Huawei Technologies BTS3702E-2500 WiMAX Outdoor Pico Base Station User Manual Site Maintenance Guide Draft
Huawei Technologies Co.,Ltd WiMAX Outdoor Pico Base Station Site Maintenance Guide Draft
User Manual
| Download: |  |
| Mirror Download [FCC.gov] | |
| Document ID | 1229671 |
| Application ID | tv9A4pLzlwagxovTxHemmg== |
| Document Description | User Manual |
| Short Term Confidential | No |
| Permanent Confidential | No |
| Supercede | No |
| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 39.54kB (494215 bits) |
| Date Submitted | 2010-01-19 00:00:00 |
| Date Available | 2010-04-17 00:00:00 |
| Creation Date | 2009-12-22 17:25:44 |
| Producing Software | Antenna House PDF Output Library 2.4.0 (Windows) |
| Document Lastmod | 2010-01-11 15:10:47 |
| Document Title | Site Maintenance Guide (Draft) |
| Document Creator | XSL Formatter V4.1 R1 (4,1,2006,1206) for Windows |
| Document Author: | Huawei Technologies Co., Ltd. |
DBS3900 WiMAX
V300R002
Site Maintenance Guide
Issue
01
Date
2009-11-30
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. For any
assistance, please contact our local office or company headquarters.
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
Copyright © Huawei Technologies Co., Ltd. 2009. All rights reserved.
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 the property 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 the warranty of any kind, express or implied.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
DBS3900 WiMAX
Site Maintenance Guide (Draft)
Contents
Contents
About This Document.....................................................................................................................1
1 Preparations for Site Maintenance.........................................................................................1-1
2 Tasks of Routine Hardware Maintenance.............................................................................2-1
2.1 Maintenance of Power Supply System and Grounding System of the BTS3702E.........................................2-2
2.2 Maintenance of BTS3702E Main Equipment.................................................................................................2-2
2.3 Maintenance of Cables....................................................................................................................................2-3
3 Powering On and Powering Off the BTS3702E....................................................................3-1
3.1 Powering On the BTS3702E...........................................................................................................................3-2
3.2 Powering Off the BTS3702E..........................................................................................................................3-4
4 Replacing the BTS3702E Modules..........................................................................................4-1
5 Replacing the Optical Modules ..............................................................................................5-1
6 Replacing the Power Modules ................................................................................................6-1
7 Replacing the BTS3702E Cables..............................................................................................7-1
7.1 Replacing the Power Cables of the BTS3702E...............................................................................................7-2
7.2 Replacing the Signal Cables of the BTS3702E...............................................................................................7-3
7.3 Replacing the Transmission Cables of the BTS3702E...................................................................................7-4
7.3.1 Replacing the Ethernet Cables...............................................................................................................7-4
7.3.2 Replacing the Optical Fibers..................................................................................................................7-5
7.4 Replacing the RF Jumpers of the BTS3702E..................................................................................................7-6
Issue 01 (2009-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
DBS3900 WiMAX
Site Maintenance Guide (Draft)
Tables
Tables
Table 2-1 Maintenance tasks for the power supply system and grounding system of the BTS3702E.................2-2
Table 2-2 Maintenance tasks of the BTS3702E...................................................................................................2-3
Table 2-3 Maintenance items for cables...............................................................................................................2-3
Table 3-1 Meanings of the BTS3702E indicators................................................................................................3-2
Issue 01 (2009-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
iii
DBS3900 WiMAX
Site Maintenance Guide (Draft)
About This Document
About This Document
Overview
After completing the deployment and acceptance test of the BTS3702E, Huawei conducts
routine maintenance to ensure that the BTS3702E operates in its optimum capacity.
The document describes the tasks of the routine hardware maintenance of the BTS3702E,
including the maintenance of the power supply system and grounding system, the maintenance
of the BTS3702E main equipment, and the maintenance of the cables. In addition, the document
provides guidance for the replacement of modules and cables.
Version
The following table lists the product version related to this document.
Product Name
Version
BTS3702E
V300R002
Intended Audience
This document is intended for:
System engineers
Site maintenance personnel
Change History
Issue 01 (2009-11-30)
Version
Change History
01(2009-11-25)
This is the initial release.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
DBS3900 WiMAX
Site Maintenance Guide (Draft)
Organization
Organization
1 Preparations for Site Maintenance
The preparations for the maintenance of the BTS3702E site include obtaining site information,
selecting maintenance tasks, and preparing maintenance tools and spare parts.
2 Tasks of Routine Hardware Maintenance
The tasks of the routine hardware maintenance of the BTS3702E include the maintenance of the
power supply system and grounding system, the maintenance of the main equipment of the
BTS3702E, and the maintenance of the cables.
3 Powering On and Powering Off the BTS3702E
When maintaining the BTS3702E, you need to power on and power off the BTS3702E. During
power-on, check the power supply voltage of the BTS3702E and the states of the indicators on
the BTS3702E. Power off the BTS3702E on a regular basis or in an emergency according to
actual requirements.
4 Replacing the BTS3702E Modules
The BTS3702E is an integrated outdoor micro BTS of Huawei WiMAX Micro. Replacing the
BTS3702E modules disrupts all services carried by this BTS.
5 Replacing the Optical Modules
The optical module provides an interface for photoelectric conversion, which enables the
transmission between the BTS3702E and other equipment through the optical fiber. It is used
to connect the ASN-GW or cascading connections between the BTSs. Remove the optical fibers
first when replacing the optical modules. This disrupts the transmission signal.
6 Replacing the Power Modules
The power module is used to shift the power level to enable the transmission between the
BTS3702E and other equipment through Ethernet cables. It is used to connect the ASN-GW or
cascading connections between the BTSs. Remove the Ethernet cables first when replacing the
power modules. This disrupts the transmission signal .
7 Replacing the BTS3702E Cables
When the BTS3702E cables are faulty, you need to replace them promptly. The cables that can
be replaced are power cables, signal cables, transmission cables, and RF jumpers.
Conventions
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol
Description
Indicates a hazard with a high level of risk, which if not
avoided,will result in death or serious injury.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 01 (2009-11-30)
DBS3900 WiMAX
Site Maintenance Guide (Draft)
Organization
Symbol
Description
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, which if not
avoided,could result in equipment damage, data loss,
performance degradation, or unexpected results.
Indicates a tip that may help you solve a problem or save
time.
Provides additional information to emphasize or supplement
important points of the main text.
General Conventions
The general conventions that may be found in this document are defined as follows.
Convention
Description
Times New Roman
Normal paragraphs are in Times New Roman.
Boldface
Names of files, directories, folders, and users are in
boldface. For example, log in as user root.
Italic
Book titles are in italics.
Courier New
Examples of information displayed on the screen are in
Courier New.
Command Conventions
The command conventions that may be found in this document are defined as follows.
Issue 01 (2009-11-30)
Convention
Description
Boldface
The keywords of a command line are in boldface.
Italic
Command arguments are in italics.
[]
Items (keywords or arguments) in brackets [ ] are optional.
{ x | y | ... }
Optional items are grouped in braces and separated by
vertical bars. One item is selected.
[ x | y | ... ]
Optional items are grouped in brackets and separated by
vertical bars. One item is selected or no item is selected.
{ x | y | ... }*
Optional items are grouped in braces and separated by
vertical bars. A minimum of one item or a maximum of all
items can be selected.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
DBS3900 WiMAX
Site Maintenance Guide (Draft)
Organization
Convention
Description
[ x | y | ... ]*
Optional items are grouped in brackets and separated by
vertical bars. Several items or no item can be selected.
GUI Conventions
The GUI conventions that may be found in this document are defined as follows.
Convention
Description
Boldface
Buttons, menus, parameters, tabs, window, and dialog titles
are in boldface. For example, click OK.
Multi-level menus are in boldface and separated by the ">"
signs. For example, choose File > Create > Folder.
Keyboard Operations
The keyboard operations that may be found in this document are defined as follows.
Format
Description
Key
Press the key. For example, press Enter and press Tab.
Key 1+Key 2
Press the keys concurrently. For example, pressing Ctrl+Alt
+A means the three keys should be pressed concurrently.
Key 1, Key 2
Press the keys in turn. For example, pressing Alt, A means
the two keys should be pressed in turn.
Mouse Operations
The mouse operations that may be found in this document are defined as follows.
Action
Description
Click
Select and release the primary mouse button without moving
the pointer.
Double-click
Press the primary mouse button twice continuously and
quickly without moving the pointer.
Drag
Press and hold the primary mouse button and move the
pointer to a certain position.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 01 (2009-11-30)
DBS3900 WiMAX
Site Maintenance Guide (Draft)
1 Preparations for Site Maintenance
Preparations for Site Maintenance
The preparations for the maintenance of the BTS3702E site include obtaining site information,
selecting maintenance tasks, and preparing maintenance tools and spare parts.
Obtaining the Site Information
Before maintaining the BTS3702E site, familiarize yourself with the following information
about the BTS:
Unsolved faults and alarms of the site
Hardware configuration of the site
Local environment
Spare parts
Selecting Maintenance Items
According to the specific condition of the BTS3702E site, you should select proper maintenance
tasks, including:
Maintaining the power supply system and grounding system of the BTS3702E
Maintaining the BTS3702E main equipment
Maintaining the cables of the BTS3702E
Arranging for Tools and Spare Parts
Choose the corresponding tools and spare parts according to the site information and
maintenance tasks of the BTS3702E.
The site maintenance tools are:
The frequency test devices include a signal generator, a spectrum analyzer, and
corresponding connectors and cables.
The power test devices are used to test and analyze the output power of the BTS3702E.
The power meter is often used.
The antenna and feeder test equipment is used to locate faults and to measure the standing
wave ratio, return loss, and cable insertion loss. The SiteMaster is often used.
Other materials
Issue 01 (2009-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
1-1
DBS3900 WiMAX
Site Maintenance Guide (Draft)
1 Preparations for Site Maintenance
–
Other tools and materials are the multimeter, ESD wrist strap or gloves, screwdriver,
ESD box or bag, dust-free cloth, wrench, tape, diagonal plier, and plier.
–
Ethernet cables for commissioning.
–
Local maintenance terminal.
–
Spare parts.
NOTE
Arrange for the tools and components according to the actual conditions of the specific replacement.
1-2
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 01 (2009-11-30)
DBS3900 WiMAX
Site Maintenance Guide (Draft)
2 Tasks of Routine Hardware Maintenance
Tasks of Routine Hardware Maintenance
About This Chapter
The tasks of the routine hardware maintenance of the BTS3702E include the maintenance of the
power supply system and grounding system, the maintenance of the main equipment of the
BTS3702E, and the maintenance of the cables.
2.1 Maintenance of Power Supply System and Grounding System of the BTS3702E
This section describes the maintenance tasks, maintenance frequency, operation guidance, and
reference standard of the power supply system and grounding system of the BTS3702E.
2.2 Maintenance of BTS3702E Main Equipment
The maintenance tasks of the BTS3702E equipment include checking the surface of the
equipment, cleanness of the equipment, and indicators.
2.3 Maintenance of Cables
The maintenance tasks of cables include checking the signal cables, the Ethernet cables, the
optical fibers, the connectors, and the sockets.
Issue 01 (2009-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
2-1
DBS3900 WiMAX
Site Maintenance Guide (Draft)
2 Tasks of Routine Hardware Maintenance
2.1 Maintenance of Power Supply System and Grounding
System of the BTS3702E
This section describes the maintenance tasks, maintenance frequency, operation guidance, and
reference standard of the power supply system and grounding system of the BTS3702E.
Table 2-1 lists the maintenance tasks of the power system and grounding system of the
BTS3702E.
Table 2-1 Maintenance tasks for the power supply system and grounding system of the
BTS3702E
Item
Frequency
Operation
Standard
Power cable
Monthly
Carefully check the
connections of power
cables.
The power cables are
not aging, and there
is no corrosion on the
joints.
Voltage
Monthly
Measure the voltage
of the power supply
using a multimeter.
Operating voltage
range: -36 V DC to
-57 V DC.
PGND cable
Monthly
Check whether the
PGND cable and
ground bar are
connected securely.
The joints are secure
and corrosion free.
Earth resistance
Monthly
Measure the earth
resistance using an
electric earth
resistance tester and
record the
measurement.
The grounding
resistance is lower
than 10 ohms.
2.2 Maintenance of BTS3702E Main Equipment
The maintenance tasks of the BTS3702E equipment include checking the surface of the
equipment, cleanness of the equipment, and indicators.
Table 2-2 lists the maintenance tasks of the BTS3702E.
2-2
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 01 (2009-11-30)
DBS3900 WiMAX
Site Maintenance Guide (Draft)
2 Tasks of Routine Hardware Maintenance
Table 2-2 Maintenance tasks of the BTS3702E
Item
Frequency
Operation
Standard
Equipment surface
Quarterly
Check whether the
surface of the
equipment is
damaged and
whether the label of
the equipment is
legible.
Equipment
cleanliness
Quarterly
Check whether the
equipment is clean.
Indicators
Monthly
Check whether the
indicators on the
equipment are
functional.
For details on the
meanings of the
indicators, see 3.1
Powering On the
BTS3702E.
2.3 Maintenance of Cables
The maintenance tasks of cables include checking the signal cables, the Ethernet cables, the
optical fibers, the connectors, and the sockets.
Table 2-3 lists the maintenance items for the cables.
Table 2-3 Maintenance items for cables
Item
Frequency
Signal cables
Annually
Ethernet cables
Issue 01 (2009-11-30)
Annually
Operation
Carefully check the
connection of the
signal cables.
Carefully check the
connection of the
Ethernet cables.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Standard
The signal cables are
reliably connected.
The signal cables are
intact.
The cables can be clearly
identified through the
labels.
The Ethernet cables are
reliably connected.
The Ethernet cables are
intact.
The hubs are intact.
The cables can be clearly
identified through the
labels.
2-3
DBS3900 WiMAX
Site Maintenance Guide (Draft)
2 Tasks of Routine Hardware Maintenance
Item
Frequency
Optical fibers
Annually
RF jumper
Annually
Connectors and
sockets
2-4
Quarterly
Operation
Check the connections
of the optical fibers and
optical modules.
Carefully check the
connection of the RF
jumper.
Check whether there is
any dust or greasy dirt
on the insulators of the
connectors and
sockets.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Standard
The optical fibers are
intact and reliably
connected.
The optical modules are
clean and connected
properly.
The winding pipes for
the optical fiber are
intact.
The cables can be clearly
identified through the
labels.
The RF jumpers are
intact and reliably
connected.
The waterproof of the RF
jumper connections is
perfect.
The cables can be clearly
identified through the
labels.
The insulators are clean.
Issue 01 (2009-11-30)
DBS3900 WiMAX
Site Maintenance Guide (Draft)
3 Powering On and Powering Off the BTS3702E
Powering On and Powering Off the
BTS3702E
About This Chapter
When maintaining the BTS3702E, you need to power on and power off the BTS3702E. During
power-on, check the power supply voltage of the BTS3702E and the states of the indicators on
the BTS3702E. Power off the BTS3702E on a regular basis or in an emergency according to
actual requirements.
3.1 Powering On the BTS3702E
The power supply input of the BTS3702E is -48 V DC. After powering on the BTS3702E,
determine the working state of the BTS3702E according to the status of the indicators.
3.2 Powering Off the BTS3702E
You can power off the BTS3702E in a normal situation or in an emergency.
Issue 01 (2009-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
3-1
DBS3900 WiMAX
Site Maintenance Guide (Draft)
3 Powering On and Powering Off the BTS3702E
3.1 Powering On the BTS3702E
The power supply input of the BTS3702E is -48 V DC. After powering on the BTS3702E,
determine the working state of the BTS3702E according to the status of the indicators.
Prerequisite
The installation of the hardware and cables of the BTS3702E is finished.
The range of the power supply input of the BTS3702E is from -36 V DC to -57 V DC.
Context
CAUTION
The BTS3702E must be powered on within 24 hours after being unpacked or after being powered
off for maintenance.
Procedure
Step 1 Turn on the power switch of the BTS3702E.
DANGER
After the BTS3702E is powered on, do not look directly at the beam from the optical module
without taking the necessary eye-protection measures.
Step 2 Wait for three to five minutes and then check the status of the indicators on modules of the
BTS3702E. Table 3-1 lists the meanings of the indicators.
Table 3-1 Meanings of the BTS3702E indicators
3-2
Indicator
Color
State
Description
RUN
Green
On
There is power input, but the
board is faulty.
Off
There is no power input, or the
board is faulty.
Blinking at 4 Hz (on for
0.125s and off for 0.125s)
The board is being loaded.
Blinking at 0.5 Hz (on for
1s and off for 1s)
The board is working
properly.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 01 (2009-11-30)
DBS3900 WiMAX
Site Maintenance Guide (Draft)
Indicator
Color
State
Description
ALM
Red
On
An alarm is generated, and the
board needs to be replaced.
Blinking at 0.5 Hz (on for
1s and off for 1s)
An alarm is generated, but you
cannot determine that the
board needs to be replaced.
This alarm may be generated
by a faulty board or port.
Off
No fault.
On
The board is working
properly.
Blinking at 0.5 Hz (on for
1s and off for 1s)
The board is operating, but the
antenna port transmits no
power.
Green and on
The link is functional.
Green and blinking
Data can be transmitted and
received over the Ethernet
port.
Red and on
An alarm is generated,
indicating that an exception
occurs when the optical
module receives signals.
Off
The SFP module is not in
position or is powered off.
Green and on
The link connected to the
Ethernet port is functional.
Green and blinking
Data can be transmitted and
received over the Ethernet
port.
Red and on
An alarm is generated,
indicating that exception
occurs when the optical
module receives signals.
Off
The SFP module is not in
position or is powered off.
Off
No alarm is generated.
On
An alarm is generated on only
the A port of the antenna
subsystem.
TX_ACT
SFP0
SFP1
VSWR
Issue 01 (2009-11-30)
3 Powering On and Powering Off the BTS3702E
Green
Red and green
Red and green
Red
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
3-3
DBS3900 WiMAX
Site Maintenance Guide (Draft)
3 Powering On and Powering Off the BTS3702E
Indicator
Color
State
Description
Blinking at 4 Hz (on for
0.125s and off for 0.125s)
An alarm is generated on both
the A and B ports of the
antenna subsystem.
Blinking at 0.5 Hz (on for
1s and off for 1s)
An alarm is generated on only
the B port of the antenna
subsystem.
Step 3 Proceed with the next step according to the status of the indicator.
If...
Then...
The modules of the BTS3702E work
properly.
The power-on procedure is complete.
The BTS3702E is faulty.
Record the faulty status, turn off the power
switch, rectify the fault, and then go to Step
1.
----End
3.2 Powering Off the BTS3702E
You can power off the BTS3702E in a normal situation or in an emergency.
Procedure
Step 1 Determine the method for powering off the BTS3702E according to the actual situation.
If...
Then...
The BTS3702E needs to be powered off
Power off the BTS3702E in a normal situation
when you swap the equipment or anticipate by referring to Step 2.
a territorial power outage.
The BTS3702E needs to be powered off in Power off the BTS3702E in an emergency by
an emergency, such as fire, smoke, or water referring to Step 3.
immersion,
Step 2 Set the circuit breaker on the auxiliary power supply equipment of the BTS3702E to OFF.
Step 3 Cut off the external input power supply for the auxiliary power supply equipment of the
BTS3702E. If time permits, ensure that the circuit breaker on the auxiliary power supply
equipment of the BTS3702E is set to OFF.
----End
3-4
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 01 (2009-11-30)
DBS3900 WiMAX
Site Maintenance Guide (Draft)
4 Replacing the BTS3702E Modules
Replacing the BTS3702E Modules
The BTS3702E is an integrated outdoor micro BTS of Huawei WiMAX Micro. Replacing the
BTS3702E modules disrupts all services carried by this BTS.
Prerequisite
Check the quantity and model of the replaced BTS3702E modules. Prepare the new
BTS3702E modules.
Record the installation position of the BTS3702E modules.
Record the port positions of all the cables connected to the BTS3702E modules.
Prepare the tool kit.
Context
CAUTION
Take proper ESD prevention measures, for example, wear ESD wrist straps or gloves to prevent
boards, modules, and electronic components from being destroyed by static discharge from the
human body.
NOTE
See the BTS3702E Quick Installation Guide to install new BTS3702E modules.
Procedure
Step 1 Upload the BTS data configuration file by referring to Manually Backing Up Configuration
Data.
Step 2 Power off the BTS3702E and turn off the power switch of the external power supply of the
BTS3702E by referring to 3.2 Powering Off the BTS3702E.
Step 3 Open the cover of the cabling cavity to disconnect all the cables connected to the BTS3702E
modules and take insulation measures for the cables.
Step 4 Move the faulty BTS3702E modules and replace them by new BTS3702E modules.
Issue 01 (2009-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
4-1
DBS3900 WiMAX
Site Maintenance Guide (Draft)
4 Replacing the BTS3702E Modules
Step 5 Connect all the cables to the new BTS3702E modules and fix the cover of the cabling cavity.
Step 6 Turn on the power switch of the external power supply of the BTS3702E and power on the
BTS3702E by referring to 3.1 Powering On the BTS3702E.
Step 7 Replace the ESN number of the BTS by referring to Detecting BSs Automatically.
----End
Later Measures
Check the following items after replacing the faulty BTS3702E modules:
The BTS3702E modules are correctly installed.
All the cables are correctly connected.
The BTS3702E is operational after being powered on.
Contact the local Huawei office to handle the faulty BTS3702E modules.
4-2
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 01 (2009-11-30)
DBS3900 WiMAX
Site Maintenance Guide (Draft)
5 Replacing the Optical Modules
Replacing the Optical Modules
The optical module provides an interface for photoelectric conversion, which enables the
transmission between the BTS3702E and other equipment through the optical fiber. It is used
to connect the ASN-GW or cascading connections between the BTSs. Remove the optical fibers
first when replacing the optical modules. This disrupts the transmission signal.
Prerequisite
Check the quantity and type of the faulty optical modules and prepare new optical modules.
Record the installation position and connection points of the faulty optical modules and the
optical fibers.
The required tools and materials are ready. The tools or materials include the ESD wrist
strap or ESD gloves, and the ESD box or bag.
The optical modules are hot-swappable.
Replacing the BTS3702E optical module involves removing the optical fibers and faulty
optical modules, installing the new optical modules, connecting the optical fibers to the
optical modules, and recovering the links. The operation takes about five minutes.
Context
CAUTION
Take proper ESD prevention measures, for example, wear ESD wrist straps or gloves to
prevent boards, modules, and electronic components from being destroyed by static discharge
from the human body.
After removing the optical fibers from the optical modules, do not look directly at the optical
modules and optical fiber connectors without taking the necessary eye-protection measures.
Procedure
Step 1 Press the latch on the connector of the optical fiber connector, and then remove the connector
from the faulty optical module.
Issue 01 (2009-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
5-1
DBS3900 WiMAX
Site Maintenance Guide (Draft)
5 Replacing the Optical Modules
Step 2 Turn the ring-pull on the faulty optical module outwards. Hold the ring-pull and take the faulty
optical module out of the slot to remove it from the BTS3702E.
Step 3 Install the new optical modules in the BTS3702E.
Step 4 Connect the optical fiber connectors to the new optical modules.
Step 5 Check whether the transmission signal is recovered according to the indicators.
----End
Postrequisite
Contact the local Huawei office to handle the faulty optical modules.
5-2
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 01 (2009-11-30)
DBS3900 WiMAX
Site Maintenance Guide (Draft)
6 Replacing the Power Modules
Replacing the Power Modules
The power module is used to shift the power level to enable the transmission between the
BTS3702E and other equipment through Ethernet cables. It is used to connect the ASN-GW or
cascading connections between the BTSs. Remove the Ethernet cables first when replacing the
power modules. This disrupts the transmission signal .
Prerequisite
Check the quantity and type of the power modules. Prepare the new power modules.
Record the installation position and connection points of the faulty power modules and the
Ethernet cables.
The required tools or materials are ready. The tools or materials include the ESD wrist strap
or ESD gloves, and the ESD box or bag.
The power modules are hot-swappable.
Replacing the BTS3702E power module involves removing the Ethernet cables and faulty
power modules, installing the new power modules, connecting the Ethernet cables to the
power modules, and recovering the links. The operation takes about five minutes.
Context
CAUTION
Take proper ESD prevention measures, for example, wear ESD wrist straps or gloves to
prevent boards, modules, and electronic components from being destroyed by static discharge
from the human body.
Procedure
Step 1 Remove the Ethernet cables from the faulty power modules.
Step 2 Turn the ring-pull on the faulty power module outwards. Hold the ring-pull and take the faulty
power module out of the port to remove it from the BTS3702E.
Step 3 Install the new power modules in the BTS3702E.
Issue 01 (2009-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
6-1
DBS3900 WiMAX
Site Maintenance Guide (Draft)
6 Replacing the Power Modules
Step 4 Connect the Ethernet cables to the new power modules.
Step 5 Check whether the transmission signal is recovered according to the indicators.
----End
Postrequisite
Contact the local Huawei office to handle the faulty power module.
6-2
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 01 (2009-11-30)
DBS3900 WiMAX
Site Maintenance Guide (Draft)
7 Replacing the BTS3702E Cables
Replacing the BTS3702E Cables
About This Chapter
When the BTS3702E cables are faulty, you need to replace them promptly. The cables that can
be replaced are power cables, signal cables, transmission cables, and RF jumpers.
Context
NOTE
Contact Huawei engineers in the following conditions:
When you want to arrange for devices, cables, and connectors by yourself.
When you need to shorten the cable with a specified length.
7.1 Replacing the Power Cables of the BTS3702E
When the power cables of the BTS3702E are faulty, you need to replace them.
7.2 Replacing the Signal Cables of the BTS3702E
When the signal cables of the BTS3702E are faulty, you need to replace them. The BTS3702E
signal cables are monitoring signal cables.
7.3 Replacing the Transmission Cables of the BTS3702E
The transmission cables of the BTS3702E are optical fibers and Ethernet cables.
7.4 Replacing the RF Jumpers of the BTS3702E
The RF jumper of the BTS3702E is used to receive and transmit the RF signals. When the faulty
RF jumper is confirmed, replace the faulty RF jumper.
Issue 01 (2009-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
7-1
DBS3900 WiMAX
Site Maintenance Guide (Draft)
7 Replacing the BTS3702E Cables
7.1 Replacing the Power Cables of the BTS3702E
When the power cables of the BTS3702E are faulty, you need to replace them.
Prerequisite
The type and model of the faulty power cables are confirmed, and the new power cables
are ready and routed according to the specifications.
The new cables are in good condition.
The required tools and materials are ready. The tools and materials are the ESD wrist strap
or gloves, Phillips screwdriver, flat-head screwdriver, ESD box or bag, and OT terminals.
Context
Replacing the power cables of the BTS3702E may interrupt all the services.
Replacing the power cables involves removing the faulty cables and installing the new cables.
This operation takes about five minutes.
CAUTION
Take proper ESD prevention measures, for example, wear ESD wrist straps or gloves to prevent
boards, modules, and electronic components from being destroyed by static discharge from the
human body.
Procedure
Step 1 Route the new power cables in the same way as the faulty power cables are routed.
Step 2 For details about how to power off the BTS3702E, see 3.2 Powering Off the BTS3702E.
Step 3 Remove the faulty power cables from the equipment.
Step 4 Install the new power cables.
Step 5 Attach engineering labels to the new power cables and ensure that the content on each
engineering label is consistent with that on the original label.
Step 6 Bind the new power cables.
Step 7 For details about how to power on the BTS3702E, see 3.1 Powering On the BTS3702E.
----End
Later Measures
After replacing the faulty power cables, verify that:
The cables are correctly and securely connected.
Contact the local Huawei office to handle the faulty power cables.
7-2
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 01 (2009-11-30)
DBS3900 WiMAX
Site Maintenance Guide (Draft)
7 Replacing the BTS3702E Cables
7.2 Replacing the Signal Cables of the BTS3702E
When the signal cables of the BTS3702E are faulty, you need to replace them. The BTS3702E
signal cables are monitoring signal cables.
Prerequisite
The types, models, and quantity of the faulty signal cables are confirmed, and the new
signal cables are ready.
The new cables are in good condition.
The required tools and materials are ready. The tools and materials are the ESD wrist strap
or ESD gloves, Phillips screwdriver, flat-head screwdriver, and ESD box or bag.
Context
Replacing the BTS3702E signal cables interrupts the signal transmission carried on the signal
cables.
Replacing the signal cables involves removing the faulty cables, installing the new cables,
clearing the alarms generated on the BTS3702E, and resuming the services. This operation takes
about ten minutes.
CAUTION
Take proper ESD prevention measures, for example, wear ESD wrist straps or gloves to prevent
boards, modules, and electronic components from being destroyed by static discharge from the
human body.
Procedure
Step 1 Lead the new signal cables to the peer device along the route of the faulty cables.
Step 2 Remove the faulty signal cables from the equipment.
Step 3 Connect two ends of new signal cables to the port connected to the faulty signal cables, and then
remove the fault signal cables.
Step 4 Attach an engineering label to each new cable. The content on each engineering label should be
the same as that on the replaced cable.
Step 5 Bind the new signal cables.
----End
Later Measures
Check the following items after replacing the faulty signal cables:
The cables are correctly and securely connected.
All related alarms are cleared in the alarm management system.
Issue 01 (2009-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
7-3
DBS3900 WiMAX
Site Maintenance Guide (Draft)
7 Replacing the BTS3702E Cables
Contact the local Huawei office to handle the faulty signal cables.
7.3 Replacing the Transmission Cables of the BTS3702E
The transmission cables of the BTS3702E are optical fibers and Ethernet cables.
7.3.1 Replacing the Ethernet Cables
The Ethernet cables are used to transmit the electric signals between the BTS3702E and the
ASN-GW, or transmit the electric signals between two cascading BTS3702Es. When the
Ethernet cables of the BTS3702C are faulty, you need to replace them.
7.3.2 Replacing the Optical Fibers
The optical fibers are used to transmit the optical signals between the BTS3702E and the ASNGW, or transmit the optical signals between two cascading BTS3702Es. When the optical fibers
of the BTS3702E are faulty, you need to replace them.
7.3.1 Replacing the Ethernet Cables
The Ethernet cables are used to transmit the electric signals between the BTS3702E and the
ASN-GW, or transmit the electric signals between two cascading BTS3702Es. When the
Ethernet cables of the BTS3702C are faulty, you need to replace them.
Prerequisite
The quantity and types of the faulty Ethernet cables are confirmed, and new Ethernet cables
are ready.
The new cables are in good condition.
The installation position of the Ethernet cable is recorded.
The required tools and materials are ready. The tools and materials are the ESD wrist strap
or ESD gloves, and ESD box or bag.
Context
Replacing the Ethernet cables between the BTS3702E and the ASN-GW interrupts all the
services carried by the BTS3702E. Replacing the cascading Ethernet cable between two
BTS3702Es interrupts all the BTS3702E services except the BTS3702E services between this
Ethernet cable and the ASN-GW.
Replacing the Ethernet cables involves removing the faulty cables and installing the new cables.
This operation takes about five minutes.
CAUTION
Take proper ESD prevention measures, for example, wear ESD wrist straps or gloves to prevent
boards, modules, and electronic components from being destroyed by static discharge from the
human body.
7-4
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 01 (2009-11-30)
DBS3900 WiMAX
Site Maintenance Guide (Draft)
7 Replacing the BTS3702E Cables
Procedure
Step 1 Route the new Ethernet cables in the same way as the faulty Ethernet cables are routed.
Step 2 Remove the faulty Ethernet cables from the power modules. Remove the other connector from
the peer device.
Step 3 Install the new Ethernet cables.
Step 4 Attach an engineering label to each new cable. The content on each engineering label should be
the same as that on the replaced cable.
Step 5 Arrange and bind the new Ethernet cables.
----End
Later Measures
Check the following items after replacing the faulty Ethernet cables:
The cables are correctly and securely connected.
The related transmission alarms are cleared in the alarm management system.
Contact the local Huawei office to handle the faulty Ethernet cables.
7.3.2 Replacing the Optical Fibers
The optical fibers are used to transmit the optical signals between the BTS3702E and the ASNGW, or transmit the optical signals between two cascading BTS3702Es. When the optical fibers
of the BTS3702E are faulty, you need to replace them.
Prerequisite
The quantity and type of the faulty optical fibers are confirmed, and new optical fibers are
ready.
The new fibers are in good condition.
The connections of optical fibers are recorded.
The required tools and materials are ready. The tools and materials include the ESD wrist
strap or gloves, ESD box or bag, and dust free cloth.
Context
Replacing the optical fibers between the BTS3702E and the ASN-GW interrupts all the services
carried by the BTS3702E. Replacing the cascading optical fiber between two BTS3702Es
interrupts all the BTS3702E services except the BTS3702E services between this optical fiber
and the ASN-GW.
Replacing the optical fibers involves removing the faulty optical fibers, installing the new optical
fibers, clearing the related transmission alarms generated on the BTS3702E, and resuming the
services. This operation takes about five minutes.
Issue 01 (2009-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
7-5
DBS3900 WiMAX
Site Maintenance Guide (Draft)
7 Replacing the BTS3702E Cables
CAUTION
Take proper ESD prevention measures. For example, wear ESD wrist straps or gloves to
prevent boards, modules, and electronic components from being destroyed by static discharge
from the human body.
Protect your eyes against the laser emitted by the optical fiber that is removed from the optical
module.
Procedure
Step 1 Route the new optical fibers in the same way as the faulty optical fibers are routed.
Step 2 Press the latch on the LC connector of the faulty optical fiber, and then remove the LC connector
from the optical module. Remove the other connector from the peer device.
Step 3 Plug the LC connector of the new optical fiber into the same optical module according to the
label on the optical fiber. Install the other connector on the peer device.
Step 4 Attach an engineering label to each new optical fiber. The content on each engineering label
should be the same as that on the replaced fiber.
Step 5 Arrange and bind the new optical fibers.
----End
Later Measures
Check the following items after replacing the faulty optical fiber:
The optical fiber of the correct type is properly connected.
All related alarms are cleared in the alarm management system.
Contact the local Huawei office to handle the faulty optical fibers.
7.4 Replacing the RF Jumpers of the BTS3702E
The RF jumper of the BTS3702E is used to receive and transmit the RF signals. When the faulty
RF jumper is confirmed, replace the faulty RF jumper.
Prerequisite
Check the quantity and types of the faulty RF jumpers and prepare new RF jumpers.
The required tools and materials are ready. The tools and materials include the ESD gloves,
screwdriver, waterproof tape, insulation tape, and feeder cable cutting tool.
Context
Before replacing the RF jumpers, you must power off the BTS3702E. This disrupts all the
services carried by the sectors associated with the BTS3702E.
7-6
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 01 (2009-11-30)
DBS3900 WiMAX
Site Maintenance Guide (Draft)
7 Replacing the BTS3702E Cables
CAUTION
Take proper ESD prevention measures. For example, wear ESD wrist straps or gloves to prevent
boards, modules, and electronic components from being destroyed by static discharge from the
human body.
NOTE
See the BTS3702E Quick Installation Guide to install new RF jumpers.
Procedure
Step 1 For details about how to power off the BTS3702E, see 3.2 Powering Off the BTS3702E.
Step 2 Remove the waterproof insulation tapes on the BTS3702E RF port and the antenna RF port.
Step 3 Remove the faulty RF jumpers from the BTS3702E RF ports.
Step 4 Remove the faulty RF jumpers from the RF ports on the antenna system.
Step 5 Fix the connector of the new RF jumpers to the corresponding RF ports on the BTS3701E.
Step 6 Wrap the joints of the BTS3702E RF ports with a layer of insulating tape. Wind the tape around
the joint from top down.
Step 7 Wrap the insulating tape with three layers of waterproof tape.
NOTE
The tape is wrapped in the following sequence: from top down, from bottom up, and then from top down.
For every two adjacent tape layers, the tape on the upper layer overlaps about half the width of the tape on
the lower layer.
Step 8 Wrap the waterproof tape with three layers of insulating tape. For details about how to wrap the
insulating tape, see Step 7.
Step 9 Connect the RF jumpers to the antenna system.
Step 10 Wrap the joint of the RF ports of the antenna system with the waterproof insulation tape.
Step 11 Stick the color rings. The new color rings should have the same color as the color rings on the
old RF jumpers.
Step 12 For details about how to power on the BTS3702E, see 3.1 Powering On the BTS3702E.
----End
Later Measures
Check the following items after replacing the faulty RF jumpers:
The cables are correctly and securely connected.
The BTS3702E is operational after being powered on.
Contact the local Huawei office to handle the faulty RF jumpers.
Issue 01 (2009-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
7-7
Source Exif Data:
File Type : PDF File Type Extension : pdf MIME Type : application/pdf PDF Version : 1.4 Linearized : No Page Mode : UseOutlines XMP Toolkit : 3.1-701 Create Date : 2009:12:22 17:25:44+08:00 Creator Tool : XSL Formatter V4.1 R1 (4,1,2006,1206) for Windows Modify Date : 2010:01:11 15:10:47+08:00 Metadata Date : 2010:01:11 15:10:47+08:00 Format : application/pdf Description : Site Maintenance Guide (Draft) Creator : Huawei Technologies Co., Ltd. Title : Site Maintenance Guide (Draft) Producer : Antenna House PDF Output Library 2.4.0 (Windows) Trapped : False Document ID : uuid:b7fefe71-d6bc-47e1-a2ce-b08eea192bcf Instance ID : uuid:b8ae2296-6da2-4d18-8056-529fb08cda03 Page Count : 33 Subject : Site Maintenance Guide (Draft) Author : Huawei Technologies Co., Ltd.EXIF Metadata provided by EXIF.tools