msag 5200 routine maint

ZXMSG 5200Multiplex Service GatewayRoutine Maintenance

Version 3.1

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]

LEGAL INFORMATION

Copyright © 2010 ZTE CORPORATION.

The contents of this document are protected by copyright laws and international treaties. Any reproduction or distribution ofthis document or any portion of this document, in any form by any means, without the prior written consent of ZTE CORPO-RATION is prohibited. Additionally, the contents of this document are protected by contractual confidentiality obligations.

All company, brand and product names are trade or service marks, or registered trade or service marks, of ZTE CORPORATIONor of their respective owners.

This document is provided “as is”, and all express, implied, or statutory warranties, representations or conditions are dis-claimed, including without limitation any implied warranty of merchantability, fitness for a particular purpose, title or non-in-fringement. ZTE CORPORATION and its licensors shall not be liable for damages resulting from the use of or reliance on theinformation contained herein.

ZTE CORPORATION or its licensors may have current or pending intellectual property rights or applications covering the subjectmatter of this document. Except as expressly provided in any written license between ZTE CORPORATION and its licensee,the user of this document shall not acquire any license to the subject matter herein.

ZTE CORPORATION reserves the right to upgrade or make technical change to this product without further notice.

Users may visit ZTE technical support website http://ensupport.zte.com.cn to inquire related information.

The ultimate right to interpret this product resides in ZTE CORPORATION.

Revision History

Revision No. Revision Date Revision Reason

1.0 31/10/2009 First Edition

1.1 10/07/2010 Updated Edition (V3.1 P01)

Serial Number: sjzl20096165

Contents

About This Manual............................................. I

Declaration of RoHS Compliance ....................... I

Safety Descriptions ...........................................1Safety Instructions ......................................................... 1

Safety Signs .................................................................. 1

Maintenance Overview ......................................3Common Maintenance Methods ........................................ 3

Routine Maintenance Precautions ..................................... 5

Daily Maintenance .............................................7Daily Maintenance Items ................................................. 7

Power Voltage Check....................................................... 8

Equipment Room Temperature Check ................................ 8

Equipment Room Humidity Check ..................................... 8

Air Conditioner Operational Status Check........................... 9

Dust-Proof Measures Check ............................................. 9

Fan Running Status Check ..............................................10

Card LED Status Check...................................................10

Querying Current Alarms ................................................11

Weekly Maintenance .......................................13Weekly Maintenance Items .............................................13

Cable Distribution Module Check......................................13

Equipment Room Environment Check ...............................14

Monthly Maintenance ......................................15Monthly Maintenance Items ............................................15

Cabinet Cleaning ...........................................................15

Power and Ground Cables Check .....................................16

Quarterly Maintenance ....................................17Quarterly Maintenance Items ..........................................17

GIS Changeover Test .....................................................17

Maintaining Storage Battery............................................18

Confidential and Proprietary Information of ZTE CORPORATION I

ZXMSG 5200 Routine Maintenance

Ground Resistance Testing..............................................18

Reference Charts for Maintenance...................19System Networking Diagram...........................................19

System Resource Allocation Table ....................................20

Common Maintenance Tables ..........................23Common Maintenance Tables ..........................................23

Board Replacement .........................................25Overview......................................................................25

GIS Card Replacement ...................................................25

Power Card Replacement ...............................................26

Other Card Replacement.................................................27

Tables .............................................................29

Index ..............................................................31

Glossary ..........................................................33

II Confidential and Proprietary Information of ZTE CORPORATION

About This Manual

Purpose At first, thank you for choosing ZXMSG 5200 Multiplex ServiceGateway of ZTE Corporation!

ZXMSG 5200 Multiplex Service Gateway is an access device in theNGN system. It communicates with the SS through the H.248,SIP, or MGCP protocol. The ZXMSG 5200 equipment consists of thecontrol switching card, media resource card, test card, power card,and subscriber cards, integrating the narrowband and broadbandaccess. The SS provides the call service and the Internet providesthe broadband service.

This manual provides procedures and guidelines that support themaintenance of ZXMSG 5200 Multiplex Service Gateway.

IntendedAudience

This document is intended for the engineers and technicians whoperform installation, operation and maintenance activities onZXMSG 5200 Multiplex Service Gateway.

Prerequisite Skilland Knowledge

To use this document effectively, users should have a general un-derstanding of the network technology. Familiarity with the fol-lowing is helpful:

The ZXMSG 5200 system and its various components

Maintenance procedures

Local operating procedures

What Is in ThisManual

This manual contains the following chapters:

Chapter Summary

Chapter 1, SafetyDescriptions Describes safety signs and instructions.

Chapter 2, MaintenanceOverview

Describes maintenance classifications,common maintenance methods, anddaily maintenance precautions.

Chapter 3, DailyMaintenance Describes daily maintenance methods.

Chapter 4, WeeklyMaintenance Describes weekly maintenance methods.

Chapter 5, MonthlyMaintenance

Describes monthly maintenancemethods.

Chapter 6, QuarterlyMaintenance

Describes quarterly maintenancemethods.

Chapter 7, ReferenceCharts for Maintenance

Describes system networking diagramand system resource allocation table.

Appendix A, CommonMaintenance Tables

Describes daily maintenance table,weekly maintenance table, monthlymaintenance table, and quarterlymaintenance table.



Chapter Summary

Appendix B, BoardReplacement

Describes control card replacement,power card replacement, and other cardreplacements.

RelatedDocumentation

The following documentation is related to this manual:

ZXMSG 5200 (V3.1) Multiplex Service Gateway DocumentationGuide

ZXMSG 5200 (V3.1) Multiplex Service Gateway Feature De-scription

ZXMSG 5200 (V3.1) Multiplex Service Gateway Hardware De-scription

ZXMSG 5200 (V3.1) Multiplex Service Gateway Hardware In-stallation Manual (19D06H20)

ZXMSG 5200 (V3.1) Multiplex Service Gateway Hardware In-stallation Manual (OUT60)

ZXMSG 5200 (V3.1) Multiplex Service Gateway Hardware In-stallation Manual (OUT40F)

ZXMSG 5200 (V3.1) Multiplex Service Gateway Product Infor-mation

ZXMSG 5200 (V3.1) Multiplex Service Gateway CommandManual(Volume I)

ZXMSG 5200 (V3.1) Multiplex Service Gateway CommandManual(Volume II)

ZXMSG 5200 (V3.1) Multiplex Service Gateway CommandManual(Volume III)

ZXMSG 5200 (V3.1) Multiplex Service Gateway CommandManual(Volume IV)

ZXMSG 5200 (V3.1) Multiplex Service Gateway CommandManual(Volume V)

ZXMSG 5200 (V3.1) Multiplex Service Gateway ConfigurationManual(CLI)

ZXMSG 5200 (V3.1) Multiplex Service Gateway ConfigurationManual(NetNumen)

ZXMSG 5200 (V3.1) Multiplex Service Gateway Troubleshoot-ing Manual

Conventions ZTE documents employ the following typographical conventions.

Typeface Meaning

Italics References to other Manuals and documents.

“Quotes” Links on screens.

Bold Menus, menu options, function names, input fields,radio button names, check boxes, drop-down lists,dialog box names, window names.


About This Manual

Typeface Meaning

CAPS Keys on the keyboard and buttons on screens andcompany name.

Note: Provides additional information about a certaintopic.

Checkpoint: Indicates that a particular step needs tobe checked before proceeding further.

Tip: Indicates a suggestion or hint to make thingseasier or more productive for the reader.

Mouse operation conventions are listed as follows:

Typeface Meaning

Click Refers to clicking the primary mouse button (usually theleft mouse button) once.

Double-click

Refers to quickly clicking the primary mouse button(usually the left mouse button) twice.

Right-click Refers to clicking the secondary mouse button (usuallythe right mouse button) once.

Confidential and Proprietary Information of ZTE CORPORATION III


This page is intentionally blank.

IV Confidential and Proprietary Information of ZTE CORPORATION

Declaration of RoHSCompliance

Tominimize the environmental impact and take more responsibilityto the earth we live, this document shall serve as formal declara-tion that ZXMSG 5200 manufactured by ZTE CORPORATION are incompliance with the Directive 2002/95/EC of the European Parlia-ment - RoHS (Restriction of Hazardous Substances) with respectto the following substances:

Lead (Pb)

Mercury (Hg)

Cadmium (Cd)

Hexavalent Chromium (Cr (VI))

PolyBrominated Biphenyls (PBB’s)

PolyBrominated Diphenyl Ethers (PBDE’s)

…

The ZXMSG 5200 manufactured by ZTE CORPORATION meetthe requirements of EU 2002/95/EC; however, some assembliesare customized to client specifications. Addition of specialized,customer-specified materials or processes which do not meet therequirements of EU 2002/95/EC may negate RoHS compliance of theassembly. To guarantee compliance of the assembly, the need forcompliant product must be communicated to ZTE CORPORATION inwritten form. This declaration is issued based on our current levelof knowledge. Since conditions of use are outside our control, ZTECORPORATION makes no warranties, express or implied, and assumesno liability in connection with the use of this information.


C h a p t e r 1

Safety Descriptions

Table of ContentsSafety Instructions ............................................................. 1Safety Signs ...................................................................... 1

Safety InstructionsDuring the installation, operation and maintenance of the equip-ment, to avoid body injuries or equipment damages, all the safetyrules and related operation procedures on the site must be strictlyfollowed. The safety precautions in this manual can only be usedas a supplement to local safety regulations.

ZTE Corporation shall not bear any liability incurred by violationof the universal safety operation requirements, or violation ofthe safety standards for designing, manufacturing and using theequipment.

Safety SignsTable 1 lists the safety signs used in this manual. These signs re-mind users of the safety precautions to be observed in equipmentinstallation, operation and maintenance.

TABLE 1 SAFETY SIGNS AND MEANINGS

Safety Sign Meaning

Danger

Caution against static electricity

Caution against electroshock

Caution against scald

Caution against laser

Caution against microwave

Confidential and Proprietary Information of ZTE CORPORATION 1


The safety reminders are classified into four levels: Danger, Warn-ing, Caution and Note. The statement for safety level is on theright of the safety symbol, while the detailed description of thesafety contents is below the sign, as shown below.

Danger:

Indicates an imminently hazardous situation which, if not avoided,could result in death or serious injury.

Warning:

Indicates a potentially hazardous situation which, if not avoided,could result in death or serious injury.

Caution:

Indicates a potentially hazardous situation which, if not avoided,could result in minor or moderate injury.

Note:

A Note statement is used to notify people of installation, operation,or maintenance information that is important, but not hazard-re-lated.

Tip:

Indicates a suggestion or hint to make things easier or more pro-ductive for the reader.

2 Confidential and Proprietary Information of ZTE CORPORATION

C h a p t e r 2

Maintenance Overview

Table of ContentsCommon Maintenance Methods ............................................ 3Routine Maintenance Precautions ......................................... 5

Common MaintenanceMethodsRoutine maintenance involves the following methods:

Observation

Unplugging/plugging

Replacement

Self-loop

Step-by-step

Self-check

Cross-connection

Pressing

Alarm log analysis

Subscriber line test

Online test

Ping

Observation The observation is as follows:

Observe the status of indicator LEDs on the panel, such as theRUN and ALM LEDs.

Observe the status of alarm indicators on the alarm box.

Observe alarm messages on the NMS (maintenance console).

Note:

Correct judgment based on observation is the key for fault analysisand handling.



Unplugging/Plugging

For a circuit card fault, plug/unplug the circuit card and externalconnectors to clear the poor contact fault or processor abnormality.

Note:

Make sure that the card is hot-pluggable. Remember to wear anti-static wrist strap.

Replacement Replace the suspected card with a new one to judge whether thecard is faulty or not. If the plugging/unplugging method does notwork, replacement method can be used. For the precautions dur-ing plugging/unplugging or replacing a card, refer to Chapter 7,Card Replacement.

Self-loop When the system is partially faulty, isolate the faulty part fromthe related circuit cards or shelves to judge whether the fault isdue to mutual influence. For the card with both input and outputinterface, take the self-loop test on the input/output interface toisolate and remove the related problems.

Step-by-step Pull out all cards except the power card. First, insert the controlcard. After the control card works normally, insert the subscribercards in sequence. If the fault occurs again when one card is in-serted, it is sure that this card or the card slot causes the fault.Replace this card or backplane.

Self-check When the system or the circuit card is powered ON again, thesystem can verify the fault through self-test. In the power-ONself-test of a common card, the panel indicators flash regularly,which tells whether it has problem or not.

Cross-connection If it fails to locate a sub-node fault, cross connect lines with signalsof the same nature to determine the fault point and fault type. Forinstance, to judge whether 2M cable is faulty or not, use the normal2M cable to have a check.

Pressing Press chips, cable connectors, etc. to remove faults resulting frompoor contacts.

Alarm log analysis View the current alarm and history alarm messages shown on theNMS terminal. Judge whether the system runs normally and islocating the faults. The current alarm message disappears after afault is removed.

Subscriber linetest

Measure the parameters of subscriber internal line, external lineand terminal through the subscriber line test system, to judge sub-scriber status.

Online test Perform online test to trace the service flow, for judging and lo-cating the faults.

For the narrowband service, use a line tester and a signal an-alyzer to test the line status and signaling interaction flow.

For the broadband service, use a line tester to test the ADSLport and line.

Ping To locate the faults of the service network and the NMS network,ping the IP addresses of the nodes.


Chapter 2 Maintenance Overview

Routine MaintenancePrecautionsFollow some precautions during routine maintenance:

Keep the equipment room temperature and humidity normal.Keep the environment clean and clear. Protect the equipmentfrom dust and dampness. Prevent rodents from entering theequipment room.

Ensure stability and reliability of the primary power supplyof the system. Check the grounding and lightning protectionground of the system periodically. In particular, check the light-ning protection system before and after storm. Make sure it isin good condition.

Establish a complete set of maintenance regulations for theequipment room and standardize the routine maintenancework. An exhaustive duty log is available to provide detailsabout system operation, version, data change, upgrading andtroubleshooting on day-to-day basis for follow-up analysis andtroubleshooting in the event of a fault. Prepare a work-shiftrecord to specify the responsibility clearly.

Never play games on the computer terminals. Do not install,run or load any other software unrelated to the system on theterminals. Do not use the computer terminals for other pur-poses.

Set different NMS passwords for different access rights. Placethem under rigid management and make changes to them pe-riodically. In addition, keep the NMS passwords only accessibleto maintenance personnel.

To help the maintenance personnel get certain knowledgeabout the equipment and network, arrange trainings forthem before they take the post. During maintenance op-erations, they need follow the instructions described in therelevant ZXMSG 5200 manuals. To avoid any damage to theequipment, wear antistatic wrist straps before touching theequipment hardware.

Do not reset the equipment, load or change data casually, es-pecially, the data of the NMS database. Back up the data beforeany change. Do not delete the backup data until the equip-ment runs properly for some time (usually a week) after anydata modification. Take the record after any data change intime.

Prepare commonly used tools and meters. Check meters reg-ularly to ensure they work properly. Commonly used tools andmeters are as follows:

Straight screwdrivers and cross screwdrivers

Signal tester

Diagonal pliers

Network cable pliers

Multimeter



AC power supply for maintenance purpose

Extended power caber and sockets

Telephone line

Ethernet cable

Check the spare parts regularly. Ensure that they are in a suf-ficient inventory and good condition. Keep them away frommoisture and mould. Keep the spare parts separately awayfrom those damaged parts. Label the spare parts for distinc-tion.

Place the software packages and documents which might beused during maintenance in an easily accessible place.

Make sure that the illumination in the equipment room meetsthe maintenance requirements. Fix the damaged light as soonas possible.

Handle the fault promptly. If the maintenance personnel arefailed to solve the problem, contact the local office of ZTE Cor-poration immediately.

Ensure all maintenance personnel know the contact informa-tion of the local ZTE office. Thus, they can contact ZTE forsupport in time. Remember to update the contact periodically.


C h a p t e r 3

Daily Maintenance

Table of ContentsDaily Maintenance Items ..................................................... 7Power Voltage Check........................................................... 8Equipment Room Temperature Check .................................... 8Equipment Room Humidity Check ......................................... 8Air Conditioner Operational Status Check............................... 9Dust-Proof Measures Check ................................................. 9Fan Running Status Check ..................................................10Card LED Status Check.......................................................10Querying Current Alarms ....................................................11

Daily Maintenance ItemsTable 2 lists daily maintenance items.

TABLE 2 DAILY MAINTENANCE ITEMS

Category Item

Power voltage

Temperature in the equipment room

Humidity in the equipment room

Operational status of the air conditioner

Environment supervisionmaintenance check

Dust-proof measures

Fan running status

Card operation

Maintenance check onactive equipment runningstatus

Alarm information



Note:

Maintenance personnel can add other related maintenance itemsif necessary.

Power Voltage CheckMeter Multimeter

Procedure Measure the AC and DC voltages of the input power with a multi-meter and keep a record.

Result The AC voltage range is 200 V ~ 240 V and the DC voltage rangeis -57 V ~ -40 V.

Handling Check the input power in time if the test result is abnormal or theparameters are out of the range.

Equipment RoomTemperature Check

Meter Thermometer

Procedure Check the temperature reading on the thermometer equipped inthe equipment room every day and keep a record.

Result Temperature to guarantee performance: 5 °C – 40 °C

Temperature to guarantee operation: 0 °C – 45 °C

Handling It is suggested to install an air-conditioner in the equipment roomfor stable operation of the equipment. If the test result is abnormalor a parameter is out of range, adjust the temperature of the air-conditioner.

Equipment Room HumidityCheck

Meter Hygrometer

Procedure Check the humidity reading on the hygrometer equipped in theequipment room and keep a record.

Result Humidity to guarantee performance: 20% ~ 80%

Humidity to guarantee operation: 10 % ~ 90 %


Chapter 3 Daily Maintenance

Handling It is recommended to install a humidity regulator in the placewhere the humidity is above the requirement. The damping-proofequipment is recommended in the southern area where the hu-midity is high, and antistatic floor is recommended in the northernarea where the humidity is low.

Air Conditioner OperationalStatus Check

Procedure If the ZXMSG 5200 is installed in an attended equipment room, themaintenance personnel need check the operation status of the air-conditioner (or other temperature/humidity regulation equipment)every day. In case of any fault, contact the maintenance personneland handle the problem in time. If the ZXMSG 5200 is installedin an unattended equipment room or outdoors, the maintenancepersonnel need check the running status of the air-conditioner atleast once a month and keep a record.

Result The ZXMSG 5200 works properly at the preset temperature (hu-midity).

Handling If the air-conditioner is faulty, contact the related maintenancepersonnel in time for repair.

Dust-Proof Measures CheckProcedure Observe dust concentration in the equipment room.

Result The concentration of dust particles with diameter over 5 µm ≤ 3 ×104 particles/m3. The dust particles are non-conductive, non-mag-netic and non-corrosive. Since it is hard to measure the concen-tration of dust particles, the maintenance personnel can only ob-serve with their naked eyes. If the ZXMSG 5200 is installed inthe attended equipment room, the maintenance personnel needmake sure the dust-proof measures are under way every day. Ifthe ZXMSG 5200 is installed in the unattended equipment or out-doors, the maintenance personnel need check the dust deposit andperform dust-proof measures once a month to ensure that dust iscleaned up timely.

Handling It is recommended that the door and windows of the equipmentroom be installed with dust-proof seals. Sealed double-layer glasswindows are recommended. Those who enter the equipment roomshould wear frocks and change shoes so as not to bring dust. Inaddition, keep the equipment room far from intense electromag-netic field and free from any strongly corrosive materials to avoidany harmful dust.



Fan Running Status CheckProcedure If the ZXMSG 5200is installed in an attended equipment room,

the maintenance personnel need check the running status of thefans every day. If it is installed in an unattended equipment roomor outdoors, the maintenance personnel need check the runningstatus of the fans at least once a month, and keep a record.

Result Fans are in normal running.

Handling If the fan is faulty, check whether the power cable to the fan tray isconnected properly. Or, replace the fan tray. If the fault persists,contact the maintenance personnel for troubleshooting.

Card LED Status CheckProcedure If the ZXMSG 5200is installed in an attended equipment room, the

maintenance personnel need check the LEDs on the cards regu-larly. If an alarm indicator is ON, contact the technical personneltimely for troubleshooting.

Result Below is a reference for the normal status of each card indicatorof the ZXMSG 5200.

POWER H card

In normal running, the -48V, +5V, +5VJ and -5V indicators areON.

The RING indicator flashes.

GIS card

In normal running, the RUN indicator flashes.

MPRB card

In normal running, the RUN indicator flashes.

The DSP1/DSP2 indicator flashes.

ALC card

In normal running, the RUN indicator is ON.

When any subscriber connected to this card hooks-off, theHOOK indicator is ON.

GADLC/GAGLC card

In normal running, the RUN indicator flashes. If one ADSLindicator is ON, it indicates that its corresponding link is estab-lished successfully.

TSLC card

In normal running, the RUN indicator is ON.

The ALM indicator is OFF.

During the test, the TEST indicator is ON.


Chapter 3 Daily Maintenance

Handling If the indicator is in abnormal status, judge the cause. If thefault still exists, contact the technical personnel in time for trou-bleshooting.

Querying Current AlarmsProcedure On the NMS terminal, click Alarm Management > Current

Alarm Management to view all the alarms of the current NE.

Result No alarms.

Handling Take a detailed record on the alarm information. Contact the tech-nical personnel in time for troubleshooting.


C h a p t e r 4

Weekly Maintenance

Table of ContentsWeekly Maintenance Items .................................................13Cable Distribution Module Check..........................................13Equipment Room Environment Check ...................................14

Weekly Maintenance ItemsTable 3 lists the weekly maintenance items.

TABLE 3 WEEKLY MAINTENANCE ITEMS

Category Item

Running status of auxiliaryequipment

Cable distribution module

Equipment room Equipment room environment

Note:

The user can add other maintenance items as required.

Cable Distribution ModuleCheck

Procedure Check the cable distribution module.

Result The cable distribution module is clean. Cables are in orderly ar-rangement and they are grounded properly.

Handling If the cable distribution module is faulty, contact the maintenancepersonnel for troubleshooting.



Equipment RoomEnvironment Check

Procedure Check whether the equipment room environment meets the re-quirements (this item is for indoor devices such as ZXA10-ONUB-IN/1500).

Result Critical passages of the equipment room are smooth and arenot installed together with water or gas pipelines. Three kindsof lighting facilities (for common use, for assurance and foremergency) are in good condition. Fire control equipment isavailable. The floor is paved as required without any damage.The supports are well grounded.

The holes between rooms and the outlets, and the gaps alongthe cable channel are well sealed. The sealing material is freeof deformation or break. The cable trough is moisture-proofand the cable protection layer is free of mil dew.

Handling If the equipment room does not meet the specified requirement,contact the relevant department.


C h a p t e r 5

Monthly Maintenance

Table of ContentsMonthly Maintenance Items ................................................15Cabinet Cleaning ...............................................................15Power and Ground Cables Check .........................................16

Monthly Maintenance ItemsTable 4 presents the monthly maintenance items of the ZXMSG5200.

TABLE 4 MONTHLY MAINTENANCE ITEMS

Category Item

CabinetHardware check

Power cables and ground wires

Note:


Cabinet CleaningProcedure Observe the inside and outside surface of the cabinet.

Result The cabinet is clean without dust, stains and foreign matter.

Handling Clean the surface of the cabinet with absolute alcohol. Be cautiousnot to pollute the cards or components inside. Disassemble thedust-proof nets at the bottom and side of the cabinet. Wash themwith neutral detergent. Dry them thoroughly. Check whether anyforeign matter remains in the cabinet. If any, remove it. For anyproblem which is difficult to handle, report the relevant depart-ment in time.



Power and Ground CablesCheck

Procedure Check whether the power cable and ground wires are connectedproperly and are free of rust.

Result Both power cables and ground wires are in proper connection andare free of rust.

Note:

As the ZXMSG 5200 cabinet is directly connected to the exter-nal line, it is forbidden to combine the distribution frame ground(lightning protection ground) with the working ground and the pro-tection ground, avoiding equipment damage due to the increaseof abnormal voltage and current. In addition, remember to equipthe related lightning protection device before connecting the 220V mains supply directly to the primary power supply.

Handling If there is anything wrong with a power cable or ground cable,reconnect or replace it.


C h a p t e r 6

Quarterly Maintenance

Table of ContentsQuarterly Maintenance Items ..............................................17GIS Changeover Test .........................................................17Maintaining Storage Battery................................................18Ground Resistance Testing..................................................18

Quarterly Maintenance ItemsTable 5 presents the quarterly maintenance items of the ZXMSG5200.

TABLE 5 QUARTERLY MAINTENANCE ITEMS

Category Item

Changeover test GIS changeover test

Battery maintenance Storage battery

Grounding resistance test Grounding resistance

Note:


GIS Changeover TestProcedure Pull one of the GIS cards out of the ZXMSG 5200 shelf.

Result All subscribers on the whole shelf still work normally.

Handling If changeover fails, replace the GIS card. If the fault is still there,contact the technical personnel in time for troubleshooting.



Note:

Carry out this operation at night when there is less traffic. Reportto the superior authority before carrying out the changeover.

Maintaining Storage BatteryFloating Charging Normally, the storage battery is in the status of float charging. Be

sure to regularly check the float charge voltage and maintain itwithin a specified range. The storage battery needs an equalizedcharge quarterly.

Procedure Disable the AC input and supply power with the storage battery.Execute theMML command to collect real-time power parameters.When the voltage of the storage battery drops to -46 V, restorethe AC input. Use the MML command to set the charging modeas equalized charge. When the battery is fully charged, set thecharging mode as float charge with the MML command.

Maintenance Keep the temperature in the battery room under 30 °C. Keep thestorage battery clean, dry and away from the fire source.

Note:

Read the storage battery guide carefully before using any kind ofstorage battery.

Ground Resistance TestingMeter Grounding resistance tester

Procedure Test the grounding resistance of the ZXMSG 5200 with a groundingresistance tester.

Result The measured values should meet the following conditions:

The grounding resistance of the ZXMSG 5200 with a capacityof over 10,000 lines must not be greater than 1 Ω.

The grounding resistance of the ZXMSG 5200 with a capacityof less than 2,000 lines must not be greater than 5 Ω.

The grounding resistance of the ZXMSG 5200 with a capacityof 2,000 ~ 10,000 lines must not be greater than 3 Ω.

Handling If the grounding resistance value is too high, check the groundwires and ground posts.


C h a p t e r 7

Reference Charts forMaintenance

Table of ContentsSystem Networking Diagram...............................................19System Resource Allocation Table ........................................20

System Networking DiagramSuggestion It is suggested to get the System Networking Diagram from the

engineering document.

Contents Table 6 contains the basic information about the equipment net-working in the office. Mark the information such as the equipmentroom name, telephone, attendants, and actual installation condi-tions that may be of help to the maintenance personnel.

TABLE 6 SYSTEM NETWORKING DIAGRAM

Equipment Room: Telephone:



note:

Note:

The user can replicate this page as required.

System Resource AllocationTableThe subscriber resource allocation table is listed in Table 7.

TABLE 7 SYSTEM RESOURCE ALLOCATION TABLE

NEName

Shelf No. Office Number Range Remarks


Chapter 7 Reference Charts for Maintenance

NEName

Shelf No. Office Number Range Remarks

Note:

The user can reproduce this page as required.


A p p e n d i x A

Common MaintenanceTables

Table of ContentsCommon Maintenance Tables ..............................................23

Common MaintenanceTablesThis part presents the following maintenance tables:

Table 8 lists daily maintenance table.

Table 9 lists weekly maintenance table.

Table 10 lists monthly maintenance table.

Table 11 lists quarterly maintenance table.

TABLE 8 DAILY MAINTENANCE TABLE

Office: Time:

Category Item Re-sult

Engi-neer

Re-marks

Power voltage

Temperature in theequipment room

Humidity in theequipment room

Operational status ofthe air conditioner

Environmentsupervisionmaintenancecheck

Dust-proof measures

Fan running status

Card operation

Maintenancecheck on activeequipmentrunning status

Alarm information




Engi-neer

Re-marks

Running statusof auxiliaryequipment

Transmission system

– The user can add other maintenance items as required.

TABLE 9 WEEKLY MAINTENANCE TABLE

Office: Time:


Engi-neer

Re-marks

Running statusof auxiliaryequipment

Cable distributionmodule

Equipment room Equipment roomenvironment


TABLE 10 MONTHLY MAINTENANCE TABLE

Office: Time:


Engi-neer

Re-marks

CabinetHardware check

Power cables andground wires


TABLE 11 QUARTERLY MAINTENANCE TABLE

Office: Time:


Engi-neer

Re-marks

Changeover test GIS changeover test

Batterymaintenance

Storage battery

Groundingresistance test

Grounding resistancetest



A p p e n d i x B

Board Replacement

Table of ContentsOverview..........................................................................25GIS Card Replacement .......................................................25Power Card Replacement ...................................................26Other Card Replacement.....................................................27

OverviewReplacement of faulty cards is a commonly used and very impor-tant maintenance method during daily maintenance. We recom-mend that the equipment maintenance personnel, before replac-ing a card, should contact the related technical personnel or ZTE’slocal service engineers for technical support and guidance.

GIS Card ReplacementIntroduction The GIS cards are hot-swappable. It means that it is possible

to replace the GIS card when the equipment is power ON. It isnot required to turn OFF the power supply of the sub-shelf. TheGIS card works in the active/standby status. When a GIS cardbecomes faulty, there is no influence on the service of the unit.The maintenance personnel can replace the faulty GIS card at anytime.

Preparation Based on fault observation and analysis, verify that the card isfaulty and needs to be replaced. Verify that the spare part is wellfunctioning, and the model and program of the spare card areidentical to those of the faulty card. Prepare an anti-static bag, ananti-moisture bag, a classified cartoon, and some adhesive labelsfor labeling.

Procedure To replace the GIS card, perform the following steps:

1. Wear an anti-static wrist strap.

2. Pull the clips of the fault card outward and downward with onehand using moderate force. When the card detaches with theslot and ejects, hold the lower edge of the card with the otherhand, and gently pull the card out. During this process, avoidtouching components or circuits on the card with the hand.



3. Place the removed faulty card into an anti-static bag lined withan anti-moisture bag, and label the bag to indicate the cardmodel, program version and the word “Faulty”. Place the faultycard into a carton as per the classification. Label the carton tofacilitate consequent identification.

4. Verify the name of the spare card and insert it into the corre-sponding slot in the shelf by pressing the clips on the card witha thumb and push the card with moderate force until the clipsare tight, which means that the card is in position.

Verification After the card is inserted, there will be a self-test process whichmay take some time. If the self-test succeeds, the indicators startnormal indication and the service resumes, indicating that the re-placement has succeeded. If the card self-test fails, namely if theself-test does not stop, the final indication is abnormal, and theservice of the related unit does not resume, the replacement hasfailed. Check whether the spare card is damaged or whether thefault is on another card.

Note:

Copy the above data to the GIS card.

Power Card ReplacementIntroduction For the ZXMSG 5200 system, the power cards POWER H and

POWER K are available. For the two types of power cards, thereplacement procedures and precautions are the same. Here,POWER H card is taken as an example.

The POWER H card does not support hot swapping; namely, it isstrictly forbidden to replace the POWER H card when the equip-ment is power ON. Be sure to turn OFF the power switch beforereplacing the card.

Preparation Based on fault observation and analysis, verify that the card isfaulty and needs to be replaced. Verify that the spare card is wellfunctioning, and the model and program of the spare card areidentical to those of the faulty card. Prepare an anti-static bag, ananti-moisture bag, a classified cartoon, and some adhesive labelsfor labeling.

Procedure To replace the Power H card, perform the following steps:


2. Turn OFF the switch of the faulty POWER H.

3. Pull the extractor of the faulty card outward and downward withone hand using moderate force. When the card detaches withthe slot and ejects, hold the lower edge of the card with theother hand, and gently pull the card out. During this process,avoid touching components or circuits on the card with thehand.

4. Put the removed faulty card into an anti-static bag lined with ananti-moisture bag, and label the bag to indicate the card model,


Appendix B Board Replacement

program version and the word “Faulty”. Place the faulty cardinto a carton as per the classification. The carton should alsobe labeled to facilitate consequent identification and proposal.

5. Verify the name of the spare card and insert it into the cor-responding slot in the shelf by pressing the extractor on thecard with a thumb and push the card in with moderate forceuntil the extractor is caught, which means that the card is inposition.

6. After inserting the POWER H, turn ON its power switch.

Verification Check whether the indicators are in normal status and whether theservice has resumed. To minimize influence on services, the cardshould be replaced in the time section when the traffic load in thelowest.

If the final indicators are in abnormal status after the replacement,the replacement has failed. Check whether the spare card is ingood condition.

Other Card ReplacementIntroduction For the ZXMSG 5200 system, the other cards refer to the ser-

vice cards and subscriber cards, such as the GADLC, GVDLC, ALC,DLCC, GPOI and CEE cards.

All the other cards are hot-swappable. It means that it is possi-ble to replace the card when the equipment ower is ON. It is notrequired to turn OFF the power supply of the sub-shelf.

Preparation Based on fault observation and analysis, verify that the card isfaulty and needs to be replaced. Verify that the spare card is wellfunctioning, and the model and program of the spare card areidentical to those of the faulty card. Prepare an anti-static bag, ananti-moisture bag, a classified carton, and some adhesive labelsfor labeling.

Procedure To replace the card, perform the following steps:


2. Pull the extractor of the faulty card outward and downward withone hand using moderate force. When the card detaches withthe slot and ejects, hold the lower edge of the card with theother hand, and gently pull the card out. During this process,avoid touching components or circuits on the card with thehand.

3. Put the removed faulty card into an anti-static bag lined withan anti-moisture bag, and label the bag to indicate the cardmodel, program version and the word “Faulty”. Place the faultcard into a carton as per the classification. The carton shouldalso be labeled to facilitate consequent identification.

4. Verify the name of the spare card and insert it into the cor-responding slot in the shelf by pressing the extractor on thecard with a thumb and push the card in with moderate forceuntil the extractor is caught, which means that the card is inposition.



Verification After the card is inserted, there is a self-test process which maytake some time. If the self-test succeeds, the indicators start nor-mal indication and the service resumes, indicating that the re-placement has succeeded. If the card self-test fails, namely if theself-test does not stop, the final indication is abnormal, and theservice of the related unit does not resume, the replacement hasfailed. Check whether the spare card is damaged or whether thefault is on another card.


Tables

Table 1 Safety Signs And Meanings ....................................... 1

Table 2 Daily Maintenance Items........................................... 7

Table 3 Weekly Maintenance Items.......................................13

Table 4 Monthly Maintenance Items .....................................15

Table 5 Quarterly Maintenance Items ...................................17

Table 6 System Networking Diagram ....................................19

Table 7 System Resource Allocation Table .............................20

Table 8 Daily Maintenance Table ..........................................23

Table 9 Weekly Maintenance Table .......................................24

Table 10 Monthly Maintenance Table.....................................24

Table 11 Quarterly Maintenance Table...................................24


Index

Aair conditioner.....................9

CCabinet Cleaning ...............15Cable Distribution ModuleCheck.............................13Card LED Status Check.......10Common MaintenanceTables.............................23

DDaily Maintenance Items ......7Dust Proof ..........................9

EEquipment RoomHumidity Check .................8Equipment RoomTemperature Check ............8

Ffan ..................................10

GGIS Changeover Test .........17Ground ResistanceTesting ...........................18

HHumidity ............................8

MMaintaining StorageBattery ...........................18

PPower and Ground CablesCheck.............................16Power Card Replacement.....26Power Voltage .....................8

QQuarterly MaintenanceItems .............................17Querying Current Alarms.....11

RRoutine Maintenance............3Routine MaintenancePrecautions .......................5

SSafety Instructions ..............1Safety Signs .......................1System ResourceAllocation Table................20

TTemperature .......................8


Glossary

DC- Direct Current

LED- Light Emitting Diode


msag 5200 routine maint

Documents

zte corporationno

zte corporationor

distribution ofthis

card led status check

equipment room humidity

power voltage check

maintenance overview

daily maintenance items