User's Manual

RRU3278

Installation Guide

8 Installing RRU Cables

Issue 05 (2017-03-10)

Huawei Proprietary and Confidential

Step 3 Route the cable by referring to section "Cabling Requirements". Then, use the cable tie to

secure it.

Step 4 Label the installed cable by referring to Attaching a Sign Plate Label.

----End

8.11 Installing an RRU Power Cable

This section describes how to install a remote radio unit (RRU) power cable.

Prerequisites

A tool-less female connector (pressfit type) is added to the RRU power cable on the RRU side.

For details, see 11.1 Adding a Tool-less Female Connector (Pressfit Type) to an RRU Power

Cable.

Context

The recommended specifications of the circuit breakers on the power supply device is 25 A to

30 A.



Before installing the RRU power cable, ensure that the upper-level circuit breaker is

switched off and the power cable has no voltage.



When installing the RRU power cable, connect the power cable to the RRU connector first

and then to the power equipment connector. Incorrect connection sequence or reverse

connection of positive and negative poles may damage the RRU or cause personal injury.



A drip loop is required for the position between the RRU port and the cable, preventing

rain from damaging the RRU.

Procedure



Install an RRU power cable that feeds power to an RRU from the DCDU when a DCDU

is configured.

a. Connect the tool-less female connector (pressfit type) at one end of the power cable

to the power supply socket on the RRU, as shown in Figure 8-30.