NOTE
If extension in future, the fan box in the lower shelf should be restored to get the power from DCDU in the
lower shelf.
Figure 11-18 shows the small configuration scenario.
Figure 11-18 Small configuration scenario III
Procedure
Step 1 Connect two 80A input cables to DCDU in the upper shelf.
1. Measure the distance between the DCDU-11A and the external power supply equipment
according to the actual cable route, and then prepare power cables of a proper length.
2. Add an M6 OT terminal to each end of the power cables. For details, see Assembling the
OT Terminal and the Power Cable.
3. Remove the protective cover from the terminal block of the DCDU-11A.
4. Connect the blue cable to the wiring terminal labeled NEG(-) and black cable to the wiring
terminal labeled RTN(+).
5. Use a screwdriver to tighten the screws on the wiring terminals.
6. Install the protective cover, and then use a screwdriver to tighten the screws.
Figure 11-19 shows the installation process.
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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