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RRU3642
Installation Guide
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 01 (2011-12-27)
CAUTION
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7 Installing RRU Cables
Figure
7-11.
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