Huawei BBU3900 - Page 3

Contents
About This Document.....................................................................................................................1
1 Safety Information.....................................................................................................................1-1
1.1 Safety Precautions...........................................................................................................................................1-1
1.2 Electricity Safety.............................................................................................................................................1-3
1.3 Inflammable Environment...............................................................................................................................1-5
1.4 Battery.............................................................................................................................................................1-5
1.5 Radiation.........................................................................................................................................................1-7
1.6 Working at Heights.........................................................................................................................................1-9
1.7 Mechanical Safety.........................................................................................................................................1-11
1.8 Others............................................................................................................................................................1-12
2 BBU3900 Hardware....................................................................................................................2-1
2.1 BBU3900 Equipment......................................................................................................................................2-2
2.1.1 Appearance of the BBU3900.................................................................................................................2-2
2.1.2 Boards and Module of the BBU3900.....................................................................................................2-2
2.2 BBU3900 Cables...........................................................................................................................................2-14
2.2.1 BBU3900 Cable List............................................................................................................................2-15
2.2.2 PGND Cable.........................................................................................................................................2-16
2.2.3 Power Cable.........................................................................................................................................2-16
2.2.4 E1 Cable...............................................................................................................................................2-17
2.2.5 E1 Surge Protection Transfer Cable.....................................................................................................2-19
2.2.6 Monitoring Signal Cable Between the APMI and the BBU................................................................2-21
2.2.7 CPRI Optical Cable..............................................................................................................................2-21
2.2.8 Alarm Cable.........................................................................................................................................2-22
2.3 BBU3900 Auxiliary Equipment....................................................................................................................2-23
2.3.1 APM30.................................................................................................................................................2-23
2.3.2 DCDU-03B...........................................................................................................................................2-24
3 Maintaining BBU3900 Hardware............................................................................................3-1
3.1 Maintenance Items of the BBU.......................................................................................................................3-2
3.2 Powering On and Powering Off the BBU.......................................................................................................3-2
3.2.1 Powering On the BBU............................................................................................................................3-2
3.2.2 Powering Off the BBU...........................................................................................................................3-3
3.3 Replacing the BBU Parts.................................................................................................................................3-4
BBU3900 GSM
User Guide Contents
Issue 04 (2008-09-05) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd
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