Installing An Rru Rf Jumper - Huawei RRU3942 Installation Manual

RRU3942
Installation Guide
Step 3 Label the installed cable by referring to Attaching a Cable-Tying Label.
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7.6 Installing an RRU RF Jumper

This section describes the procedure for installing an RRU RF jumper.
Procedure
Step 1 Link the DIN connector at one end of the RF jumper to the ANT port and use a torque wrench
to tighten the connector to 25 N·m (221.27 lbf·in.), as shown in
Figure 7-10 Installing an RRU RF jumper
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
Issue ()
CAUTION
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7 Installing RRU Cables
Figure 7-10.
Figure 7-11.
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