User's Manual

RRU3278

Installation Guide

8 Installing RRU Cables

Issue 05 (2017-03-10)

Huawei Proprietary and Confidential

Figure 8-14 Mapping relationship between the RF ports and the antenna ports2



The labels on ports on the antennas and on the RRU bottom as shown in Figure 8-13 and Figure

8-14 are for reference only.



In 8T8R scenarios, RRU RF ports must correspond to antenna ports when they are connected using

RRU RF jumpers. In 4T4R+4T4R scenarios, "ANT1, ANT2, ANT3, and ANT4" are connected to an

antenna, and "ANT5, ANT6, ANT7, and ANT8" are connected to an antenna. They correspond to

antenna ports 1, 2, 3, and 4, respectively.

Procedure

Step 1 Remove the dust-proof caps from the ANT ports on the RRU and save the caps for future

usage.

Step 2 Connect the Type N connector at one end of each RRU RF jumper to an ANT port on the

RRU and use a torque wrench to tighten the connector with a torque of 1 N·m (8.85 lbf·in.),

as shown in Figure 8-15.