Huawei DBS3900 WiMAX Operating manual

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
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Bantian, Longgang
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Copyright © Huawei Technologies Co., Ltd. 2009. All rights reserved.
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Notice
The purchased products, services and features are stipulated by the contract made between Huawei and the
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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
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The information in this document is subject to change without notice. Every effort has been made in the
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recommendations in this document do not constitute the warranty of any kind, express or implied.
Huawei Proprietary and Confidential
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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
DBS3900 WiMAX
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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
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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:
lSystem engineers
lSite maintenance personnel
Change History
Version Change History
01(2009-11-25) This is the initial release.
DBS3900 WiMAX
Site Maintenance Guide (Draft) About This Document
Issue 01 (2009-11-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
1

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.
Organization
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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.
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.
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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.
Organization
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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.
Obtaining the Site Information
Before maintaining the BTS3702E site, familiarize yourself with the following information
about the BTS:
lUnsolved faults and alarms of the site
lHardware configuration of the site
lLocal environment
lSpare parts
Selecting Maintenance Items
According to the specific condition of the BTS3702E site, you should select proper maintenance
tasks, including:
lMaintaining the power supply system and grounding system of the BTS3702E
lMaintaining the BTS3702E main equipment
lMaintaining 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:
lThe frequency test devices include a signal generator, a spectrum analyzer, and
corresponding connectors and cables.
lThe power test devices are used to test and analyze the output power of the BTS3702E.
The power meter is often used.
lThe 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.
lOther materials
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–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 Preparations for Site Maintenance
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2 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.
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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 Tasks of Routine Hardware Maintenance
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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 Operation Standard
Signal cables Annually
Carefully check the
connection of the
signal cables.
lThe signal cables are
reliably connected.
lThe signal cables are
intact.
lThe cables can be clearly
identified through the
labels.
Ethernet cables Annually
Carefully check the
connection of the
Ethernet cables.
lThe Ethernet cables are
reliably connected.
lThe Ethernet cables are
intact.
lThe hubs are intact.
lThe cables can be clearly
identified through the
labels.
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Item Frequency Operation Standard
Optical fibers Annually
Check the connections
of the optical fibers and
optical modules.
lThe optical fibers are
intact and reliably
connected.
lThe optical modules are
clean and connected
properly.
lThe winding pipes for
the optical fiber are
intact.
lThe cables can be clearly
identified through the
labels.
RF jumper Annually
Carefully check the
connection of the RF
jumper.
lThe RF jumpers are
intact and reliably
connected.
lThe waterproof of the RF
jumper connections is
perfect.
lThe cables can be clearly
identified through the
labels.
Connectors and
sockets Quarterly
Check whether there is
any dust or greasy dirt
on the insulators of the
connectors and
sockets.
The insulators are clean.
2 Tasks of Routine Hardware Maintenance
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3 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.
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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
lThe installation of the hardware and cables of the BTS3702E is finished.
lThe 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
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.
3 Powering On and Powering Off the BTS3702E
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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.
TX_ACT Green 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.
SFP0 Red and green 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.
SFP1 Red and green 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.
VSWR Red Off No alarm is generated.
On An alarm is generated on only
the A port of the antenna
subsystem.
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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
when you swap the equipment or anticipate
a territorial power outage.
Power off the BTS3702E in a normal situation
by referring to Step 2.
The BTS3702E needs to be powered off in
an emergency, such as fire, smoke, or water
immersion,
Power off the BTS3702E in an emergency by
referring to Step 3.
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 Powering On and Powering Off the BTS3702E
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