f01d500 maintenance guide(01).pdf

F01D500

Maintenance Guide

Issue 01

Date 2010-02-11

Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. For anyassistance, please contact our local office or company headquarters.

Huawei Technologies Co., Ltd.Address: Huawei Industrial Base

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Website: http://www.huawei.com

Email: [email protected]

Copyright © Huawei Technologies Co., Ltd. 2010. 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 the property 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 Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

http://www.huawei.com

mailto:[email protected]

Contents

About This Document.....................................................................................................................1

1 Field Maintenance......................................................................................................................1-11.1 Checking the Cabinet Status...........................................................................................................................1-31.2 Checking the Waterproof Status.....................................................................................................................1-41.3 Checking the Grounding Status.......................................................................................................................1-41.4 Checking the Noise of the Cabinet..................................................................................................................1-51.5 Checking the Sensor........................................................................................................................................1-61.6 Checking the Battery.......................................................................................................................................1-7

2 Parts Replacement......................................................................................................................2-12.1 Replacing the Door Lock of an Outdoor Cabinet............................................................................................2-32.2 Replacing the Illuminator................................................................................................................................2-52.3 Replacing the Fan of a Heat Exchanger..........................................................................................................2-72.4 Replacing the Lightning Arrester..................................................................................................................2-102.5 Replacing the Rectifier Module....................................................................................................................2-122.6 Replacing the Monitoring Module................................................................................................................2-142.7 Replacing the Temperature and Humidity Sensor........................................................................................2-162.8 Replacing the Smoke Sensor.........................................................................................................................2-192.9 Replacing the Battery....................................................................................................................................2-20

3 Rectifying Common Faults.......................................................................................................3-13.1 Failure to Open the Cabinet Door Lock..........................................................................................................3-23.2 Condensation in the Cabinet...........................................................................................................................3-23.3 Abnormal Temperature Alarm of the Cabinet................................................................................................3-33.4 Excessive Noise of the Cabinet.......................................................................................................................3-53.5 Environment Monitoring Fault Alarm Generated by the Cabinet...................................................................3-5

F01D500Maintenance Guide Contents

Issue 01 (2010-02-11) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

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Figures

Figure 2-1 Appearance of the cabinet door lock..................................................................................................2-3Figure 2-2 Removing the door lock.....................................................................................................................2-4Figure 2-3 Connection of the illuminator cable...................................................................................................2-6Figure 2-4 Power sockets of the heat exchanger..................................................................................................2-8Figure 2-5 Removing the inner fan component....................................................................................................2-9Figure 2-6 Removing the outer fan component..................................................................................................2-10Figure 2-7 Removing the lightning arrester.......................................................................................................2-12Figure 2-8 Replacing the rectifier module..........................................................................................................2-14Figure 2-9 Replacing the monitoring module....................................................................................................2-15Figure 2-10 Removing the temperature and humidity sensor............................................................................2-17Figure 2-11 Removing the temperature and humidity sensor............................................................................2-18Figure 2-12 Removing the smoke sensor...........................................................................................................2-20Figure 2-13 Removing the battery......................................................................................................................2-22Figure 3-1 Appearance of the door lock...............................................................................................................3-2

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Tables

Table 3-1 Temperature parameters.......................................................................................................................3-4Table 3-2 LED status of the heat exchanger.........................................................................................................3-4Table 3-3 List of names of the ports of the sensor transfer box displayed on the host........................................3-6

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About This Document

Intended AudienceThis document provides the field maintenance guide and troubleshooting guide to the F01D500,and introduces the methods for replacing the parts. This document helps the intended audienceto perform the field maintenance, replace the parts, and rectify the faults on the F01D500.

This document is intended for:

l System maintenance 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.

F01D500Maintenance Guide About This Document


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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.

Update HistoryUpdates between document issues are cumulative. Therefore, the latest document issue containsall updates made in previous issues.

Updates in Issue 01 (2010-02-11)This is the first release.

Update HistoryF01D500

Maintenance Guide

2 Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

Issue 01 (2010-02-11)

1 Field Maintenance

About This Chapter

This topic describes the field maintenance items for the device, and the checking items, referencecriteria, and exception handling methods of these items.

CAUTIONTo ensure that a cabinet can run outdoors stably for a long time, comply with the followingprinciples during field maintenance:l Prevent rain or snow from falling onto the inner surface of the device (including the front

panel of the subscriber board), from falling onto cables, or falling into apertures when thecabinet door is open.

l Do not open the cabinet door in heavy dust. If dust enters the cabinet, the service life of thecomponents will be affected seriously.

l It is recommended to open the cabinet door to maintain the device only when the temperatureis in the range from -5°C to +35°C. In this way, the device can be protected from dewcondensation or impact of extreme temperature.

l Exercise caution when opening the cabinet door in case of strong wind. A strong wind maycause the cabinet door to be opened or closed fiercely. This is dangerous to the maintenanceengineer and may damage the device. Use the cabinet support pin to fix the cabinet door ina specified position, to avoid injury and damage.

1.1 Checking the Cabinet StatusTo ensure that the cabinet can run stably for a long time, you are recommended to check thecabinet status regularly.1.2 Checking the Waterproof StatusTo ensure that the devices inside the cabinet are waterproofed, you are recommended to checkthe waterproof measures of the cabinet.1.3 Checking the Grounding StatusProper grounding is necessary to avoid lightning strike and to resist interference. To ensure thatall components in the cabinet are properly grounded, you are recommended to check that theground connections are all complete.

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1.4 Checking the Noise of the CabinetTo ensure that the cabinet runs in the normal state and does not cause excessive noise to theneighborhood, you are recommended to check for any levels of excessive noise regularly.

1.5 Checking the SensorTo ensure that the environment status of the cabinet can be monitored in real time, you arerecommended to check the running status of the sensor regularly.

1.6 Checking the BatteryTo ensure that the battery status and connections are normal, you are recommended to check thebattery regularly.

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1.1 Checking the Cabinet StatusTo ensure that the cabinet can run stably for a long time, you are recommended to check thecabinet status regularly.

MaintenancePurpose

No. Checking Item Exception Handling Method

Ensure that theappearance of thecabinet is intact.

1 Check whether there is anypaint drop, collision damage,or stain on the appearance ofthe cabinet.

Remove the stain from theappearance of the cabinet andrepaint the part where the paint isdropped. For details, seeRepairing Scratches on theCabinet in the F01D500Installation Guide.

Ensure that thecabinet door lockcan be locked andunlockedproperly.

2 Check whether the cabinetdoor lock can be locked andunlocked properly.

Replace the cabinet door lock.For details, see 2.1 Replacingthe Door Lock of an OutdoorCabinet.

Ensure that noneof metalcomponents iscorroded or rusty.

3 Check whether any metalcomponents are corroded orrusty.

If a metal component is rusty,polish the component by usingthe abrasive paper, and thenrepaint the component for anti-corrosion. Replace a componentif a large area of the componentis corroded.

Ensure that thepower systemruns in the normalstate.

4 Check the LED status of thepower system in the cabinet.LEDs of the rectifier module:l RUN: green and always on

l ALARM: yellow and off

l FAULT: red and off

LEDs of the monitoringmodule:l RUN: green; on for 1s and

off for 1s repeatedlyl ALM: red and off

Replace the rectifier module ormonitoring module of the powersystem. For details, see 2.5Replacing the RectifierModule or 2.6 Replacing theMonitoring Module.

Ensure that allcable aperturesare properlysealed.

5 Check whether all cableapertures are properly sealed,including apertures for ACpower cables, PGND cables,external subscriber cables,and optical cables.

Use the sealant to seal all cableapertures properly.



1-3

1.2 Checking the Waterproof StatusTo ensure that the devices inside the cabinet are waterproofed, you are recommended to checkthe waterproof measures of the cabinet.

MaintenancePurpose


Ensure that nowater enters thecabinet.

1 Check whether accumulatedwater or water stain existsinside the cabinet.

Clean accumulated water insidethe cabinet.

2 Check whether the door of thecabinet is properly closed.

Properly close the cabinet door.

3 Check whether the cableapertures on the MDFcompartment of the cabinet areproperly sealed with sealant.

Properly seal the cable apertureson the MDF compartment withsealant.

4 Check whether the sealing tapeon the cabinet door is damaged.

Replace the sealing tape on thecabinet door if the sealing tapedegrades or distorts.

5 Check whether the drainagehole at the bottom of thetemperature controlcompartment is blocked.

Clean the drainage hole at thebottom of the temperaturecontrol compartment.

1.3 Checking the Grounding StatusProper grounding is necessary to avoid lightning strike and to resist interference. To ensure thatall components in the cabinet are properly grounded, you are recommended to check that theground connections are all complete.

ProcedureNOTE

The lap resistance refers to the resistance between metal parts; the grounding resistance refers to the resistancebetween the device and the ground, that is, the grounding resistance of the device.

MaintenancePurpose


Ensure that the internalground cables of thecabinet are properlyconnected, theconnection points arenot loose or rusty, and

1 Checking whether theinternal ground cablesare properly connectedand whether theconnection points arerusty.

If the connections of the internalground cables are loose,reconnect the cables.


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MaintenancePurpose


the cables are intact.Ensure that the lapresistance of the groundcable is smaller than 0.1ohm.

2 Checking whether theinternal ground cablesare intact.

If the internal ground cables aredamaged, replace the cables andproperly connect the cables.Ensure that the lap resistance ofthe internal ground cable issmaller than 0.1 ohm.

3 Using the multimeterto measure thegrounding resistanceof the internal groundcable.

If the connection points are rusty,rid the rust and then properlyconnect the cables again. Ensurethat the lap resistance of theinternal ground cable is smallerthan 0.1 ohm.

Ensure that the externalPGND cables in thecabinet are properlyconnected, theconnection points arenot rusty, and the cablesare intact. Ensure thatthe groundingresistance of theexternal PGND cable issmaller than 10 ohms.

1 Checking whether theexternal PGND cablesin the cabinet areproperly connectedand whether theconnection points arerusty.

If the connections of the externalPGND cables are loose,reconnect the cables.

2 Checking whether theexternal PGND cablesare intact.

If the external PGND cables aredamaged, replace the cables andproperly connect the cables.Ensure that the resistancebetween two ends of the groundcable is smaller than 10 ohms.

3 Using a groundingresistance tester tomeasure the groundingresistance of theexternal PGND cable.

If the connection points in thecabinet are rusty, rid the rust andthen properly connect the cablesagain. Ensure that the resistancebetween two ends of the groundcable is smaller than 10 ohms.

1.4 Checking the Noise of the CabinetTo ensure that the cabinet runs in the normal state and does not cause excessive noise to theneighborhood, you are recommended to check for any levels of excessive noise regularly.



1-5

MaintenancePurpose

Checking Item Exception Handling Method

Check the noiseof the cabinet:The noise withinfive meters doesnot cause anydiscomfort.

Directly listen to thenoise of the runningcabinet.

Check whether the fan on the heat exchanger runsin the normal state. If the fan is normal, use abrush to remove the dust from the fan on the heatexchanger. If the fan is abnormal, replace the fanin time. For the details, see 2.3 Replacing theFan of a Heat Exchanger.

1.5 Checking the SensorTo ensure that the environment status of the cabinet can be monitored in real time, you arerecommended to check the running status of the sensor regularly.

Procedure

MaintenancePurpose


Ensure that thetemperature andhumidity sensorruns in the normalstate: Thetemperature andhumidity inside thecabinet can bequeried through themaintenanceterminal, and thequeriedtemperature andhumidity areconsistent with theactual temperatureand humidity.

1 Checking whether thecables of the temperatureand humidity sensor areproperly connected.

If the connections of the cables oftemperature and humidity sensor areloose, reconnect the cables.

2 Checking whether thecables of the temperatureand humidity sensor areaged or damaged.

If the cables of the temperature andhumidity sensor are aged ordamaged, replace the cables.

3 Querying thetemperature andhumidity inside thecabinet.

If the preceding methods cannotsolve the problem, replace thetemperature and humidity sensor.For details, see 2.7 Replacing theTemperature and HumiditySensor.

Ensure that thesmoke sensorworks in thenormal state: Ifthere is smokeinside the cabinet,you can query therelevant alarmfrom themaintenanceterminal.

1 Check the LED status ofthe smoke sensor.

If the LED is abnormal (in thenormal state, the red monitoringLED blinks every 3-6s), proceed tothe following steps.

2 Checking whether thecables of the smokesensor are properlyconnected.

If the connections of the cables ofsmoke sensor are loose, reconnectthe cables.


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MaintenancePurpose


3 Checking whether thecables of the smokesensor are aged ordamaged.

If the cables of the smoke sensor areaged or damaged, replace the cables.

4 Generate smoke besidethe smoke sensor andcheck whether a smokealarm is generated insidethe cabinet.

If the preceding methods cannotsolve the problem, replace thesmoke sensor. For details, see 2.8Replacing the Smoke Sensor.

1.6 Checking the BatteryTo ensure that the battery status and connections are normal, you are recommended to check thebattery regularly.

ProcedureMaintenance Purpose Checking Item Exception Handling Method

Ensure that the shell ofthe battery is intact andthat the battery does notappear to be distorted,bulging, or leaking.

Checking theappearance of thebattery

If the shell of the battery is damaged or thebattery appears to be distorted, bulging, orleaking, replace the battery in time. For thedetailed procedure, see 2.9 Replacing theBattery.

CAUTIONConsidering the battery life, you are recommended to telnet to the main device to perform thedischarging test for the battery every six months after the battery is used for three years. Youcan also query the maintenance data about the battery discharging duration through the NMS.If the discharging duration is shorter than 30 minutes, immediately replace the battery on site.



1-7

2 Parts Replacement

About This Chapter

When performing device maintenance or parts upgrade, you may need to replace parts to ensurethat the device runs in the normal state.

Context

CAUTIONl Take ESD measures before the replacement.

l During the replacement, prevent any metallic objects from causing short circuits. Forexample, tools that are placed improperly or screws that fall into the shelf accidentally cancause short circuits.

l When replacing parts, be sure to take electrical and mechanical safety precautions.

2.1 Replacing the Door Lock of an Outdoor CabinetReplace the lock of the outdoor cabinet when the lock fails to work.

2.2 Replacing the IlluminatorThe illuminator is fixed to the battery compartment cover of the cabinet. Replace the illuminatorwhen it fails to work.

2.3 Replacing the Fan of a Heat ExchangerTo ensure that the system runs stably in the long term, replace the fan of the heat exchangerimmediately when the fan is faulty.

2.4 Replacing the Lightning ArresterWhen any LED of the lightning arrester turns red, it indicates that the protection function of thelightning arrester deteriorates. In this case, replace the lightning arrester immediately. When thelightning arrester is faulty, the system switches from the AC power supply to the battery powersupply. Therefore, the services are not interrupted.

2.5 Replacing the Rectifier ModuleReplace a rectifier module if it fails to upgrade or work.

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2.6 Replacing the Monitoring ModuleReplace the monitoring module when it needs upgrading or fails to work.

2.7 Replacing the Temperature and Humidity SensorThe temperature and humidity sensor is located at the upper part of the device compartment ofthe cabinet. The temperature and humidity inside the cabinet can be monitored remotely througha maintenance terminal. Replace the temperature and humidity sensor when the temperature andhumidity sensor is faulty (for example, the monitored temperature and humidity differ muchfrom those of the actual environment). Replacing the temperature and humidity sensor does notaffect the system services.

2.8 Replacing the Smoke SensorThe smoke sensor is located at the upper part of the device compartment of the cabinet. Smokeinside the cabinet can be monitored remotely through a maintenance terminal. An alarm isgenerated if smoke exists inside the cabinet. Remove the smoke sensor when it is faulty.Replacing the smoke sensor does not affect the system services.

2.9 Replacing the BatteryReplace the battery when it is faulty or when the discharge time tested during maintenance isshorter than 30 minutes.

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2.1 Replacing the Door Lock of an Outdoor CabinetReplace the lock of the outdoor cabinet when the lock fails to work.

Context

The device compartment and temperature control compartment of the cabinet adopt theHW-2801 lock, and the cable distribution compartment adopts the HW-2801B lock. The twodoor locks have the same structure; therefore, their replacement methods are the same. Figure2-1 shows the appearance of the HW-2801 door lock.

Figure 2-1 Appearance of the cabinet door lock

Recommended Toolsl ESD gloves

l Phillips screwdriver



2-3

PreparationsPerform the following protective and preparatory operations before the replacement:

l Ensure that the type of the new door lock is the same as the type of the door lock to bereplaced.

l Take out the new part and check that the components of the new part are intact.

Procedure

Step 1 Wear the ESD gloves.

Step 2 Open the cabinet door whose door lock is to be replaced, and use the Phillips screwdriver toloosen the screw that fixes the bolt on the inner side of the cabinet door, as shown in Figure2-2 (1).

Step 3 Remove the washers that fix the bolt one by one, and record the original installation sequenceof the washers.

Step 4 Move the lock rod so that the lock rod is basically separated from the lock base. as shown inFigure 2-2 (2).

Figure 2-2 Removing the door lock

Step 5 Use the Phillips screwdriver to loosen the two screws anticlockwise from the cover plate of thedoor lock, as shown in Figure 2-2 (3).

Step 6 Remove the door lock base from the outer side of the cabinet door.

Step 7 Take out the new part.

Step 8 Apply waterproof glue to the place where the base of the new door lock is in contact with thecabinet door. Then, install the new door lock in the position of the original door lock.

Step 9 Install the cover plate of the door lock from the inner side of the cabinet door. Use the Phillipsscrewdriver to fasten the two screws clockwise to the cover plate.

Step 10 Install the lock rod back to the original position.

Step 11 Install the washers in the original sequence to fix the bolt.


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Step 12 Use the Phillips screwdriver to fasten the screw to fix the bolt.

----End

Postrequisite1. Lock and unlock the door lock with by using the key to check whether the door lock works

properly.

2. Dispose of the replaced part properly.

2.2 Replacing the IlluminatorThe illuminator is fixed to the battery compartment cover of the cabinet. Replace the illuminatorwhen it fails to work.

Precautionsl To facilitate operations, you are recommended to perform replacement during the day.

l To ensure the continuous running of services, do not turn off the LOAD1 control switchof the EPS75-4815AF power system.

l Before any DC hot-line operation, adopt strict measures for insulation of tools and humanbody to prevent short circuit accident.

Recommended Toolsl ESD wrist strap or ESD gloves

l Flat-head screwdriver

Preparations

Perform the following protective and preparatory operations before the replacement:

l Check that the type of the new part is the same as that of the part to be replaced.

l Take out the new part from the packing case and ensure that the components of the newpart are not damaged or detached.

l Record the positions of the cables, and check whether the labels on the cables are correct,clear, and neat. If the marking of the labels is illegible, prepare and affix new labels toprevent incorrect connection.

Procedure

Step 1 Wear an ESD wrist strap, and connect its grounding end to the ESD jack on the cabinet; or wearthe ESD gloves.

Step 2 Open the door of the device compartment.

Step 3 Turn off the switch on the illuminator.

Step 4 Use the flat-head screwdriver to remove the illuminator cable on LOAD1 of the EPS75-4815AFpower system. Figure 2-3 shows the connection of the illuminator cable.



2-5

DANGERThis is a DC hot-line operation. You must adopt strict measures for insulation of tools and humanbody.

Figure 2-3 Connection of the illuminator cable

Step 5 Remove the illuminator.

Step 6 Make sure that the switch on the illuminator is turned off.

Step 7 Install the new illuminator.

Step 8 Connector the illuminator cable according to the original cable position, and then use the flat-head screwdriver to fasten the screws.

DANGERThis is a DC hot-line operation. You must adopt strict measures for insulation of tools and humanbody.

Step 9 Turn on the switch on the illuminator. If the illuminator is on, it indicates that the replacementis successful.

Step 10 Close the door of the device compartment.

Step 11 Dispose of the replaced part properly.

----End


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2.3 Replacing the Fan of a Heat ExchangerTo ensure that the system runs stably in the long term, replace the fan of the heat exchangerimmediately when the fan is faulty.

Recommended ToolsPhillips screwdriver

Precautionsl Only professional engineers are permitted to perform maintenance on the heat exchanger.

l During the replacement, keep the door of the device compartment open so that thetemperature inside the device compartment is normal.

l The cabinet must be sealed properly. When performing maintenance, check that the sealingtapes are intact. If the sealing tapes are damaged, water leakage or dew condensation mayoccur in the cabinet.

Preparationsl Open the door of the temperature control compartment and the door of the device

compartment.l Record the positions of the cables, and check whether the labels on the cables are correct,

clear, and neat. If the marking of the labels is illegible, prepare and affix new labels toprevent incorrect connection.

l Turn off the AC power input and DC power input of the heat exchanger.

NOTE

The power input sockets of the heat exchanger are located on the inner side of the heat exchanger.To perform maintenance, open the door of the device compartment in the middle of the outdoorcabinet first, as shown in Figure 2-4.



2-7

Figure 2-4 Power sockets of the heat exchanger

Procedure

Step 1 Use the Phillips screwdriver to loosen the screws from the inner fan component on the outer sideof the heat exchanger, as shown in Figure 2-5.

Step 2 Remove the inner fan component carefully and turn it over.

NOTE

The inner fan component does not have any handle. Hold the component with one hand when removing it. Theinner fan is fastened to the fan component. Be careful with the cable that is connected to the inner fan and avoidbreaking the cable by accident when turning over the fan component.

Step 3 Remove the old fan from the fan component, and then install the new inner fan to the fancomponent.

Step 4 Turn over the inner fan component back to the original position. Align the screw holes on thefan component with the screw holes on the heat exchanger, and then use the Phillips screwdriverto fasten the screws.


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Figure 2-5 Removing the inner fan component

The inner side refers to the side of the heat exchanger that faces the device compartment. Theouter side refers to the side of the heat exchanger that faces outwards when you open the doorof the temperature control compartment. The inner fan is located in the upper part of the heatexchanger. The inner fan is used for internal air ventilation and does not circulate with the airfrom the outside. Therefore, it accumulates less dust. The outer fan is located in the lower partof the heat exchanger. The outer fan is used for external air ventilation and circulates with theair from the outside. Therefore, it accumulates more dust.

Step 5 Use the Phillips screwdriver to loosen the screws from the outer fan component on the outer sideof the heat exchanger. Remove the outer fan component, as shown in Figure 2-6.

Step 6 Remove the old fan from the fan component, and then install the new inner fan to the fancomponent.

Step 7 Turn over the outer fan component back to the original position. Align the screw holes on thefan component with the screw holes on the heat exchanger. Then, use the Phillips screwdriverto fasten the screws.



2-9

Figure 2-6 Removing the outer fan component

----End

Postrequisitel Turn on the power inputs of the heat exchanger to check whether the heat exchanger works

in the normal state.NOTE

After the heat exchanger runs for 30 seconds, listen to the sound of the fans that are rotating. If thesound is continuous and steady, it indicates that the maintenance is successful. If the sound isdiscontinuous and unsteady, check whether the maintenance is performed by strictly following thepreceding procedure. If the problem persists, contact Huawei technical support.

l Close the door of the temperature control compartment and the door of the devicecompartment.

2.4 Replacing the Lightning ArresterWhen any LED of the lightning arrester turns red, it indicates that the protection function of thelightning arrester deteriorates. In this case, replace the lightning arrester immediately. When thelightning arrester is faulty, the system switches from the AC power supply to the battery powersupply. Therefore, the services are not interrupted.


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Precautionsl Only engineers who have been specially trained and certificated are allowed to replace the

lightning arrester.l Take electrical safety precautions when replacing the lightning arrester.




l Socket wrench





Procedure


Step 2 Open the door of the cable distribution compartment.

Step 3 Turn off the mains input switch of the cabinet.

Step 4 Remove the lightning arrester.1. Use the flat-head screwdriver to loosen the screw on the cover of the lightning arrester, as

shown in Figure 2-7 (1).2. Use the key to open the cover and remove the cover.3. Use the screwdriver to remove all external cables connected to the lightning arrester, as

shown in Figure 2-7 (2).4. Use the socket wrench to loosen the four nuts on the lightning arrester, as shown in Figure

2-7 (3). Remove the lightning arrester.



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Figure 2-7 Removing the lightning arrester

Step 5 Install the new lightning arrester back to the original position and fasten the nuts.

Step 6 Connect the external cables back to the lightning arrester according to the original positions anduse the screwdriver to fasten the screws.

Step 7 Turn on the mains input switch of the cabinet.

Step 8 Turn on the MCB in the lightning arrester.

----End

Postrequisitel If all LEDs of the lightning arrester are on and green, it indicates that the lightning arrester

works in the normal state.l If the RUN LED on the rectifier module of the EPS75-4815AF power system is always on,

it indicates that the AC output of the lightning arrester is normal.l Install the cover of the lightning arrester, fasten the screws, and use the key to lock the

cover.l Close the door of the cable distribution compartment.

l Dispose of the replaced part properly.

2.5 Replacing the Rectifier ModuleReplace a rectifier module if it fails to upgrade or work.

Precautionsl Replacing the rectifier module does not interrupt the services. If the power of the remaining

rectifier modules fails to support the running of current services, switch the power supplyfrom the AC to the battery.

l If the replacement affects the running of the current network to a great extent, perform thereplacement when the device carries minimum traffic, for example, between 00:00 and06:00.


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l If the power of the remaining rectifier modules cannot support the running of currentservices, ensure that the service data is saved before the replacement.

l Take ESD measures before the replacement.

l During the replacement, prevent any metallic objects from causing short circuits. Forexample, tools that are placed improperly or screws that fall into the shelf accidentally cancause short circuits.

l When inserting the rectifier module, align the rectifier module with the rectifier moduletracks and insert the rectifier module along the tracks so that the rectifier module is in propercontact with the backplane.

l When replacing the rectifier module, apply proper force to avoid damaging the part.



l ESD bag

PreparationsNOTE

l If the device has a backup power supply, make the hardware-related preparations.

l If the device has no backup power supply, perform the save operations before the replacement beforethe system is completely powered off.

l Perform the following operations through the CLI.

1. Enter the privilege mode, and run the save command to save the current database fileand configuration file.huawei>enablehuawei#save

2. Run the TFTP software, and run the backup data command to back up the databasefile. For example, to back up the database file to the server with the IP address10.10.10.1 and name the file datafile.dat , do as follows:huawei#backup data tftp 10.10.10.1 datafile.dat

3. Run the backup configuration command to back up the configuration file. Forexample, to back up the configuration file to the server with the IP address 10.10.10.1and name the file config.txt , do as follows:huawei#backup configuration tftp 10.10.10.1 config.txt

4. Run the backup language command to back up the language file. For example, toback up the language file to the server with the IP address 10.10.10.1 and name thefile langfile.res, do as follows:huawei#backup language general tftp 10.10.10.1 langfile.res

l Perform the following hardware-related operations on site (for field maintenanceengineers):

1. Ensure that the backup power supply works in the normal state.2. Take out the new part from the packing case and ensure that the components of the

new part are not damaged or detached.

Procedure




2-13

Step 2 Use the Phillips screwdriver to loosen the captive screw on the front panel, as shown in Figure2-8 (1).

Step 3 Hold the handle bar of the rectifier module, as shown in Figure 2-8 (2).

Figure 2-8 Replacing the rectifier module

Step 4 Pull one third of the rectifier module out of the power system, support the bottom of the rectifiermodule, and then pull the entire rectifier module out of the power system.

Step 5 Check the type of the removed rectifier module, and ensure that it is the same as the type of thenew rectifier module.

Step 6 Align the new rectifier module with the slot and push it slowly into the slot.

NOTE

If the front panels of the monitoring module and the rectifier module are on the same plane, it indicatesthat the rectifier module is completely inserted.

Step 7 Use the Phillips screwdriver to fasten the captive screw on the front panel.

----End

Postrequisite1. Check whether the replacement is successful by checking the LED status of the new rectifier

module. When the RUN LED is on and the ALM LED and the FAULT LED are off, itindicates that the new rectifier module is working in the normal state.

2. Place the removed part in the ESD bag. Affix a label to the ESD bag, and record the nameof the part, the company bar code, and the symptom of the fault on the label.

2.6 Replacing the Monitoring ModuleReplace the monitoring module when it needs upgrading or fails to work.




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l ESD bag

Preparations1. Take ESD measures before the replacement.2. Record the positions of the cables, and check whether the labels on the cables are marked

correctly, clearly and neatly. If the marking of the labels is illegible, prepare and affix newlabels to prevent incorrect connection.

3. Take out the new part from the packing case and ensure that the components of the newpart are not damaged or detached.

4. View the silk screen on the front panel of the monitoring module and ensure that the typeof the new monitoring module is the same as that of the monitoring module to be replaced.

Procedure


Step 2 Use the Phillips screwdriver to loosen the captive screw on the front panel, as shown in Figure2-9 (1).

Step 3 Remove the cables from the monitoring module.

Step 4 Hold the handle bar of the monitoring module and pull the monitoring module out of the powersystem, as shown in Figure 2-9 (2).

Figure 2-9 Replacing the monitoring module

Step 5 Set the DIP switches correctly on the new monitoring module according to the DIP switchsettings of the replaced monitoring module.

Step 6 Align the new monitoring module with the slot and insert it into the power system.

NOTE

If the front panels of the monitoring module and the rectifier module are on the same plane, it indicatesthat the rectifier module is completely inserted.



2-15

Step 7 Use the Phillips screwdriver to fasten the captive screw on the front panel.

Step 8 Connect the cable to the new part according to the original position.

----End

Postrequisitel Perform the following hardware-related operations on site (for field maintenance

engineers):

1. Check the LEDs on the monitoring module. If the RUN LED is green and is on for 1sand off for 1s repeatedly, it indicates that the monitoring module is working in thenormal state.

2. Place the removed part in the ESD bag. Affix a label to the ESD bag, and record thename of the part, the company bar code, and the symptom of the fault on the label.

l Perform the following operations through the CLI.

1. In global config mode, run the display emu command to check whether theenvironment monitoring unit (EMU) is normal. If the result is Normal, it indicatesthat the EMU is normal.huawei(config)#display emu

2. In the Power4875 mode, run the display power alarm command to check whetherany alarm related to the power system occurs. If the query result is Normal, it indicatesthat the power system is normal. For example, to query the alarm related to the powersystem, do as follows:huawei(config)#interface emu 0huawei(config-if-power4875l-0)#display power alarm

2.7 Replacing the Temperature and Humidity SensorThe temperature and humidity sensor is located at the upper part of the device compartment ofthe cabinet. The temperature and humidity inside the cabinet can be monitored remotely througha maintenance terminal. Replace the temperature and humidity sensor when the temperature andhumidity sensor is faulty (for example, the monitored temperature and humidity differ muchfrom those of the actual environment). Replacing the temperature and humidity sensor does notaffect the system services.

Context

There are two types of temperature and humidity sensors with the same function. The actuallydelivered temperature and humidity sensor prevails.




Preparations

Perform the following protective and preparatory operations before the replacement:


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l Check that the type of the new temperature and humidity sensor is the same as that of thetemperature and humidity sensor to be replaced.

l Check that the components of the new part are not damaged or detached.


Procedure


Step 2 Open the front door of the device compartment.

Step 3 The replacement methods for the two types of temperature and humidity sensors are different.

l Replace the temperature and humidity sensor as shown in Figure 2-10 as follows: Use yourhand or a tool (such as the flat-head screwdriver) to press the buckle on the front panel ofthe temperature and humidity sensor, and then remove the temperature and humidity sensor.

Figure 2-10 Removing the temperature and humidity sensor

l Replace the temperature and humidity sensor as shown in Figure 2-11 as follows:

1. Use the flat-head screwdriver to loosen the screw of the temperature and humiditysensor, as shown in Figure 2-11 (1). Then, remove the cover.



2-17

2. Use the flat-head screwdriver to loosen the screw that fixes the cable, as shown inFigure 2-11 (2). Then, remove the cable.

3. Pull carefully the buckles around the bottom plate of the temperature and humiditysensor outward and then remove the PCB, as shown in Figure 2-11 (3).

4. Remove the temperature and humidity sensor.

Figure 2-11 Removing the temperature and humidity sensor

Step 4 Install the new temperature and humidity sensor.

----End

Postrequisite1. After the temperature and humidity sensor is replaced, if the temperature and humidity

displayed on the maintenance terminal is close to the actual data, it indicates that thereplacement is successful.

2. Dispose of the replaced part properly.


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2.8 Replacing the Smoke SensorThe smoke sensor is located at the upper part of the device compartment of the cabinet. Smokeinside the cabinet can be monitored remotely through a maintenance terminal. An alarm isgenerated if smoke exists inside the cabinet. Remove the smoke sensor when it is faulty.Replacing the smoke sensor does not affect the system services.

Recommended ToolsESD wrist strap or ESD gloves


l Check that the type of the new smoke sensor is the same as that of the smoke sensor to bereplaced.

l Check that the components of the new part are not damaged or detached.

Procedure


Step 2 Open the front door of the device compartment, and then loosen the smoke sensor anticlockwiseto remove it, as shown in Figure 2-12.



2-19

Figure 2-12 Removing the smoke sensor

Step 3 Fasten the new smoke sensor clockwise to install it back to the smoke sensor base.

----End

Postrequisite1. Check the LED of the smoke sensor: The red LED in the monitoring state should blink

every 3-6s.2. Dispose of the replaced part properly.

2.9 Replacing the BatteryReplace the battery when it is faulty or when the discharge time tested during maintenance isshorter than 30 minutes.

ContextThe F01D500 cabinet can be configured with two sets of 75 AH or 92 AH batteries. For theconnection method, see the corresponding label affixed on the front door of the cabinet. Thefollowing considers the 92 AH battery as an example.


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Precautionsl Only engineers who have been specially trained and certificated are permitted to replace

the battery.l Comply with the operation guide to avoid electric shock.

l Metal installation tools, such as the wrench, must be wrapped with insulation tapes. Anyshort circuit can seriously injure the human body and damage the device.

l Ensure that the polarity position of each battery is correct. The connection between batteriesor between batteries and the device must be firm and correct.

l Turn on the MCB of the battery only after you make sure that the connection is correct.


l Adjustable wrench






Procedure


Step 2 Turn off the BATT MCB of the battery in the EPS75-4815AF power system.

Step 3 Use the Phillips screwdriver to loosen the screw on the cover for batteries, and then remove thecover.

Step 4 Remove the battery.1. Remove the connector of the battery interconnection cable, as shown in Figure 2-13 (1).2. Remove the battery from the battery compartment.3. Remove the protective cap from the battery, as shown in Figure 2-13 (2).4. Use the adjustable wrench to remove all cables from the terminals of the battery, as shown

in Figure 2-13 (3).



2-21

Figure 2-13 Removing the battery

Step 5 Install the new battery.1. Use the adjustable wrench to connect the battery interconnection cable back to the terminal

of the battery.2. Install the protective cap on the battery.3. Place the new battery back into the battery compartment according to the original position.4. Install interconnection cables between batteries according to the original positions.

Step 6 Use the multimeter to measure the open circuit voltage of the battery set. Ensure that the voltagebetween the blue cable (negative pole) and the black cable (positive pole) is within the normalrange of -45 V to -53 V.

Step 7 Connect cables between the battery and the power system according to the original positions.

Step 8 Turn on the BATT MCB of the battery.

Step 9 Dispose of the replaced part properly.

----End


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3 Rectifying Common Faults

About This Chapter

This topic describes how to rectify common faults in the cabinet maintenance.

3.1 Failure to Open the Cabinet Door LockThis topic describes how to troubleshoot the fault when the cabinet door lock cannot be opened.

3.2 Condensation in the CabinetThis topic describes how to troubleshoot the fault when condensation (visible dew can be foundon the internal wall and top of the cabinet) occurs in the cabinet

3.3 Abnormal Temperature Alarm of the CabinetThis topic describes how to troubleshoot the fault when the cabinet generates an abnormaltemperature alarm.

3.4 Excessive Noise of the CabinetThis topic describes how to troubleshoot the fault when the noise of the cabinet is excessive.

3.5 Environment Monitoring Fault Alarm Generated by the CabinetThis topic describes how to rectify the fault when the cabinet generates an environmentmonitoring fault alarm.

F01D500Maintenance Guide 3 Rectifying Common Faults


3-1

3.1 Failure to Open the Cabinet Door LockThis topic describes how to troubleshoot the fault when the cabinet door lock cannot be opened.

Procedure

Step 1 Check whether the key matches the cabinet door lock: The device compartment and thetemperature control compartment adopt the key to the A-type lock, and the MDF compartmentadopts the key to the B-type lock. In addition, the original keys delivered with the cabinet mustbe used.

If the key does not match the lock, use the matching key: The device compartment and thetemperature control compartment of the cabinet use the HW-2801 lock, and the MDFcompartment uses the HW-2801B lock. The keys of these two types of locks are different, asshown in Figure 3-1.

Figure 3-1 Appearance of the door lock

Step 2 Check whether the door lock is rusty or damaged.

l If the door lock is normal, flap the cabinet door with a strong force. Use the key to open thedoor lock, and insert a flat-head screwdriver into the gap of the lock handle, and then pry itoutward (be sure to repaint the cabinet). At the same time, rotate the key in the OPENdirection. In this way, the cabinet door can be opened.

l If the door lock is rusty or damaged, pry the door lock and replace it with a new one.

----End

3.2 Condensation in the CabinetThis topic describes how to troubleshoot the fault when condensation (visible dew can be foundon the internal wall and top of the cabinet) occurs in the cabinet

3 Rectifying Common FaultsF01D500

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Fault Analysisl After installation, the cabinet is not powered on and is placed in the outdoor or damp

environment. In the long-term condition of heat and humidity, a pressure difference isformed between the inside and the outside of the cabinet. Water vapor condenses insidethe cabinet, thus causing condensation at the top inside the cabinet.

l The cable apertures of the MDF compartment are not properly sealed, the sealing tap onthe cabinet is damaged, or the cabinet door is not properly closed. The rain water cannotbe drained after entering the cabinet, thus causing condensation inside the cabinet.

Procedure

Step 1 After installing the outdoor cabinet, check whether the desiccant is available inside the devicecompartment of the cabinet.

After the installing the outdoor cabinet, the field maintenance engineer takes the desiccant outof the container bag and places the desiccant inside the device compartment of the cabinet.

Step 2 When the cabinet is powered on, be sure to check whether condensation occurs inside the cabinet.

If any dew exists, deal with the dew in one of the following methods:

l Use the water-absorbing cloth to remove the dew.

l Start the heat exchanger or heat dissipation fan (if they are configured) to speed up thevaporization of the dew. Under such circumstances, do not close the cabinet door.

l If the heat exchanger or heat dissipation fan is not configured, open the door to vaporize thedew through the wind or sunlight.

WARNINGWhen wiping the dew, take certain measure to prevent the dew from entering the device.

----End

3.3 Abnormal Temperature Alarm of the CabinetThis topic describes how to troubleshoot the fault when the cabinet generates an abnormaltemperature alarm.

Procedure

Step 1 Check whether the working environment temperature of the cabinet is normal.

If the alarm is generated because the actual environment temperature is high, the followingoperations are not required.

Step 2 Check according to Table 3-1 whether the configuration parameters for system powermonitoring are appropriate.

Run the display power environment info command to query the environment humidity, runthe display power environment parameter command to query the configured environment



3-3

monitoring parameters, and run the power environment temperature command to change theupper and lower limits of the temperature alarm.

Table 3-1 Temperature parameters

4875L (EPMU02) UA5000R17

UA5000R13

MA5603TV8R6

RecommendedValue

Parameter

Range

DefaultValue in

BoardSoftware

DefaultValue in

NESoftware

DefaultValue in

NESoftware

DefaultValue in

NESoftware

Highambienttemperature alarm

-50 to100°C 50°C 50°C 50°C 40°C 68°C

Lowenvironmenttemperature alarm

-50 to100°C 0°C 0°C 0°C 0°C -5°C

Step 3 After the cabinet installation, field maintenance engineers should check whether the LOAD2MCB of the power supply and the MCB of the heat exchanger are turned on, and whether theDC power cable of the heat exchanger is connected properly. If either the MCB is turned off orthe DC power cable is not connected properly, the heat exchanger cannot work normally, causingan abnormal temperature.

If the MCB is turned off or the cable is not connected properly, connect the cable properly andturn on the MCB.

Step 4 If the high-temperature alarm and power-off problem occurs, check whether the fan for the aircirculation of the heat exchanger is faulty and stops rotation, and whether the air ventilator ofthe shutter of the cabinet temperature control compartment is blocked.

l Check according to Table 3-2 whether the fans rotate in the normal state.

Table 3-2 LED status of the heat exchanger

LED Description

Power supplyLED RUN

If the green LED is always on, it indicates that the AC or DC input ofthe heat exchanger is normal.

If the green LED is on for 1s and off for 1s, it indicates that the heatexchanger works in the normal state.

If the LED is off, it indicates that the heat exchanger has no power input.

Alarm LEDAlarming

If the red LED is on, it indicates that the heat exchanger is faulty.

If the red LED is off, it indicates that the heat exchanger is normal.


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l If the cooling vent is blocked, clean it in time.

Step 5 Check whether the power of the configured boards exceeds the maximum power of the cabinet.

If the power of the configured boards exceeds the maximum power of the cabinet, configure thecabinet properly.

----End

3.4 Excessive Noise of the CabinetThis topic describes how to troubleshoot the fault when the noise of the cabinet is excessive.

Procedure

Step 1 Check on site whether the vent of the device is blocked by sundries, whether fans are damaged,and whether too much dust exists on fans and boards.l Remove the foreign object on the air exhaust vent, if any.

l Replace the fan if it is damaged.

l Remove and clean the fan and the board if too much dust is accumulated.

Step 2 Check whether any structural part around the fan is loose.

If any structural part is loose, handle it in time.

Step 3 Check whether the power of the configured boards exceeds the maximum power of the cabinet.

If the power of the configured boards exceeds the maximum power of the cabinet, configure thecabinet properly.

----End

3.5 Environment Monitoring Fault Alarm Generated by theCabinet

This topic describes how to rectify the fault when the cabinet generates an environmentmonitoring fault alarm.

Procedure

Step 1 Table 3-3 lists the line numbers of the power monitoring transfer box of the cabinet sensor andthe names displayed on the host. If any alarm is found, the field maintenance engineer determineswhich sensor generates the alarm according to Table 3-3, and then checks on site to locate thefault (abnormal temperature, damage to the device, or cabinet door being opened).



3-5

Table 3-3 List of names of the ports of the sensor transfer box displayed on the host

NameDisplayed on

the Host

DevicePort

Application in the F01D500Cabinet

Boolean ValueSetting of the

Host(0: Low Level;1: High Level)

Digital 0 JTD1 Fan monitoring board of the HABDshelf

0

Digital 1 JTD2 Fan monitoring board of the HABFshelf

0

Digital 2 JTD3 Lightning arrester 0

Digital 3 JTD4 Not connected by default; used to adda user-defined monitoring digitalparameter

0

Digital 4 JTD5 Smoke sensor 1

Digital 5 JTD6 Heat exchanger 0

Digital 6 JTD7 Door status sensor of the cabledistribution compartment

0

Door alarm JTM1 Door status of the devicecompartment and temperaturecontrol compartment

-

Wiring alarm JTP1 MDF -

Battery Tem BAT_WE Battery temperature sensor -

EnvironmentTem/EnvironmentHum

TEM-HU Temperature and humidity sensor -

Step 2 If a part is damaged, apply for a spare part for replacement.

Step 3 If the fault cannot be located or rectified, the field maintenance engineer saves and copies thealarm information displayed on the NMS, and then contacts Huawei technical support engineersfor assistance.

----End


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f01d500 maintenance guide(01).pdf

Documents

huawei trademarks

huawei proprietary

huawei industrial basebantian

cabinet status

outdoor cabinet

grounding status

waterproof status

thepurchase scope