Zte ZXG10-BTS User manual

ZXG10-BTS (V1A)
Base Transceiver Station
Maintenance Manual
ZTE Corporation

© ZTE Corporation. 2002, S enz en, P. R. C ina
All rig ts reserved. No part of t is publication may be excerpted,
reproduced, translated, annotated or edited, in any form or by any
means, wit out t e prior written permission of t e copyrig t owner.
ZXG10-BTS (V1A)
Maintenance Manual
* * * *
3/F., A Wing, ZTE Plaza, Hi-Tech Industrial Park, henzhen, P. R. China
Tel: [phone]
Fax: [phone]
Post-code: 518057
* * * *
August, 2002 First Edition, First Print

Preface
ZXG10, a G M mobile communication system independently developed by ZTE Corporation, is
composed of the switching sub-system ZXG10-M and the base station sub-system ZXG10-B .
The ZXG10-B is in charge of providing and managing wireless transmission in G M, and is
composed of the base station controller ZXG10-B C and the base station transceiver ZXG10-BT ,
etc. The reliable running of the ZXG10-B on the network is closely related to correct operation
and maintenance. Therefore, it is very important to handle problems properly with correct methods.
The ZXG10-BTS (V1A) Maintenance Manual serves as a guide for the user to perform daily
maintenance and fault handling on ZXG10-BT (V1A). This manual primarily introduces the daily
maintenance, alarm handling and operation information processing of ZXG10-BT (V1A).
In this Manual, ZXG10-BT (V1A) is abbreviated as BT (V1A) or BT ; ZXG10-BT (V1A) local
management terminal as LMT; ZXG10-B (V1A) as B ; and ZXG10-B C (V1A) as B C (V1A)
or B C.
This Manual includes three chapters: Chapter 1 introduces the routine maintenance and emergent
maintenance of the ZXG10-BT (V1A) as well as frequently used maintenance methods. Chapter 2
introduces the alarm classification of the LMT of ZXG10-BT (V1A) and describes in detail the
alarm code, alarm content, alarm level, alarm cause, alarm impact, time limit of handling, and
handling process. Chapter 3 itemizes the operation information and handling methods of the boards
such as OMU and TRU. Appendix A introduces the procedures and precautions for replacing parts
and boards. Appendix B gives a list of abbreviations used in this document for the convenience of
users in reading this Manual.
This set of manuals also consists of the following documents:
Technical Manual for ZXG10-BT (V1A)
Installation Manual for ZXG10-BT (V1A)
Operation Manual for ZXG10-BT (V1A)
Statement: T e actual product may differ from w at is described in t is manual due to
frequent updates of ZTE products and fast development of tec nologies. Please contact our
local office for updating/upgrading information of t e product.

Contents
1 EQUIPMENT MAINTENANCE .......................................................................................................... 1
1.1 MAINTENANCE DE CRIPTION ....................................................................................................................... 1
1.2 ROUTINE MAINTENANCE ............................................................................................................................. 2
1.2.1 Daily routine maintenance ........................................................................................................... 2
1.2.2 Re ular routine maintenance ....................................................................................................... 4
1.3 EMERGENT MAINTENANCE .......................................................................................................................... 5
1.4 TYPICAL MAINTENANCE METHOD ............................................................................................................... 6
1.5 RELEVANT MAINTENANCE TABLE ................................................................................................................ 7
1.5.1 Routine maintenance and operation record table ....................................................................... 7
1.5.2 Emer ent maintenance and operation record table .................................................................. 10
2 ALARM HANDLING ........................................................................................................................... 11
2.1 ALARM INFORMATION AND CLA IFICATION ................................................................................................. 11
2.2 LEVEL-1 ALARM .................................................................................................................................... 18
2.3 LEVEL- 2 ALARM ................................................................................................................................... 18
2.3.1 Alarm of the main clock si nal of the BS CKU ......................................................................... 18
2.3.2 Software version error of the BIE .............................................................................................. 19
2.3.3 Major alarm of the standin wave ratio of the transmitter combiner ....................................... 19
2.3.4 Communication interruption of the OMU .................................................................................. 20
2.4 LEVEL- 3 ALARM ................................................................................................................................... 21
2.4.1 Check error of the uplink data from the receivin processor to the channel processor ............ 21
2.4.2 Frame unit fault .......................................................................................................................... 24
2.4.3 Inconsistency of software versions ............................................................................................. 27
2.4.4 Out-of-lock of the transmittin RF self oscillator ...................................................................... 28
2.4.5 Error of software versions .......................................................................................................... 29
2.4.6 Fault of the BS clock unit (CKU) ............................................................................................... 31
2.4.7 Fault of BIE switchin chips ...................................................................................................... 33
2.4.8 Faults of the BIE E1 interface .................................................................................................... 35
2.4.9 Alarm of fans of the BIE ............................................................................................................. 41
2.4.10 Alarm of temperature sensor ................................................................................................... 47
2.4.11 Fault of buses ........................................................................................................................... 52
2.4.12 Alarm of power amplifiers (PAs) .............................................................................................. 53
2.4.13 Alarm of low-noise amplifiers of the receiver multi-coupler .................................................. 55
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2.4.14 Power alarm ............................................................................................................................. 57
2.4.15 Interruption of board communications .................................................................................... 58
2.4.16 Timeout of board unreported .................................................................................................... 61
2.4.17 Alarm of the 80W power amplifier (PA) ................................................................................... 62
2.4.18 Other alarm information .......................................................................................................... 63
2.5 LEVEL 4 ALARM ..................................................................................................................................... 67
2.5.1 Di ital processor fault in the transceiver .................................................................................. 67
2.5.2 Check error of the uplink data from the RPP to the CHP .......................................................... 72
2.5.3 Cross-threshold of the flash memory pro rammin times in the frame unit controller ............. 75
2.5.4 Channel parameter confi uration error .................................................................................... 75
2.5.5 Out-of-lock of receivin RF self oscillator ................................................................................. 79
2.5.6 Alarm for out-of-lock of the phase-locked loop of the BS CKU ................................................. 80
2.5.7 No response of layer-3 software ................................................................................................. 81
2.5.8 Slide code indication of the BIE E1 interface si nal ................................................................. 83
2.5.9 BS OMU fault ............................................................................................................................. 88
2.5.10 Minor alarm of PA over-temperature ....................................................................................... 89
2.5.11 Board communication interruption .......................................................................................... 90
2.5.12 Boards are unreported till timeout .......................................................................................... 94
2.5.13 80W PA link alarm .................................................................................................................. 101
3 RUNNING INFORMATION PROCESSING .................................................................................. 102
3.1 CLA IFICATION OF RUNNING INFORMATION ............................................................................................... 102
3.2 OMU OPERATION INFORMATION ............................................................................................................. 106
3.2.1 OMU board not powered on ..................................................................................................... 106
3.2.2 OMU board powered on ........................................................................................................... 106
3.2.3 OMU BOOT startin ................................................................................................................ 106
3.2.4 OMU in active status ................................................................................................................ 107
3.2.5 OMU in standby status ............................................................................................................. 107
3.2.6 OMU procedure initially launched .......................................................................................... 107
3.2.7 OMU clock fault ....................................................................................................................... 108
3.2.8 OMU LAPD link disconnected. ................................................................................................ 108
3.2.9 OMU system in the initialization status .................................................................................. 108
3.2.10 OMU file downloadin ........................................................................................................... 109
3.3 TRU OPERATION INFORMATION ............................................................................................................... 109
3.3.1 TRU board not powered on ...................................................................................................... 109
3.3.2 TRU board powered on ............................................................................................................ 109
3.3.3 BOOT startin .......................................................................................................................... 110
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3.3.4 Process initially started ............................................................................................................ 110
3.3.5 OMU clock fault ....................................................................................................................... 110
3.3.6 LAPD link disconnected ........................................................................................................... 111
3.3.7 TRU HDLC link disconnected .................................................................................................. 111
3.3.8 TRU system in the initialization status ..................................................................................... 112
3.3.9 TRU file downloadin ............................................................................................................... 112
3.3.10 TRU BCCH carrier indication ............................................................................................... 112
3.4 BIE RUNNING INFORMATION ................................................................................................................... 113
3.4.1 BIE board not powered on ........................................................................................................ 113
3.4.2 BIE pro ram out of service ...................................................................................................... 113
3.4.3 BIE HDLC link not established ................................................................................................ 113
3.4.4 BIE workin normally .............................................................................................................. 114
3.4.5 BIE in the active status ............................................................................................................. 114
3.5 EBIE RUNNING INFORMATION ................................................................................................................ 114
3.5.1 EBIE board not powered on ..................................................................................................... 114
3.5.2 EBIE pro ram out of service .................................................................................................... 115
3.5.3 EBIE 8K and E1 alarm ............................................................................................................. 115
3.5.4 EBIE HDLC link not established .............................................................................................. 115
3.5.5 EBIE workin normally ............................................................................................................ 116
3.5.6 EBIE in active status ................................................................................................................ 116
3.5.7 EBIE parameter confi uration ................................................................................................ 116
3.6 CKU RUNNING INFORMATION ................................................................................................................. 117
3.6.1 CKU board not powered on ...................................................................................................... 117
3.6.2 CKU initialization .................................................................................................................... 117
3.6.3 CKU pro ram out of service .................................................................................................... 117
3.6.4 CKU workin normally ............................................................................................................ 118
3.6.5 CKU in the active status ........................................................................................................... 118
3.6.6 CKU in the phase lock status .................................................................................................... 118
3.6.7 CKU in the locked status .......................................................................................................... 118
3.6.8 Asynchronization of the whole CKU network .......................................................................... 119
3.6.9 The CKU clock frame number abnormal ................................................................................. 119
3.6.10 CKU HDLC link not established ............................................................................................ 119
3.6.11 The CKU 8K clock abnormal ................................................................................................. 120
3.7 EAM RUNNING INFORMATION ................................................................................................................ 120
3.7.1 EAM board not powered on ..................................................................................................... 120
3.7.2 EAM initialization .................................................................................................................... 120
3.7.3 EAM workin normally ............................................................................................................ 121
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3.7.4 EAM HDLC link disconnected ................................................................................................. 121
3.7.5 The EAM system clock severely abnormal ............................................................................... 121
APPENDIX A REPLACEMENT OF BOARDS AND PARTS .......................................................... 123
A.1 OVERVIEW ........................................................................................................................................ 123
A.2 REPLACEMENT OF THE PUBLIC HELF BOARD .......................................................................................... 124
A.3 REPLACEMENT OF THE CARRIER HELF BOARD ........................................................................................ 125
APPENDIX B ABBREVIATIONS ....................................................................................................... 127
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1 Equipment Maintenance
1.1Maintenance description
The objective of daily maintenance is to ensure an optimized working condition of the product, so
that the whole network runs properly. The classification of the daily maintenance of the ZXG10-BT
(V1A), together with the maintenance requirements and recommendations will be described below.
1. Maintenance classification
Daily maintenance of ZXG10-BT (V1A) can be classified into routine maintenance and emergent
maintenance.
The routine maintenance refers to periodical maintenance, which is divided into daily routine
maintenance and regular routine maintenance by their maintenance periods. Emergent maintenance
refers to the maintenance tasks to be immediately executed as required by sudden failures of the
ZXG10-BT (V1A) equipment and network adjustment, e.g., equipment failure, user-reported fault,
and the emergent problems found out in routine maintenance. Emergent failures are characterized by
abrupt occurrence and serious influences on the Qo , so the maintenance personnel in the equipment
room are required to handle them decisively, cautiously and in-time. A detailed record must be made
afterward so as to eliminate potential faults.
2. Maintenance requirements and recommendations
The daily maintenance of ZXG10-BT (V1A) equipment is a major task for the maintenance
personnel in the equipment room. Excellent daily maintenance is a key factor to ensure long-term
stable running of the equipment. Therefore, a set of equipment room maintenance regulations should
be formulated to regulate and guide the work of the maintenance personnel. The followings are some
basic requirements and recommendations for daily maintenance:
1) The maintenance personnel should implement the daily and regular routine check strictly and
keep a detailed record without any omission.
2) The maintenance personnel must keep the equipment room safe and tidy, with proper
temperature and humidity.
3) The maintenance personnel should follow the equipment operation specifications strictly,
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avoid any operations on the equipment beyond the daily maintenance specifications, e.g.,
arbitrarily plugging/unplugging, resetting, starting and switching over the equipment, or
changing the data; and should wear an anti-static wrist strap when accessing the hardware
system, and store the damaged parts and the spare parts in anti-static bags, which should be
labeled of the category and stored properly.
4) The person in charge of the equipment room should keep the user accounts, passwords and
the user authorities for login to the local operation & maintenance console and to the network
management system, and distribute them to relevant persons according to their specific
authorities, so as to define the responsibility and authority clearly.
5) The maintenance personnel should handle detected problems and faults in time, report major
problems to relevant supervisors in time and contact the local office of ZTE to get an early
solution, which should be recorded in detail afterward.
6) Before on-duty, the maintenance personnel must undergo necessary training. Different
maintenance positions should be assumed by persons of the corresponding technical levels.
7) The frequently used tools and instruments should be checked, repaired and calibrated before
use to ensure their proper conditions. Generally, the following tools and instruments are
recommended to be prepared in the equipment room.
A. Tools and auxiliary materials: screwdriver (flat-head and Phillips), diagonal pliers, cable
stripper, unpacking pliers, electric iron, chip-extractor, programmer, eraser, tweezers,
spanner, electrical drill, tape, anti-static wrist strap, insulating tape and cable tie.
B. Instruments: Multimeter, thermometer, humidity meter, optical power meter and earth
resistance tester.
8) The power supply of the system should be kept stable and reliable, and the grounding of the
system should be checked regularly.
1.2Routine maintenance
1.2.1Daily routine maintenance
Daily routine maintenance includes the following items:
1. Equipment room environment
1) Temperature requirements:
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Maintenance Manual for ZXG10-BT (V1A)