Huawei Technologies RRU3931E Remote Radio Unit User Manual Site Maintenance Guid

Huawei Technologies Co.,Ltd Remote Radio Unit Site Maintenance Guid

user manual rru3931e site maintenance guid

RRU3931EV100R011C10Site Maintenance GuidIssue Draft ADate 2016-03-30HUAWEI TECHNOLOGIES CO., LTD.
Copyright © Huawei Technologies Co., Ltd. 2016. 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 respectiveholders. 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 orrepresentations of 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 a warranty of any kind, express or implied. Huawei Technologies Co., Ltd.Address: Huawei Industrial BaseBantian, LonggangShenzhen 518129People's Republic of ChinaWebsite: http://www.huawei.comEmail: support@huawei.comIssue Draft A (2016-03-30) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.i
Contents1 RRU3931E Site Maintenance Guide.......................................................................................... 11.1 Changes in RRU3931E Site Maintenance Guide........................................................................................................... 31.2 Turning On or Off Indicators..........................................................................................................................................31.2.1 Turning On Indicators..................................................................................................................................................31.2.2 Turning Off Indicators................................................................................................................................................. 31.3 Powering On or Off a RRU3931E..................................................................................................................................31.3.1 Powering On a RRU3931E..........................................................................................................................................31.3.2 Powering Off a RRU3931E.........................................................................................................................................51.4 Replacing a RRU3931E..................................................................................................................................................51.5 Replacing an Optical Module......................................................................................................................................... 8RRU3931ESite Maintenance Guid ContentsIssue Draft A (2016-03-30) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.ii
1 RRU3931E Site Maintenance GuideIntroductionThis document describes routine maintenance items for a RRU3931E, such as power-on andpower-off operations. It also explains how to replace the components and modules.Product VersionThe following table lists the product versions related to this document.Product Name Solution Version Product VersionRRU3931E lSRAN11.1 and laterversionslRAN18.1 and laterversionsleRAN11.1 and laterversionsV100R011C10 and later versions Intended AudienceThis document is intended for:lSystem engineerslSite maintenance engineersOrganization1.1 Changes in RRU3931E Site Maintenance Guide1.1 Changes in RRU3931E SiteMaintenance GuideThis section describes the changes in RRU3931E Site Maintenance Guide.1.2 Turning On or Off Indicators1.2 Turning On or Off IndicatorsIndicators on the RRU3931E can be turned on or off.RRU3931ESite Maintenance Guid 1 RRU3931E Site Maintenance GuideIssue Draft A (2016-03-30) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.1
1.3 Powering On or Off a RRU3931E1.3 Powering On or Off a RRU3931EThe indicator status of a RRU3931E must be observed following a power-on to determine itsrunning status. Normal power-off can be used to power off a RRU3931E.1.4 Replacing a RRU3931E1.4 Replacing a RRU3931ERRU3931Es employ modular design and faulty ones must be replaced promptly. Replacing aRRU3931E interrupts all ongoing services carried by it.1.5 Replacing an Optical Module1.5 Replacing an Optical ModuleAn optical module implements photoelectric conversion, enabling optical transmissionbetween a RRU3931E and other devices. Before replacing an optical module, disconnect thefiber optic cable from the optical module. The disconnection interrupts transmission of opticalsignals.1.1 Changes in RRU3931E Site Maintenance GuideThis section describes changes in RRU3931E Site Maintenance Guide.1.2 Turning On or Off IndicatorsIndicators on the RRU3931E can be turned on or off.1.3 Powering On or Off a RRU3931EThe indicator status of a RRU3931E must be observed following a power-on to determine itsrunning status. Normal power-off can be used to power off a RRU3931E.1.4 Replacing a RRU3931ERRU3931Es employ modular design and faulty ones must be replaced promptly. Replacing aRRU3931E interrupts all ongoing services carried by it.1.5 Replacing an Optical ModuleAn optical module implements photoelectric conversion, enabling optical transmissionbetween a RRU3931E and other devices. Before replacing an optical module, disconnect thefiber optic cable from the optical module. The disconnection interrupts transmission of opticalsignals.RRU3931ESite Maintenance Guid 1 RRU3931E Site Maintenance GuideIssue Draft A (2016-03-30) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.2
1.1 Changes in RRU3931E Site Maintenance GuideThis section describes changes in RRU3931E Site Maintenance Guide.Draft A (2016-03-30)This is a draft.1.2 Turning On or Off IndicatorsIndicators on the RRU3931E can be turned on or off.1.2.1 Turning On IndicatorsIndicators on a RRU3931E may need to be turned on before routine maintenance isperformed.ProcedureInstruct the network operator to run the SET INDICATORSW command on the RRU3931Eto turn on the indicators.Configuration example: SET INDICATORSW: INDICATORSWITCH=ON;The installation or maintenance personnel can locally observe the indicator status.1.2.2 Turning Off IndicatorsAfter installation or maintenance is completed, indicators on a RRU3931E can be turned offas required.ProcedureInstruct the network operator to run the SET INDICATORSW command on the RRU3931Eto turn off the indicators.Configuration example: SET INDICATORSW: INDICATORSWITCH=OFF;The installation or maintenance personnel can locally observe that all the indicators except theWIFI indicator are off.1.3 Powering On or Off a RRU3931EThe indicator status of a RRU3931E must be observed following a power-on to determine itsrunning status. Normal power-off can be used to power off a RRU3931E.1.3.1 Powering On a RRU3931EThis section describes how to power on a RRU3931E and determine its running status by itsindicator status.RRU3931ESite Maintenance Guid 1 RRU3931E Site Maintenance GuideIssue Draft A (2016-03-30) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.3
PrerequisiteslThe RRU3931E and its cables have been installed.lThe input voltage of the RRU3931E ranges from 110 V AC to 220 V AC, and thefrequency ranges from 50 Hz to 60 Hz.ContextNOTICEAfter a RRU3931E is unpacked, power it on within 24 hours. If the RRU3931E is poweredoff for maintenance, restore power to it within 24 hours.ProcedureStep 1 Power on the RRU3931E.DANGERDo not look into optical modules without eye protection after the RRU3931E is powered on.Step 2 Wait for 3 to 5 minutes, and observe the indicator status. Then, take actions based on theindicator status.Table 1-1 RRU3931E indicator statusIf... Then...The RUN indicator blinks (on for 1s and offfor 1s), the ALM indicator is off, and theRRU3931E is running correctlyEnd the power-on check task.Any other indicator status is observed The RRU3931E is faulty. Rectify the faults,and go to Step 1 NOTElCheck the status of indicators on all cascaded RRU3931Es in cascading networking.lA RRU3931E takes about 3 minutes to complete the startup procedure, during which theindicator status is negligible.lDuring a startup, a RRU3931E reads and writes the flash memory and therefore theindicators blinking quickly may blink irregularly for 1s to 2s, which does not affectservices.----EndRRU3931ESite Maintenance Guid 1 RRU3931E Site Maintenance GuideIssue Draft A (2016-03-30) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.4
1.3.2 Powering Off a RRU3931EThis section describes how to power off a RRU3931E.ProcedureStep 1 Switch off the external power supply equipment for the RRU3931E.----End1.4 Replacing a RRU3931ERRU3931Es employ modular design and faulty ones must be replaced promptly. Replacing aRRU3931E interrupts all ongoing services carried by it.PrerequisiteslTools and materials, such as electrostatic discharge (ESD) gloves, torque wrench, andM10 hex key screwdriver, are ready.lThe RRU3931E to be replaced has been confirmed, and a new RRU3931E has beenprepared.lYou have obtained site visit permission.ProcedureStep 1 Ask the network operator to perform the following preparations for a RRU3931Ereplacement:1. Block all the cells served by the RRU3931E to be replaced.–Run the BLK CELL command if the RRU3931E works in LTE mode.–Run the BLK ULOCELL command if the RRU3931E works in UMTS mode.2. Change the SN to that of the new RRU3931E.3. Upload a configuration file for the new RRU3931E over FTP. For details, seeRRU3931E Commissioning Guide.4. Copy the configuration file and required software package to a TF card or a laptop wherethe LMT has been installed.NOTICEDo not touch the RRU3931E that is just powered off until it cools down.Step 2 Switch off the external power supply equipment for the RRU3931E to be replaced.NOTICETake proper ESD protection measures, for example, wear ESD gloves, to prevent electrostaticdamage to the RRU3931E or its electronic components.RRU3931ESite Maintenance Guid 1 RRU3931E Site Maintenance GuideIssue Draft A (2016-03-30) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.5
Step 3 Put on ESD gloves.Step 4 Record the horizontal angle and vertical angle of the RRU3931E. Pay attention to thedirection.Step 5 Record cable connection positions on the bottom and side maintenance cavities of theRRU3931E.Step 6 Remove the cables on the RRU3931E bottom and side maintenance cavities from externaldevices.When removing an RF jumper, hold tightly the metal part (in the red dotted circle in Figure1-1) of the Smart-type N male connector and pull it down with proper force. See Figure 1-1.Figure 1-1 Removing an RF jumperStep 7 Use an M10 hex key screwdriver to remove the angle adjusting screw on the top of theRRU3931E attachment plate. Push the RRU3931E and its attachment plate upward out of theangle adjusting mounting bracket. See Figure 1-2.NOTICEWhen demounting a RRU3931E, hold the handles tight and gently lift the RRU3931E toprevent it from falling.RRU3931ESite Maintenance Guid 1 RRU3931E Site Maintenance GuideIssue Draft A (2016-03-30) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.6
Figure 1-2 Demounting a RRU3931EStep 8 Install a new RRU3931E and adjust the horizontal and vertical angles to be the same as thoserecorded in Step 3. Use the M10 hex key screwdriver to torque the angle adjusting screw onthe top to 28 N·m.Step 9 Connect all the cables on the new RRU3931E and seal the vacant ports with waterproofrubber plugs.Step 10 Power on the new RRU3931E by following instructions provided in 1.3.1 Powering On aRRU3931E"1.3.1 Powering On a RRU3931E."Step 11 Check the operating status of the new RRU3931E by its indicator status. For the meanings ofthe indicator status, see section "Ports and Indicators" in RRU3931E Hardware Description.Step 12 Download the configuration file and software package to the new RRU3931E using either ofthe following methods:lUsing the LMT–On the Upgrade Software tab page, select Download Configuration File andDownload Version Software to download the configuration file and softwarepackage. Select Activate Configuration File and Activate Version Software toactivate the configuration file and software package. After the activation iscompleted, the RRU3931E automatically restarts and runs the new software. Fordetails, see LMT User Guide.–Check that no alarm is generated on the new RRU3931E. For details, see LMT UserGuide.lUsing a TF card. For details, see RRU3931E Commissioning Guide.Step 13 Request the network operator to perform the following operations:1. Unblock all cells served by the RRU3931E.RRU3931ESite Maintenance Guid 1 RRU3931E Site Maintenance GuideIssue Draft A (2016-03-30) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.7
–Run the UBL CELL command if the RRU3931E works in LTE mode.–Run the UBL ULOCELL command if the RRU3931E works in UMTS mode.2. Manually synchronize inventory data.3. Manually change the RRU3931E status from TESTING to NORMAL.Step 14 Take off the ESD gloves and pack up all the tools.----EndFollow-up ProcedurelPlace the replaced RRU3931E into an ESD bag. Then, place the ESD bag into a foam-padded carton or the packing box of the new RRU3931E.lFill in the fault form with the detail information of the replaced RRU3931E.lContact the local Huawei office to handle the faulty RRU3931E.1.5 Replacing an Optical ModuleAn optical module implements photoelectric conversion, enabling optical transmissionbetween a RRU3931E and other devices. Before replacing an optical module, disconnect thefiber optic cable from the optical module. The disconnection interrupts transmission of opticalsignals.PrerequisiteslThe type and number of optical modules to be replaced are confirmed, and new opticalmodules are ready.lTools and materials, such as ESD gloves, M10 Phillips screwdrivers, ESD box or ESDbag, are ready.ContextlOptical modules are inserted in FE/GE2 and FE/GE3 ports of the RRU3931E.lOptical modules are hot-swappable.lOptical module replacement involves disconnecting the fiber optic cable, removing thefaulty optical module, inserting a new optical module, connecting the fiber optic cable tothe new module, and waiting for the link on the Ethernet optical port to resume. Thewhole process takes about 5 minutes.ProcedureStep 1 Put on ESD gloves.NOTICETake proper ESD protection measures, for example, wear ESD gloves, to prevent electrostaticdamage to the boards, modules, or electronic components.RRU3931ESite Maintenance Guid 1 RRU3931E Site Maintenance GuideIssue Draft A (2016-03-30) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.8
Step 2 Switch off the external power supply equipment for the RRU3931E.Step 3 Opening the maintenance cavity covers. If the maintenance cavity covers cannot be openedbecause the RRU3931E is installed on a wall with large-angle adjustment, perform thefollowing operations:1. Record the adjusted angle for the RRU3931E.2. Adjust the horizontal angle of the RRU3931E.3. Open the maintenance cavity covers.Step 4 Record the connection positions of the faulty optical module and fiber optic cable.Step 5 Press the bulge on the optical connector and remove the connector from the faulty opticalmodule.NOTICEDo not look into the disconnected fiber optic cable or optical module without eye protection.Step 6 Lower the puller on the faulty optical module, and then pull the puller until the optical moduleis removed from the RRU3931E.Step 7 According to the label on the faulty optical module, prepare a new one of the same type.Install the new optical module into the FE/GE optical port on the RRU3931E.NOTEThe new optical module must match the rate at the optical FE/GE port.Step 8 Insert the optical connector into the optical module, and closing the maintenance cavitycovers.Step 9 Power on the new RRU3931E by following instructions provided in 1.3.1 Powering On aRRU3931E"1.3.1 Powering On a RRU3931E."Step 10 Check the transmission of FE/GE signals by the indicator status. For the meanings of theindicator status, see section "Ports and Indicators" in RRU3931E Hardware Description.Step 11 Take off the ESD gloves and pack up all the tools.----EndFollow-up ProcedurelPlace the replaced optical module into the ESD box or bag. Then, place the ESD box orbag into a foam-padded carton or the packing box of the new optical module.lFill in the fault form with the detail information of the replaced optical module.lContact the local Huawei office to handle the faulty optical module.RRU3931ESite Maintenance Guid 1 RRU3931E Site Maintenance GuideIssue Draft A (2016-03-30) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.9

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