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

RRU3931E

V100R011C10

Site Maintenance Guid

Issue Draft A

Date 2016-03-30

HUAWEI TECHNOLOGIES CO., LTD.

No part of this document may be reproduced or transmitted in any form or by any means without prior written

consent 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.

Notice

The purchased products, services and features are stipulated by the contract made between Huawei and the

customer. All or part of the products, services and features described in this document may not be within the

purchase 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

representations of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in the

preparation of this document to ensure accuracy of the contents, but all statements, information, and

recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

Bantian, Longgang

Shenzhen 518129

People's Republic of China

Website: http://www.huawei.com

Email: support@huawei.com

Issue Draft A (2016-03-30) Huawei Proprietary and Confidential

Contents

1 RRU3931E Site Maintenance Guide.......................................................................................... 1

1.1 Changes in RRU3931E Site Maintenance Guide........................................................................................................... 3

1.2 Turning On or Off Indicators..........................................................................................................................................3

1.2.1 Turning On Indicators..................................................................................................................................................3

1.2.2 Turning Off Indicators................................................................................................................................................. 3

1.3 Powering On or Off a RRU3931E..................................................................................................................................3

1.3.1 Powering On a RRU3931E..........................................................................................................................................3

1.3.2 Powering Off a RRU3931E.........................................................................................................................................5

1.4 Replacing a RRU3931E..................................................................................................................................................5

1.5 Replacing an Optical Module......................................................................................................................................... 8

RRU3931E

Site Maintenance Guid Contents

Issue Draft A (2016-03-30) Huawei Proprietary and Confidential

1 RRU3931E Site Maintenance Guide

Introduction

This document describes routine maintenance items for a RRU3931E, such as power-on and

power-off operations. It also explains how to replace the components and modules.

Product Version

The following table lists the product versions related to this document.

Product Name Solution Version Product Version

RRU3931E lSRAN11.1 and later

versions

lRAN18.1 and later

versions

leRAN11.1 and later

versions

V100R011C10 and later versions

Intended Audience

This document is intended for:

lSystem engineers

lSite maintenance engineers

Organization

1.1 Changes in RRU3931E Site Maintenance Guide1.1 Changes in RRU3931E Site

Maintenance Guide

This section describes the changes in RRU3931E Site Maintenance Guide.

1.2 Turning On or Off Indicators1.2 Turning On or Off Indicators

Indicators on the RRU3931E can be turned on or off.

RRU3931E

Site Maintenance Guid 1 RRU3931E Site Maintenance Guide

Issue Draft A (2016-03-30) Huawei Proprietary and Confidential

1.3 Powering On or Off a RRU3931E1.3 Powering On or Off a RRU3931E

The indicator status of a RRU3931E must be observed following a power-on to determine its

running status. Normal power-off can be used to power off a RRU3931E.

1.4 Replacing a RRU3931E1.4 Replacing a RRU3931E

RRU3931Es employ modular design and faulty ones must be replaced promptly. Replacing a

RRU3931E interrupts all ongoing services carried by it.

1.5 Replacing an Optical Module1.5 Replacing an Optical Module

An optical module implements photoelectric conversion, enabling optical transmission

between a RRU3931E and other devices. Before replacing an optical module, disconnect the

fiber optic cable from the optical module. The disconnection interrupts transmission of optical

signals.

1.1 Changes in RRU3931E Site Maintenance Guide

This section describes changes in RRU3931E Site Maintenance Guide.

1.2 Turning On or Off Indicators

Indicators on the RRU3931E can be turned on or off.

1.3 Powering On or Off a RRU3931E

The indicator status of a RRU3931E must be observed following a power-on to determine its

running status. Normal power-off can be used to power off a RRU3931E.

1.4 Replacing a RRU3931E

RRU3931Es employ modular design and faulty ones must be replaced promptly. Replacing a

RRU3931E interrupts all ongoing services carried by it.

1.5 Replacing an Optical Module

An optical module implements photoelectric conversion, enabling optical transmission

between a RRU3931E and other devices. Before replacing an optical module, disconnect the

fiber optic cable from the optical module. The disconnection interrupts transmission of optical

signals.

RRU3931E

Site Maintenance Guid 1 RRU3931E Site Maintenance Guide

Issue Draft A (2016-03-30) Huawei Proprietary and Confidential

1.1 Changes in RRU3931E Site Maintenance Guide

This section describes changes in RRU3931E Site Maintenance Guide.

Draft A (2016-03-30)

This is a draft.

1.2 Turning On or Off Indicators

Indicators on the RRU3931E can be turned on or off.

1.2.1 Turning On Indicators

Indicators on a RRU3931E may need to be turned on before routine maintenance is

performed.

Procedure

Instruct the network operator to run the SET INDICATORSW command on the RRU3931E

to 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 Indicators

After installation or maintenance is completed, indicators on a RRU3931E can be turned off

as required.

Procedure

Instruct the network operator to run the SET INDICATORSW command on the RRU3931E

to turn off the indicators.

Configuration example: SET INDICATORSW: INDICATORSWITCH=OFF;

The installation or maintenance personnel can locally observe that all the indicators except the

WIFI indicator are off.

1.3 Powering On or Off a RRU3931E

The indicator status of a RRU3931E must be observed following a power-on to determine its

running status. Normal power-off can be used to power off a RRU3931E.

1.3.1 Powering On a RRU3931E

This section describes how to power on a RRU3931E and determine its running status by its

indicator status.

RRU3931E

Site Maintenance Guid 1 RRU3931E Site Maintenance Guide

Issue Draft A (2016-03-30) Huawei Proprietary and Confidential

Prerequisites

lThe RRU3931E and its cables have been installed.

lThe input voltage of the RRU3931E ranges from 110 V AC to 220 V AC, and the

frequency ranges from 50 Hz to 60 Hz.

Context

NOTICE

After a RRU3931E is unpacked, power it on within 24 hours. If the RRU3931E is powered

off for maintenance, restore power to it within 24 hours.

Procedure

Step 1 Power on the RRU3931E.

DANGER

Do 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 the

indicator status.

Table 1-1 RRU3931E indicator status

If... Then...

The RUN indicator blinks (on for 1s and off

for 1s), the ALM indicator is off, and the

RRU3931E is running correctly

End the power-on check task.

Any other indicator status is observed The RRU3931E is faulty. Rectify the faults,

and go to Step 1

NOTE

lCheck the status of indicators on all cascaded RRU3931Es in cascading networking.

lA RRU3931E takes about 3 minutes to complete the startup procedure, during which the

indicator status is negligible.

lDuring a startup, a RRU3931E reads and writes the flash memory and therefore the

indicators blinking quickly may blink irregularly for 1s to 2s, which does not affect

services.

----End

RRU3931E

Site Maintenance Guid 1 RRU3931E Site Maintenance Guide

Issue Draft A (2016-03-30) Huawei Proprietary and Confidential

1.3.2 Powering Off a RRU3931E

This section describes how to power off a RRU3931E.

Procedure

Step 1 Switch off the external power supply equipment for the RRU3931E.

----End

1.4 Replacing a RRU3931E

RRU3931Es employ modular design and faulty ones must be replaced promptly. Replacing a

RRU3931E interrupts all ongoing services carried by it.

Prerequisites

lTools and materials, such as electrostatic discharge (ESD) gloves, torque wrench, and

M10 hex key screwdriver, are ready.

lThe RRU3931E to be replaced has been confirmed, and a new RRU3931E has been

prepared.

lYou have obtained site visit permission.

Procedure

Step 1 Ask the network operator to perform the following preparations for a RRU3931E

replacement:

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, see

RRU3931E Commissioning Guide.

4. Copy the configuration file and required software package to a TF card or a laptop where

the LMT has been installed.

NOTICE

Do 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.

NOTICE

Take proper ESD protection measures, for example, wear ESD gloves, to prevent electrostatic

damage to the RRU3931E or its electronic components.

RRU3931E

Site Maintenance Guid 1 RRU3931E Site Maintenance Guide

Issue Draft A (2016-03-30) Huawei Proprietary and Confidential

Step 3 Put on ESD gloves.

Step 4 Record the horizontal angle and vertical angle of the RRU3931E. Pay attention to the

direction.

Step 5 Record cable connection positions on the bottom and side maintenance cavities of the

RRU3931E.

Step 6 Remove the cables on the RRU3931E bottom and side maintenance cavities from external

devices.

When removing an RF jumper, hold tightly the metal part (in the red dotted circle in Figure

1-1) of the Smart-type N male connector and pull it down with proper force. See Figure 1-1.

Figure 1-1 Removing an RF jumper

Step 7 Use an M10 hex key screwdriver to remove the angle adjusting screw on the top of the

RRU3931E attachment plate. Push the RRU3931E and its attachment plate upward out of the

angle adjusting mounting bracket. See Figure 1-2.

NOTICE

When demounting a RRU3931E, hold the handles tight and gently lift the RRU3931E to

prevent it from falling.

RRU3931E

Site Maintenance Guid 1 RRU3931E Site Maintenance Guide

Issue Draft A (2016-03-30) Huawei Proprietary and Confidential

Figure 1-2 Demounting a RRU3931E

Step 8 Install a new RRU3931E and adjust the horizontal and vertical angles to be the same as those

recorded in Step 3. Use the M10 hex key screwdriver to torque the angle adjusting screw on

the top to 28 N·m.

Step 9 Connect all the cables on the new RRU3931E and seal the vacant ports with waterproof

rubber plugs.

Step 10 Power on the new RRU3931E by following instructions provided in 1.3.1 Powering On a

RRU3931E"1.3.1 Powering On a RRU3931E."

Step 11 Check the operating status of the new RRU3931E by its indicator status. For the meanings of

the 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 of

the following methods:

lUsing the LMT

–On the Upgrade Software tab page, select Download Configuration File and

Download Version Software to download the configuration file and software

package. Select Activate Configuration File and Activate Version Software to

activate the configuration file and software package. After the activation is

completed, the RRU3931E automatically restarts and runs the new software. For

details, see LMT User Guide.

–Check that no alarm is generated on the new RRU3931E. For details, see LMT User

Guide.

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.

RRU3931E

Site Maintenance Guid 1 RRU3931E Site Maintenance Guide

Issue Draft A (2016-03-30) Huawei Proprietary and Confidential

–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.

----End

Follow-up Procedure

lPlace 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 Module

An optical module implements photoelectric conversion, enabling optical transmission

between a RRU3931E and other devices. Before replacing an optical module, disconnect the

fiber optic cable from the optical module. The disconnection interrupts transmission of optical

signals.

Prerequisites

lThe type and number of optical modules to be replaced are confirmed, and new optical

modules are ready.

lTools and materials, such as ESD gloves, M10 Phillips screwdrivers, ESD box or ESD

bag, are ready.

Context

lOptical 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 the

faulty optical module, inserting a new optical module, connecting the fiber optic cable to

the new module, and waiting for the link on the Ethernet optical port to resume. The

whole process takes about 5 minutes.

Procedure

Step 1 Put on ESD gloves.

NOTICE

Take proper ESD protection measures, for example, wear ESD gloves, to prevent electrostatic

damage to the boards, modules, or electronic components.

RRU3931E

Site Maintenance Guid 1 RRU3931E Site Maintenance Guide

Issue Draft A (2016-03-30) Huawei Proprietary and Confidential

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 opened

because the RRU3931E is installed on a wall with large-angle adjustment, perform the

following 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 optical

module.

NOTICE

Do 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 module

is 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.

NOTE

The 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 cavity

covers.

Step 9 Power on the new RRU3931E by following instructions provided in 1.3.1 Powering On a

RRU3931E"1.3.1 Powering On a RRU3931E."

Step 10 Check the transmission of FE/GE signals by the indicator status. For the meanings of the

indicator status, see section "Ports and Indicators" in RRU3931E Hardware Description.

Step 11 Take off the ESD gloves and pack up all the tools.

----End

Follow-up Procedure

lPlace the replaced optical module into the ESD box or bag. Then, place the ESD box or

bag 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.

RRU3931E

Site Maintenance Guid 1 RRU3931E Site Maintenance Guide

Issue Draft A (2016-03-30) Huawei Proprietary and Confidential

Huawei Technologies RRU3931E Remote Radio Unit User Manual Site Maintenance Guid

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

Contents

user manual rru3931e site maintenance guid

Navigation menu

Namespaces

Views

Navigation