Closing The Cover Plate Of An Rru Cabling Cavity - Huawei DBS3900 Installation Manual

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RRU3249

Installation Guide

Figure 7-26 Installing an RRU power cable

Ensure that the exposed shield layer of the power cable is properly tightened using the clip.

Step 2 Connect the connector at the other end of the RRU power cable to the corresponding position

on the power device.

Step 3 Route the cables according to the instructions in Cabling Requirements, and then use cable ties

to bind the cables.

Step 4 Label the installed cables according to the instructions in Attaching a Cable-Tying Label.

----End

7.12 Closing the Cover Plate of an RRU Cabling Cavity

This section describes the procedure for closing the cover plate of an RRU cabling cavity.

Procedure

Step 1 Close the clips for the installed cables. Use an M4 torque screwdriver to tighten the screws on

each clip to 1.4 N·m (12.39 lbf·in.), as shown in

Issue DraftA (2015-05-30)

NOTICE

NOTE

l A DCDU-11B/DCDU-12B can supply power to a maximum of six RRUs. Ensure that the RRU power

cable is connected to one of LOAD0 to LOAD5 ports on the DCDU-11B/DCDU-12B.

l One EPU can supply power to a maximum of six RRUs. Ensure that the RRU power cable is connected

to one of RRU0 to RRU5 ports on the EPU.

l When the RRU power cable is connected to the EPU, the blue core wire in the tool-less female connector

(pressfit type) is connected to the upper port on the EPU, and the black/brown core wire is connected

to the lower port on the EPU.

Huawei Proprietary and Confidential

7 Installing RRU Cables

Figure

7-27.

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