Routine Maintenance(V800R009C00 01)
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SmartAX MA5600T/MA5603T Multi-service AccessModuleV800R009C00
Routine Maintenance
Issue 01
Date 2011-07-15
HUAWEI TECHNOLOGIES CO., LTD.
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Copyright Huawei Technologies Co., Ltd. 2011. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respective holders. NoticeThe purchased products, services and features are stipulated by the contract made between Huawei and thecustomer. All or part of the products, services and features described in this document may not be within thepurchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,and recommendations in this document are provided "AS IS" without warranties, guarantees or representationsof any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute the warranty of any kind, express or implied.
Huawei Technologies Co., Ltd.Address: Huawei Industrial Base
Bantian, LonggangShenzhen 518129People's Republic of China
Website: http://www.huawei.com
Email: [email protected]
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http://www.huawei.commailto:[email protected]
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About This Document
Intended AudienceRoutine maintenance on the MA5600T/MA5603T ensures the reliable operation of theMA5600T/MA5603T, and maintains the best running for the MA5600T/MA5603T. Thisdocument provides guidance on how to maintain the MA5600T/MA5603T in terms of the remotemaintenance and field maintenance.
This document is intended for:
l System maintenance engineers
l Network monitoring engineers
l Field maintenance engineers
Symbol ConventionsThe following symbols may be found in this document. They are defined as follows
Symbol Description
Indicates a hazard with a high level of risk which, if notavoided, will result in death or serious injury.
Indicates a hazard with a medium or low level of risk which,if not avoided, could result in minor or moderate injury.
Indicates a potentially hazardous situation that, if notavoided, could cause equipment damage, data loss, andperformance degradation, or unexpected results.
Indicates a tip that may help you solve a problem or saveyour time.
Provides additional information to emphasize orsupplement important points of the main text.
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Command ConventionsConvention Description
Boldface The keywords of a command line are in boldface.
Italic Command arguments are in italics.
[ ] Items (keywords or arguments) in square brackets [ ] areoptional.
{ x | y | ... } Alternative items are grouped in braces and separated byvertical bars. One is selected.
[ x | y | ... ] Optional alternative items are grouped in square bracketsand separated by vertical bars. One or none is selected.
{ x | y | ... } * Alternative items are grouped in braces and separated byvertical bars. A minimum of one or a maximum of all canbe selected.
GUI ConventionsConvention Description
Boldface Buttons, menus, parameters, tabs, window, and dialog titlesare in boldface. For example, click OK.
> Multi-level menus are in boldface and separated by the >signs. For example, choose File > Create > Folder
Update HistoryUpdates between document issues are cumulative. Therefore, the latest document issue containsall updates made in previous issues.
Updates in Issue 01 (2011-07-15)Based on issue V800R008C02 01 (2011-01-15), the document is updated as follows:
The following chapters were deleted:l Remote Maintenance Guide.l Operations Related to the Maintenance.
About This Document
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Contents
About This Document...................................................................................................................iii
1 Overview......................................................................................................................................1-11.1 Basic Principles of the Maintenance...............................................................................................................1-21.2 Maintenance Recommendations for the Third-party Device..........................................................................1-31.3 How to Obtain Technical Support from Huawei............................................................................................1-4
2 Tasks and Periods of Routine Maintenance.........................................................................2-1
3 Field Maintenance Guide.........................................................................................................3-13.1 Checking the Ground of the Device................................................................................................................3-33.2 Checking the Sensor........................................................................................................................................3-43.3 Checking the Hardware Status of the Fans.....................................................................................................3-53.4 Cleaning the Air Filter of the MA5600T Cabinet...........................................................................................3-63.5 Cleaning the Air Filter of the MA5603T Subrack..........................................................................................3-93.6 Checking the Battery.....................................................................................................................................3-103.7 Checking the MA5600T Cabinet Surface.....................................................................................................3-12
4 Device Routine Maintenance Records...................................................................................4-14.1 Remote Maintenance Record..........................................................................................................................4-24.2 Field Maintenance Record..............................................................................................................................4-34.3 Unexpected Fault Handling Record................................................................................................................4-44.4 Office Data Modification Record....................................................................................................................4-5
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Figures
Figure 3-1 Air filters at the bottom and on the door of the cabinet......................................................................3-8Figure 3-2 The air filter of the MA5603T subrack.............................................................................................3-10
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Tables
Table 2-1 Tasks and periods of the remote maintenance and field maintenance.................................................2-1Table 4-1 Remote maintenance record of the MA5600T/MA5603T...................................................................4-2Table 4-2 Field maintenance record of the MA5600T/MA5603T.......................................................................4-3Table 4-3 Unexpected fault handling record of the MA5600T/MA5603T..........................................................4-4Table 4-4 Office data modification record of the MA5600T/MA5603T.............................................................4-5
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1 OverviewAbout This Chapter
This topic describes the basic principles of the routine maintenance, suggestions on themaintenance of the third-party devices, and methods of obtaining the technical support fromHuawei.
1.1 Basic Principles of the MaintenanceThis topic describes the basic principles of the maintenance, such as the remote maintenanceguide, field maintenance guide, principles of parts replacement, and troubleshooting principles.
1.2 Maintenance Recommendations for the Third-party DeviceTo ensure the performance of Huawei devices, you must check and maintain the third-partydevice, which is not provided by Huawei, according to the recommendations for maintainingthe third-party device.
1.3 How to Obtain Technical Support from HuaweiThis topic describes how to obtain technical support from Huawei.
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1.1 Basic Principles of the MaintenanceThis topic describes the basic principles of the maintenance, such as the remote maintenanceguide, field maintenance guide, principles of parts replacement, and troubleshooting principles.
Remote Maintenance Guide
When performing the remote maintenance, comply with the following principles:l Do not install any software that is not related to device maintenance on the maintenance
terminal.l Perform the routine maintenance on the device according to the remote maintenance guide,
and fill in the remote maintenance table.l In the case of an emergency during the routine maintenance, such as a device fault, handle
the fault according to the troubleshooting procedure, and keep related records. If the faultcannot be rectified, contact the local representative office of Huawei for technical support.
l Back up the data before data modification, and keep related records.
Field Maintenance Guide
When performing the field maintenance, comply with the following principles:l Keep the telecommunications room neat and tidy, and prevent rodents or other insects from
entering the device.l Ensure that the device is properly grounded according to the ground requirements.l Do not insert, remove, reset, or load a board randomly.l Do not insert a faulty board in the cabinet; otherwise, another fault may be caused.l Use the ESD wrist strap or ESD gloves to protect the device from ESD damage.l Place spare boards or other spare parts in ESD bags.l Take ESD measures to protect the port on the board. When performing an operation on a
port, wear the ESD wrist strap or ESD gloves. Make appropriate preparations for discharge,that is, prepare the external cables and protective jackets of ports.
NOTEIt is recommended that you reserve some installation materials for boards in the telecommunicationsroom, such as the vacuum-formed box and the ESD bag.
l After the field maintenance operation on a device is complete, close the door of the cabinetproperly.
l Perform the routine maintenance on the device according to the field maintenance guide,and fill in the device maintenance table.
l For an emergent task that is encountered during routine maintenance, such as a device fault,handle the fault by following the troubleshooting procedure, and keep related records. Forthe fault that cannot be rectified, contact the local representative office of Huawei fortechnical support.
Principles of Parts Replacement
When replacing parts, comply with the following principles:
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l Make sure that operations are feasible.
Check whether spare parts for the part to be replaced are available in the storehouse. Ifnot, contact the local representative office of Huawei for spare parts.
Make sure that parts replacement is performed only by qualified maintenance engineerswho are familiar with the following knowledge:
Functions of the MA5600T/MA5603T parts well.
Basic flow of parts replacement.
Basic skills of parts replacement.
Make sure that the risks of the replacement are controllable. Parts replacement is anoperation subject to potential risks. Before replacing a part, estimate whether the riskscan be controlled by technical protective measures without powering off a device. Ifyes, replace the part. If not, contact the local representative office of Huawei fortechnical support.
l Check the compatibility of spare parts before replacing faulty parts or upgrading parts.l Use ESD bags and ESD boxes to contain and transport spare parts.l Arrange, record, and return faulty parts in routine maintenance for obtaining available spare
parts in time, especially some critical parts, such as boards.
Troubleshooting Principles
When rectifying a fault, comply with the following principles:
l Actively collect the fault information. When a fault occurs, learn the related informationabout the fault, and then make a plan for further actions. Do not handle the fault beforecollecting the details of the fault.
l During troubleshooting, keep detailed records of each operation and the related result. Thedetails of the troubleshooting process serve as a ground for applying for Huawei technicalsupport, which shortens the troubleshooting time.
l If you try to rectify the fault but fail, contact the Customer Service Center of Huawei. Inaddition, when you report the problem to Huawei engineers, provide the followinginformation:
Full name of the office where the fault occurs
Name and telephone number of the contact person
Time when the fault occurs
Details of the fault
MA5600T/MA5603T software version
Measures taken after detecting the fault and the related results
Fault level and the expected time for resolution
1.2 Maintenance Recommendations for the Third-partyDevice
To ensure the performance of Huawei devices, you must check and maintain the third-partydevice, which is not provided by Huawei, according to the recommendations for maintainingthe third-party device.
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Maintenance Recommendations
The third-party device needs to be checked and maintained periodically according to therecommendations for maintaining the third-party device. In addition, the maintenance engineersneed to perform the following:
l Periodically check the temperature and humidity of the telecommunications room to ensurethe normal operating environment of the third-party device.
l Periodically check the power supply of the third-party device to prevent the interruption ofpower supply.
l Periodically check the alarms and known defects of the third-party device. Take effectivemeasures in time to rectify the fault and ensure the normal operation of the third-partydevice.
l Periodically check the status of each link and connection when the third-party device isrunning. Take effective measures in time to rectify the fault and ensure the normal operationof the third-party device in time.
l Periodically perform checking, backup, testing, and cleaning operations to detect thedefects, such as normal aging, function invalidity, and performance deterioration. Takeeffective measures in time to rectify the fault and prevent accidents.
l Record the check results and the detected problems in the maintenance table as a referencefor checking the running status and analyzing the fault cause in the future.
1.3 How to Obtain Technical Support from HuaweiThis topic describes how to obtain technical support from Huawei.
If faults that require urgent handling or critical faults occur when maintaining the device ortroubleshooting faults, you can contact the technical support engineers of the regional office ofHuawei through telephone, fax, or email for technical support.
If a fault that is difficult to locate or troubleshoot occurs when maintaining the device ortroubleshooting faults or you cannot troubleshoot the fault by referring to this manual, you canvisit the Website for technical support. When you log in to the Website http://support.huawei.com, choose My support > My Requests, and a request window is displayed.Click New Request to create a request form, and fill in the required information for help.
Pay attention to the following aspects when you fill in the request.
NOTE
Only equipment users (companies or organizations that have purchased the products from Huawei or haveavailed services from Huawei) who have been authorized by Huawei have the authority to use the Mysupport function.
Summaryl This field contains up to 240 characters. Hence, only a brief summary should be added.
The summary should be clear and concise.
l This field should include a product name, and should provide a summary of the faultfeedback. The format should be product name + summary of the issue.
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DetailsThis field contains up to 5000 characters. Therefore, you need to fill in the detailed information.It includes the following information:
l Fault DescriptionThis specifies a detailed description about the fault, including the following: Time when a fault occurs Details of a fault Measures that have been taken by the user Other related information about the fault reported by the user
l NetworkingThis provides the detailed networking should be described or the detailed network diagramshould be attached.
l Software/Hardware versionThis provides the detailed software and hardware versions of the control board and thefaulty board.
l Subscriber/Engineer informationThis provides the name, contact number, and the email address (if available) of the user orthe engineer who reports the fault should be provided.
l Other informationThis provides the configuration data, the operation log, and the alarm information.
NOTE
When you fill in all the contents, click Save to save your request. The system saves and displays theinformation that you have filled in.
SubmitClick Submit to submit your request.
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2 Tasks and Periods of Routine MaintenanceThis topic lists the tasks and periods of the remote maintenance and field maintenance in thefollowing table. You can select the required tasks and periods according to the table.
Table 2-1 lists the tasks and periods of the remote maintenance and field maintenance.
Table 2-1 Tasks and periods of the remote maintenance and field maintenance
Maintenance Task Suggested MaintenancePeriod
Types of MaintenanceTasks
Monitoring Critical andMajor Alarms of NEs
Daily Remote maintenance taskNOTE
For details about remotemaintenance, seeConfiguration >Configuration-GUI >MA5600T or MA5603T NEManagement > MA5600T orMA5603T NE ServiceConfiguration > RemoteMaintenance Guide.
Checking the Backup of NEData
Weekly
Measuring the CPU UsageRate of a Board
Weekly
Measuring the Performanceof an Upstream Ethernet Port
Weekly
Checking the NE User Level Half a year
3.1 Checking the Ground ofthe Device
Quarterly Field maintenance task
3.2 Checking the Sensor Quarterly
3.3 Checking the HardwareStatus of the Fans
Quarterly
3.4 Cleaning the Air Filterof the MA5600T Cabinet
Yearly
3.5 Cleaning the Air Filterof the MA5603T Subrack
Yearly
3.6 Checking the Battery Yearly
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Maintenance Task Suggested MaintenancePeriod
Types of MaintenanceTasks
3.7 Checking the MA5600TCabinet Surface
Yearly
2 Tasks and Periods of Routine Maintenance
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3 Field Maintenance GuideAbout This Chapter
This topic describes the tasks of maintaining the hardware of the indoor cabinets of theMA5600T/MA5603T, and the reference standard, operation guide, exception handling, andcommand reference of the tasks.
ContextNOTEThe field maintenance guide provides guidance on maintaining the indoor cabinets. For information onhow to maintain outdoor cabinets, see the maintenance guide of outdoor cabinets.
3.1 Checking the Ground of the DeviceIt is recommended that you check whether the ground cable is properly installed and whetherthe ground resistance complies with the relevant standard once in every three months. Thisoperation ensures the reliable running of the device and avoids the potential security disastersthat may exist in the system.
3.2 Checking the SensorIt is recommended that you check whether the hardware of sensors is normal once in every threemonths. This operation ensures that the sensors can report environment alarms normally andcorrectly and facilitates the monitoring of the running environment of NEs according to thereported environment alarms.
3.3 Checking the Hardware Status of the FansIt is recommended that you check the hardware status of the fans once in every three months.This operation ensures that the system can work under proper temperature.
3.4 Cleaning the Air Filter of the MA5600T CabinetIt is recommended that you clean the air filters at the bottom and on the door of the cabinet onceevery year. This operation ensures that the heat dissipation system works properly.
3.5 Cleaning the Air Filter of the MA5603T SubrackIt is recommended that you clean the air filter inside the subrack once every year. This ensuresthat the heat dissipation system works properly.
3.6 Checking the Battery
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It is recommended that you check the status of the battery once every year. This operation ensuresthat the power supply system can automatically switch to the battery in the case that the ACpower supply is cut off. In this manner, the running of services is not affected.
3.7 Checking the MA5600T Cabinet SurfaceIt is recommended that you should check the cabinet surface once every year. This operationensures that the cabinet can work normally and stably.
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3.1 Checking the Ground of the DeviceIt is recommended that you check whether the ground cable is properly installed and whetherthe ground resistance complies with the relevant standard once in every three months. Thisoperation ensures the reliable running of the device and avoids the potential security disastersthat may exist in the system.
Contextl The proper installation of the ground cable ensures the secure ground of the device.l If the ground resistance exceeds the limit, the functions of lightning protection and ground
of the device and the telecommunications room are affected, which may lead to the securitydisaster in the environment where the devices are running.
Tools, Instruments, and Materialsl A multimeterl An earth resistance tester
Reference Standardl Check whether the ground cable meets the following requirements:
Each connection point is safe and reliable without corrosion and oxidation. The ground cable is not aged, and its jacket is not damaged. The ground bar is not corroded or oxidized, and it is properly processed with anti-
corrosion measures.l Check whether the ground resistance meets the following requirements:
The lap resistance between the ground cable of the device and the ground bar or groundbody is smaller than 0.1 ohm.
The ground resistance between the ground bar or ground body and the earth is smallerthan 10 ohms.
Precautions
CAUTIONTake appropriate measures to protect the device against lightning during monsoons. Thisprevents damage to the equipment and personal injury.
Procedure
Step 1 Check and ensure that the ground cable is connected properly.l When a lightning-proof ground bar is installed at the bottom of the cabinet or of the
workbench, check and ensure that the connections are safe and reliable, such as theconnections of the ground bar of the surge protector, the connections of the ground posts
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(PGND and BGND) of the cabinet, and the connections of the ground bar of thetelecommunications room.
l When no lightning-proof ground bar is installed at the bottom of the cabinet or of theworkbench, check and ensure that the PDU is connected to the ground cables (PGND andBGND) correctly and reliably.
Step 2 Check whether the ground resistance complies with the relevant standard.1. Connect one end of the multimeter to the ground cable and the other end to the ground bar
or ground body for checking whether the ground cable is installed reliably.
2. Check the resistance between the ground bar or ground body and the earth by using an earthresistance tester.
Step 3 If the installation of ground cables is abnormal, handle the fault according to "ExceptionHandling" until the fault is rectified.
----End
Exception Handling1. If a ground cable is aged or its jacket is damaged, replace the ground cable.
2. If a connection point is corroded or aged, replace the ground cable or the lightning-proofground bar as required.
3. If the lap resistance between the ground cable of the device and the ground bar or groundbody is greater than 0.1 ohm, route the ground cable again.
4. If the ground resistance between the ground bar or ground body and the earth is larger than10 ohms, take one of the following measures to reduce the earth resistance:
l Burying the ground body or ground network deeper.
l Using a larger ground body
l Reducing the resistance of the earth.
5. If the fault persists, contact Huawei technical support engineers. For details, see How toObtain Technical Support from Huawei.
3.2 Checking the SensorIt is recommended that you check whether the hardware of sensors is normal once in every threemonths. This operation ensures that the sensors can report environment alarms normally andcorrectly and facilitates the monitoring of the running environment of NEs according to thereported environment alarms.
Prerequisitel The communication between the device and the U2000 must be normal. This task must be
carried out by the monitoring engineers of the network management system.
l The hardware for monitoring NE alarms must be configured on devices, such as theenvironmental monitoring unit.
l The thresholds of environment alarms must be set on the U2000.
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Context
Sensors are used to collect monitored environment parameters, such as temperature and waterleakage.
The sensors are classified into the following types: temperature and humidity sensor, door statussensor, smoke sensor, water sensor, main distribution frame (MDF) sensor, surge protectorsensor, battery temperature sensor, and other sensors used by operators.
Reference Standard
When the environment where an alarm is generated is stimulated, the alarm can be reported andqueried on the U2000. For information on how to query alarms on the U2000, see MonitoringCritical and Major Alarms of Devices.
Procedure
Step 1 Simulate the environment where an alarm is generated on site. The following examples areprovided for reference.
l In the case of a temperature sensor, decrease the threshold of the temperature alarm tosimulate an over-temperature alarm.
l In the case of a smoke sensor, make some smoke to generate a smoke alarm.
l In the case of a door status sensor, open the cabinet door to generate a cabinet door statusalarm.
CAUTIONThe alarm environment must be simulated without interrupting the ongoing services.
Step 2 Check whether the corresponding environment alarms are reported to the U2000.
Step 3 If no environment alarms are reported to the U2000, the hardware of sensors is abnormal. Handlethe fault according to "Exception Handling" until the fault is rectified.
----End
Exception Handlingl Replace the faulty sensors until the corresponding environment alarms can be reported and
queried on the U2000.
l If the fault persists, contact Huawei technical support engineers. For details, see 1.3 Howto Obtain Technical Support from Huawei.
3.3 Checking the Hardware Status of the FansIt is recommended that you check the hardware status of the fans once in every three months.This operation ensures that the system can work under proper temperature.
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Context
The normal status of fans ensures that the boards and the other parts of the device work in thenormal state. Check the fans carefully, especially before summer, and make sure that each fanworks in the normal state.
Tools, Instruments, and Materialsl An anti-static wrist strip or gloves
l A Phillips screwdriver
Reference Standardl Every fan in the fan tray works in the normal state and does not generate any abnormal
noise.
l The STATUS indicator in the fan tray is green and is on for 1s and off for 1s repeatedly.
Procedure
Step 1 Check the running status of the fans in the fan tray.
Step 2 If a fan is abnormal, handle the fault according to "Exception Handling" until the fault is rectified.
----End
Exception Handling1. If the STATUS indicator of the fan tray is abnormal, do as follows:
l If the STATUS indicator is yellow and blinks rapidly, the fan tray is not registered oris being loaded. In this case, you need not take any measures.
l If the STATUS indicator is yellow and is on for 1s and off for 1s repeatedly, a minoralarm occurs but does not affect services. In this case, solve this alarm accordingly.
l If the STATUS indicator is steady yellow, the fan monitoring communication isdisconnected. In this case, check whether the communication status between the fantray and device is connected.
l If the Status indicator is red and blinks rapidly, the fan is faulty or the over-temperaturealarm is generated in the system. In this case, replace the faulty fan, or increase the fanspeed to lower the temperature.
2. If a fan generates abnormal noise, some objects may block the fan or the fan blades maybe loose. In this case, remove the objects that block the fan, or replace the faulty fan trayaccordingly.
3. If a fan is damaged, replace the faulty fan tray.4. If the fault persists, contact Huawei technical support engineers. For details, see 1.3 How
to Obtain Technical Support from Huawei.
3.4 Cleaning the Air Filter of the MA5600T CabinetIt is recommended that you clean the air filters at the bottom and on the door of the cabinet onceevery year. This operation ensures that the heat dissipation system works properly.
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Tools, Instruments, and Materialsl A vacuum cleanerl The dry cotton cloth
Reference StandardThe heat dissipation system works properly.
Precautionsl Huawei recommends that you should clean the air filter once every year. You can adjust
the frequency according to the condition of the telecommunications room.l Exercise caution when cleaning the air filter and prevent sharp objects from damaging it.l When removing the air filer, apply proper force. Otherwise, the air filter may be distorted.l Do not install a wet air filter in the cabinet. Otherwise, the cabinet absorbs moisture and a
short-circuit may be caused, damaging the device.l The air filter must be attached to the sticking bar firmly to prevent the air filter from coming
off. If the sticking bar is faulty, replace it.
Procedure
Step 1 Check whether the air filters at the bottom and on the door of the cabinet are covered by the dust.If the air filters are covered by the dust, the ventilation of the heat dissipation system is affected.Perform the following steps to clean the air filters. The air filters at the bottom and on the doorof the cabinet are shown in Figure 3-1.
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Figure 3-1 Air filters at the bottom and on the door of the cabinet
Step 2 Clean the air filter at the bottom of the cabinet1. Press down the two buckles of the air filter and lift up the air filter slightly, and then pull
it out.
2. Flap dust on the air filter off, and clean it with a vacuum cleaner; or clean the air filter withwater and dry it at a well-ventilated place.
3. Place the air filter at the bottom of the cabinet.
4. Adjust the position of the air filter and align the buckles. Press down the buckles to fix theair filter.
Step 3 Clean the air filter on the cabinet door1. Open the door of the cabinet, and remove the black air filter from the sticking bar that is
fixed on the inner side of the door.
2. Flap dust on the air filter off, and clean it with a vacuum cleaner; or clean the air filter withwater and dry it at a well-ventilated place.
3. Use a clean and dry cotton cloth to clean the metal inner side of the cabinet.
4. Install the clean and dry air filter on the inner side of the cabinet door. Ensure that the airfilter is attached to the sticking bar firmly.
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Step 4 If the air filter is faulty, handle the fault according to "Exception Handling" until the fault isrectified.
----End
Exception HandlingIf the air filter is damaged or wears out, replace it with a new air filter.
3.5 Cleaning the Air Filter of the MA5603T SubrackIt is recommended that you clean the air filter inside the subrack once every year. This ensuresthat the heat dissipation system works properly.
Tools, Instruments, and Materialsl An ESD wrist strap or a pair of ESD glovesl Phillips screwdriverl A vacuum cleanerl The dry cotton cloth
Reference StandardThe heat dissipation system works properly.
Precautionsl The air filter is applicable to the central office (CO) and is not applicable to the outside
plant (OSP).l Huawei recommends that you should clean the air filter once every year. You can adjust
the frequency according to the condition of the telecommunications room.l Exercise caution when cleaning the air filter and prevent sharp objects from damaging it.l When removing the air filer, do not exert extra force. Extra force may distort the air filter.l Do not install a wet air filter in the subrack. Otherwise, the subrack will absorb moisture
during the air intake and the internal components may short-circuit, which will cause thedevice to be faulty.
Procedure
Step 1 Wear an ESD wrist strap, and connect its ground end to the ESD jack on the cabinet; or wearthe ESD gloves. Figure 3-2 shows the location of the air filter in the subrack.
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Figure 3-2 The air filter of the MA5603T subrack
Step 2 Use the Phillips screwdriver to loosen the screws anticlockwise on the top of the air filter panel.
Step 3 Grip the screws on the air filter panel and pull the air filter out along the guide rails on thesubrack.
Step 4 Flap dust on the air filter off, and clean it with a vacuum cleaner; or clean the air filter with waterand dry it at a well-ventilated place.
Step 5 Push the cleaned air filter into the subrack along the guide rails on the subrack. Fit the air filterin the original position in the subrack.
Step 6 Use the Phillips screwdriver to fasten the screws clockwise on the top of the air filter panel.
Step 7 If the air filter is faulty, handle the fault according to "Exception Handling" until the fault isrectified.
----End
Exception HandlingIf the air filter is damaged, aged, or about to be damaged, replace it with a new air filter.
3.6 Checking the BatteryIt is recommended that you check the status of the battery once every year. This operation ensuresthat the power supply system can automatically switch to the battery in the case that the ACpower supply is cut off. In this manner, the running of services is not affected.
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Tools, Instruments, and Materialsl An adjustable wrench: Used to fasten screws.
l Screwdriver: Is used to unscrew the battery covering piece.
Reference Standardl The shell of the battery is clean and intact.
l The shell of the battery is intact and free of leakage or distortion. There is no acid fumearound the terminals or the safety valve.
l The joints between batteries are firm and free of corrosion.
l The proper spacing between batteries should be at least 10 mm.
l The terminals are not distorted or damaged. Damaged terminals will cause high contactresistance or cause cracks in the battery shell.
l The working temperature of the battery ranges from -20C to 50C.
l After the mains supply is disconnected, the cabinet switches to the battery and the powersupply is normal.
Procedure
Step 1 Check whether the cleanness of the battery shell, spacing between batteries, connection betweenthe battery terminal and the battery, and ambient temperature meet the requirement in "ReferenceStandard".
Step 2 If the batteries are faulty, handle the fault according to "Exception Handling" until the fault isrectified.
----End
Exception Handlingl If the shell of the battery is dirty, clean the shell immediately.
l If the shell of the battery leaks or is distorted, replace the battery immediately.
l If the terminal of the battery is distorted or damaged, replace the battery immediately.
l If the spacing between batteries is less than 10 mm, adjust it to a proper spacing.
l If the joints between batteries turn loose or are corroded, fasten or replace the jointsaccording to actual situations.
l If the working temperature of the battery is not within the range of -20C-50C, locate thecause that results in the over-temperature of the battery. Then, rectify the fault.
NOTEThe ambient temperature is critical to the service life of the battery. Research indicates that the servicelife of the battery is reduced to half each time the temperature increases by 10C when the ambienttemperature is beyond the temperature range of the battery.
l If the floating charging voltage of the battery is abnormal, it is recommended that youreplace the faulty battery.
l If the fault persists, contact Huawei technical support engineers. For details, see 1.3 Howto Obtain Technical Support from Huawei.
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3.7 Checking the MA5600T Cabinet SurfaceIt is recommended that you should check the cabinet surface once every year. This operationensures that the cabinet can work normally and stably.
Tools, Instruments, and Materialsl An anti-static wrist strip or glovesl A Phillips screwdriver
Reference StandardThe components of the cabinets are intact, the cabinet door can be opened and closed properly,and the door lock can be locked and unlocked properly.
Procedure
Step 1 Check whether the paint of the cabinet has flaked off and whether the cabinet is damaged dueto collision.
Step 2 Check whether there are any corrosion marks, dents, or cracks on the cabinet.
Step 3 Check whether the cabinet door can be opened and closed properly, and whether the door lockcan be locked and unlocked properly. Then, close the cabinet door.
CAUTIONMake sure the cabinet door can be closed properly so that the accidents can be avoided.
Step 4 If the cabinet door is damaged, handle the fault according to "Exception Handling" until the faultis rectified.
----End
Exception Handlingl If the paint on the cabinet surface has flaked-off, or the cabinet has been damaged due to
collision, repaint and clean the cabinet.l If the cabinet door or the door lock is faulty, contact Huawei technical support engineers.
For details, see 1.3 How to Obtain Technical Support from Huawei.
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4 Device Routine Maintenance RecordsAbout This Chapter
According to different maintenance tasks, different formats of maintenance tables are designed.Maintenance personnel can maintain the device based on the contents in these records and canrecord the maintenance information.
4.1 Remote Maintenance Record
4.2 Field Maintenance Record
4.3 Unexpected Fault Handling Record
4.4 Office Data Modification Record
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4.1 Remote Maintenance Record
Table 4-1 Remote maintenance record of the MA5600T/MA5603T
Site name: __________________ Date (YYYY-MM-DD): ___________________
Time on duty: From _________ to _________ Person on duty: ___________________
MaintenanceItem
Checklist ExceptionDescription
Operator
Monitoringcritical andmajor alarms ofdevices
Is there any uncovered alarm?A. YesB. NoIs there any alarm that causesdamages to the system?A. YesB. No
Checking thebackup of thedeviceconfigurationdata
Is the backup successful?A. YesB. No
Measuring theCPU usage ofthe board
Is the CPU usage of the boardnormal?A. YesB. No
Measuring theperformance ofthe upstreamports
Is the performance of theupstream ports normal?A. YesB. No
Checking thelevel of thedevice user
Is the setting of the level of thedevice user proper?A. YesB. No
Exceptionrecorded andhandling
Knownanomalies
Reviewingrecord
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4.2 Field Maintenance Record
Table 4-2 Field maintenance record of the MA5600T/MA5603TSite name: __________________ Date (YYYY-MM-DD): ___________________Time on duty: From _________ to _________ Person on duty: ___________________
Maintenance Item Checklist Exception Description Operator
Checking the groundstatus of the device
Is the ground cableinstalled normally?A. YesB. NoIs the resistance valuenormal?A. YesB. No
Checking the sensor Is the hardware of thesensor normal?A. YesB. No
Checking thehardware status ofthe fans
Is the hardware status ofthe fans normal?A. YesB. No
Checking thecleanness of the airfilter of theMA5600T cabinet
Is the air filter of thecabinet clean?A. YesB. No
Checking thecleanness of the airfilter of theMA5603T subrack
Is the air filter of thesubrack clean?A. YesB. No
Checking the battery Is the battery normal?A. YesB. No
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Maintenance Item Checklist Exception Description Operator
Checking theappearance of theMA5600T cabinet
Are the appearance,door, and the lock of thecabinet normal?A. YesB. No
Tools, instruments,and documentation
Exception recordedand handling
Known anomalies
Reviewing record
4.3 Unexpected Fault Handling Record
Table 4-3 Unexpected fault handling record of the MA5600T/MA5603TSite name: __________________ Date (YYYY-MM-DD): __________________
Occurrence time Handling time
Person on duty: Handled by:
Fault type:
Main control systemTransmission systemEnvironment monitoring:l Fan environment monitoring unitl ESC environment monitoring unit
ADSL serviceSHDSL serviceVDSL2 serviceGPON serviceMulticast serviceOthers
Fault source:
Customer complaintFound during routine maintenance
Alarm systemOthers
Fault description (information about the time when the fault occurs and software version):
Handling methods and results:
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4.4 Office Data Modification Record
Table 4-4 Office data modification record of the MA5600T/MA5603T
Date Modifiedby
Modification Reasons for Modification
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About This DocumentContentsFiguresTables1 Overview1.1 Basic Principles of the Maintenance1.2 Maintenance Recommendations for the Third-party Device1.3 How to Obtain Technical Support from Huawei
2 Tasks and Periods of Routine Maintenance3 Field Maintenance Guide3.1 Checking the Ground of the Device3.2 Checking the Sensor3.3 Checking the Hardware Status of the Fans3.4 Cleaning the Air Filter of the MA5600T Cabinet3.5 Cleaning the Air Filter of the MA5603T Subrack3.6 Checking the Battery3.7 Checking the MA5600T Cabinet Surface
4 Device Routine Maintenance Records4.1 Remote Maintenance Record4.2 Field Maintenance Record4.3 Unexpected Fault Handling Record4.4 Office Data Modification Record