No. Item
5 The bare wires and the terminal handles at the wiring terminals are coated with heat-
shrinkable tubes.
6 The flat washer and the spring washer are well mounted on all OT terminals.
7 The exterior of the battery is intact without any scratch, dent, or crack.
8 The shell of the battery is clean without any leakage trace.
9 The wiring post on the battery stands properly without any damage, and the post is
not covered with any acidic substances.
10 The pressure relief valve of the battery is not transformed, and no liquid leaks.
11 The power cables for the batteries are connected to the positive and negative
polarities correctly.
12 The voltage of the battery is normal.
l The voltage of a 2 V battery cell ranges from 1.8 V to 2.35 V.
l The voltage of a 12 V battery cell ranges from 10.8 V to 14.1 V.
l The total voltage of the batteries ranges from 43.2 V to 56.4 V.
13 The fans work properly.
l The fan in the IBBS200D rotates in a low speed in a normal situation.
l The outer air circulation fan in the IBBS200T stops in a normal situation (with
the ambient temperature of lower than 30°C), and the inner air circulation fan
rotates in a high speed.
l The outer air circulation fan in the APM30H stops in a normal situation (with
the ambient temperature of lower than 35°C), and the inner air circulation fan
rotates in a low speed.
14
The MCBs for the batteries are set to OFF.
Cable Installation Checklist
Table 14-9 describes the cable installation checklist.
Table 14-9 Cable installation checklist
No.
Item
1 All cables are connected securely and reliably. Pay special attention to the
communication cable connections and cable connections at the bottom of the
cabinet.
2 The cables are neatly and tightly bound. The cable ties are evenly spaced and face
the same direction.
3 Different types of cable, such as the power cable, ground cable, feeder, optical cable,
E1/T1 cable, and FE cable are separately bound.
DBS3900 (Ver.B)
Installation Guide
14 Indoor Scenario with DC Power Supply (BBU Installed
Indoors and RRU Powered Outdoors)
Issue 06 (2011-09-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
537
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