Procedure
Step 1 Prepare an input power cable for the +24 V DC APM30H.
1. Cut the cable to the required length based on the actual cable route.
2. Add connectors to either end of the input power cable for the +24 V DC APM30H according
to Table 8-5. For details, see Assembling the OT Terminal and the Power Cable.
Step 2 Use a Phillips screwdriver to remove the screws from the protecting hood for the wiring terminals
of the power subrack (DC/DC), and then remove the protecting hood.
Step 3 Install the input power cable for the +24 V DC APM30H, as shown in Figure 8-61.
1. Connect the two red and black wires at one end of the input power cable for the +24 V DC
APM30H to the wiring terminal labeled + and - on the power subrack (DC/DC)
respectively, and then tighten the screws on the wiring terminals using a screwdriver.
2. Install the protecting hood, and then use a screwdriver to tighten the screws.
3. Connect the other end to external power equipment.
Figure 8-61 Installing an input power cable for the +24 V DC APM30H
Step 4 Route the cable by referring to 8.5.1 Cabling Requirements, and then use cable ties to bind the
cable.
Step 5 Label the installed cables. For details, see Attaching a Cable-Tying Label.
Step 6 Run each cable that leaves the cabinet in the PVC corrugated pipe, and then tie the pipe to the
cable hole in the cabinet.
----End
Installing a BBU Power Cable
A BBU power cable feeds power into a BBU.
DBS3900 (Ver.B)
Installation Guide
8 Outdoor Scenario with DC Power Supply (BBU Installed
in a +24 V DC APM30H)
Issue 06 (2011-09-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
262
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