NOTE
The colors and structures of cables vary according to countries and areas. If the cables are purchased locally,
the colors and structures of the cables may be different.
Procedure
Step 1 Prepare a DCDU-03B power cable.
1. Cut the cable to the required length based on the actual cable route.
2. Add an OT terminal to each end of the cable. For details, see Assembling the OT Terminal
and the Power Cable.
Step 2 Install the DCDU-03B power cable, as shown in Figure 11-15.
1. Link the OT terminals at one end of the DCDU-03B power cable to the wiring terminals
labeled NEG(-) and RTN(+) on the DCDU-03B.
2. Link the OT terminals at the other end to external power equipment.
Figure 11-15 Installing a DCDU-03B power cable
Step 3 Route the cable by referring to 11.4.1 Cabling Requirements, and then use cable ties to bind
the cable.
Step 4 Label the installed cables. For details, see Attaching a Cable-Tying Label.
----End
Installing a BBU Power Cable
A BBU power cable feeds power into a BBU.
Context
l In the triple mode scenario, two BBUs are required. A second BBU power cable is installed
in the same manner as the first BBU power cable.
l Table 11-4 lists the specifications for a BBU power cable when a DCDU-03B supplies
power.
DBS3900 (Ver.B)
Installation Guide
11 Indoor Scenario with DC Power Supply (BBU Installed
on a Wall)
Issue 06 (2011-09-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
384
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