Step 3 Label the installed cables according to the instructions in Attaching a Cable-Tying Label.
----End
9.6 Installing an RRU RF Jumper
This section describes the procedure for installing an RRU RF jumper.
Procedure
Step 1 Connect the DIN male connector at one end of the RRU RF jumper to the ANT port on the RRU,
and use a torque wrench to tighten the connector to 25 N·m (221.27 lbf·in.), as shown in Figure
9-13.
Figure 9-13 Installing an RRU RF jumper
NOTICE
On AC-powered electric railways, such as high speed railways, when leaky cables are connected
to RRUs installed in tunnels, high-voltage-resistance DC blocks must be installed between RRU
RF jumpers and the leaky cables to protect the RRUs against damage.
Step 2 Link the other end of the RF jumper to the external antenna system.
Step 3 Waterproof the connectors of the RF jumper by referring to Figure 9-14.
RRU3832&RRU3632
Installation Guide
9 Installing RRU Cables
Issue 05 (2014-06-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
98
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