A-6


Appendix BMaintenance Record TablesTable of Contents

� Daily Maintenance Record Table ............................................................................ B-1

� Monthly Maintenance Record Table ........................................................................ B-2

� Quarterly Maintenance Record Table...................................................................... B-3

� Half-yearly Maintenance Record Table ................................................................... B-4

� Annual Maintenance Record Table ......................................................................... B-5

� Sudden Fault Handling Record Table...................................................................... B-5

� Module Replacement Record Table ........................................................................ B-6

� Cable Replacement Record Table .......................................................................... B-7

B.1 Daily Maintenance Record TableA daily maintenance record is required during daily maintenance of the ZXSDR BS8900AC100. Table B-1 gives a daily maintenance record table for reference.

Table B-1 Daily Maintenance Record Table

Date:

Attended time: From To Handed over by: Taken over by:

Active alarms records

BTS No. Alarm description Time when

the alarm

occurs

Time when

the alarm is

cleared

Remarks

History alarms handling records

BTS No. History alarm description and handling Remarks

History notifications handling records

B-1



Date:

Attended time: From To Handed over by: Taken over by:

BTS No. History notification description and handling Remarks

User complaints handling records

BTS No. User complaint description and handling Remarks

Shift record:

Review (performed by the person in charge of the shift):

B.2 Monthly Maintenance Record TableA record is required during monthly maintenance of the ZXSDR BS8900A C100. TableB-2 gives a monthly maintenance record table for reference.

Table B-2 Monthly Maintenance Record Table

Maintenance time: Maintenance personnel:

Check item Description Handling method Remarks

Check whether the BTS

location parameter is

the same as the actual

one.

Check whether the

equipment is clean.

Check whether the

cable tray is reliably

fixed.

B-2


Appendix B Maintenance Record Tables


Check item Description Handling method Remarks

Check whether the E1,

T1 and fiber are in good

condition and whether

all connectors are in

good contact.

Check whether all

indicators are in normal

status.

Spare materials and

parts

Are spare materials

and parts complete and

undamaged?

□Yes □No

Review (performed by the person in charge):

B.3 Quarterly Maintenance Record TableA record is required during quarterly maintenance of the ZXSDR BS8900A C100. TableB-3 gives a quarterly maintenance record table for reference.

Table B-3 Quarterly Maintenance Record Table

ZXSDR BS8900A C100 name: Maintenance date:

Maintenance personnel:

Item Description Remarks

ZXSDR BS8900A C100 module

operation

□Normal □Abnormal

Data service □Normal □Abnormal

Power operation □Normal □Abnormal

Grounding/lightning system □Normal □Abnormal

B-3



ZXSDR BS8900A C100 name: Maintenance date:


Item Description Remarks

Grounding resistance and

grounding cable


Waterproof measure and

grounding connection of the

feeder connector and lightning

grounding kit


Failure description and handling

Unsolved problems

Review (performed by the

person in charge)

B.4 Half-yearly Maintenance Record TableA record is required during half-yearly maintenance of the ZXSDR BS8900A C100. TableB-4 gives a half-yearly maintenance record table for reference.

Table B-4 Half-yearly Maintenance Record Table


Check item Result Remarks

Is the equipment working ground

reliably connected?

□Yes □No

Is the room protection grounding bar

reliably connected?

□Yes □No

Is the BTS grounding trunk cable

reliably connected?

□Yes □No

Grounding resistance test Grounding resistance:

B-4



B.5 Annual Maintenance Record TableTable B-5 gives an annual maintenance record table for reference.

Table B-5 Annual Maintenance Record Table

Equipment name: Maintenance date:


Item Status Remarks

Cleanness of the cabinet □Normal□Abnormal

Humidity/temperature □Normal□Abnormal

Module operation status □Normal□Abnormal

Voice service and data service □Normal□Abnormal

Operation status of power supply □Normal□Abnormal

Grounding/lightning system □Normal□Abnormal

Antenna feeder standing wave ratio □Normal□Abnormal

Grounding resistance and grounding cable □Normal□Abnormal

Waterproof measure and grounding connec-

tion of the antenna feeder connector and

lightning grounding kit

□Normal□Abnormal

Antenna fixation, and evaluation and direc-

tional angle of the directional antenna

□Normal□Abnormal

Lightning □Normal□Abnormal

Fault description and handling

Unsolved Problems

Review (performed by the person in charge)

B.6 Sudden Fault Handling Record TableA record is required during sudden fault handling for the ZXSDR BS8900A C100. TableB-6 gives a sudden fault handling record table for reference.

B-5



Table B-6 Sudden Fault Processing Record Table

Sudden Fault Handling Record Table

Office: Handled by:

Fault occurrence time: Fault removal time:

Source from which the fault is found: □ User complaint □ Alarm system □ Routine maintenance □

Others

Fault category:

Fault description:

Fault handling:

Result:

Opinion of the person in charge:

B.7 Module Replacement Record TableA record is required during module or board replacement to facilitate fault tracing. TableB-7 gives a module replacement record table for reference.

B-6



Table B-7 Module Replacement Record Table

Module Replacement Record Table

BTS No.: Maintenance personnel:

Module Slot Faultoccurrencetime

Replace-ment time

Faulty moduleserial No.

Substitutemodule serialNo.

B.8 Cable Replacement Record TableA record is required during ZXSDR BS8900A C100 cable replacement. Table B-8 gives acable replacement record table for reference.

Table B-8 Cable Replacement Record Table

Cable Replacement Record Table


Cable Connectingposition

Fault time Replace-ment time

Faulty cableserial No.

Substitute cableserial No.

B-7



Cable Replacement Record Table


Cable Connectingposition

Fault time Replace-ment time

Faulty cableserial No.

Substitute cableserial No.

B-8


FiguresFigure 4-1 Appearance of the Grounding Cable ........................................................ 4-3

Figure 4-2 Appearance of the Power Cable .............................................................. 4-4

Figure 4-3 Appearance of the Serial Port Cable for Power Monitoring....................... 4-5

Figure 4-4 Interconnection Cable .............................................................................. 4-7

Figure 4-5 Appearance of the Baseband Dry Contact Cable ..................................... 4-9

Figure 4-6 Appearance of the Cable Connecting the BBU to LPU........................... 4-10

Figure 4-7 Appearance of the GPS RF Jumper....................................................... 4-12

Figure 4-8 Appearance of the Door Status Monitoring Cable................................... 4-13

Figure 4-9 Appearance of the Battery Temperature Monitoring Cable ..................... 4-14

Figure 4-10 Appearance of the Battery Flooding Monitoring Cable.......................... 4-15

Figure A-1 Removing the Dust Filter Mesh................................................................A-2

Figure A-2 Cleaning the Dust Filter Mesh..................................................................A-2

Figure A-3 Installing the Dust Filter Mesh..................................................................A-3

Figure A-4 Removing the Front Pane........................................................................A-4

Figure A-5 Removing the Dust Filter Mesh................................................................A-4

Figure A-6 Cleaning the Dust Filter Mesh..................................................................A-5

Figure A-7 Installing the Dust Filter Mesh..................................................................A-5

Figure A-8 Fixing the Front Panel .............................................................................A-6

I

Figures


TablesTable 1-1 Maintenance Information Collection Table ................................................. 1-4

Table 1-2 ZXSDR BS8900A C100 Version Information.............................................. 1-5

Table 2-1 Daily Maintenance Guide........................................................................... 2-3

Table 2-2 Monthly Maintenance Guide ...................................................................... 2-5

Table 2-3 Quarterly Maintenance Guide.................................................................... 2-8

Table 2-4 Half-yearly Maintenance Guide.................................................................. 2-9

Table 2-5 Annual Maintenance Guide ..................................................................... 2-10

Table 4-1 Color Definition of Input Power Cables for the Baseband PowerCabinet .................................................................................................... 4-1

Table 4-2 Connections of the Power Cable ............................................................... 4-4

Table B-1 Daily Maintenance Record Table...............................................................B-1

Table B-2 Monthly Maintenance Record Table ..........................................................B-2

Table B-3 Quarterly Maintenance Record Table ........................................................B-3

Table B-4 Half-yearly Maintenance Record Table......................................................B-4

Table B-5 Annual Maintenance Record Table............................................................B-5

Table B-6 Sudden Fault Processing Record Table.....................................................B-6

Table B-7 Module Replacement Record Table...........................................................B-7

Table B-8 Cable Replacement Record Table.............................................................B-7

III

Tables


GlossaryCC- Control and Clock Module

CH- Channel Processing Module

CVI- Channel Processing Voice Interface Module

FA- Fan Array

FS- Fabric Switch Module

OMC- Operation & Maintenance Center

PM- Power Module

RSU- RF System Unit

RTR- RRU Transceiver

SA- Site Alarm

USR- Universal Satellite Receiver

V

SJ-20110323100313-007-ZXSDR BS8900A C100(V2.5)Routine Maintenance Guide

Documents

Transcript of SJ-20110323100313-007-ZXSDR BS8900A C100(V2.5)Routine Maintenance Guide