Figure 11-16 shows the installation process.
Figure 11-16 Installing two input power cables in the lower shelf
Step 2 Connect the cable that supplies the power to BBU from DCDU in the lower shelf.
1. Choose a cable with length 1.3m and diameter 35mm
2
(one end is tool-less female power
connector (pressfit type) and the other end is 3V3 power connector).
2. Check whether the circuit breakers labelled SW7 and SW8 on DCDU-11A are set to
OFF.
3. Connect one end to PWR port on UPEU in BBU in the upper shelf and connect the other
end to LOAD7 or LOAD8 port on DCDU-11A in the lower shelf, as shown in Figure
11-17.
BTS3900L (Ver.C)
Installation Guide
11 Installing the Cables
Issue 07 (2013-11-08) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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