Cable Connections - Huawei RRU3942 Installation Manual

RRU3942
Installation Guide
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7.2 Cable Connections

This section describes the cable connections for a single RRU and multiple RRUs.
Figure 7-3
Figure 7-3 Cable connections for a single RRU in the single-mode scenario
(1) PGND cable
(4) RRU AISG extension cable
(7) RRU alarm cable
Figure 7-4
Issue ()
If the fiber optic cables close to a device are too long, coil the excess of the cables and
secure them on the tower.
NOTE
A lower-level RRU obtains power directly from the external power system, but not from an upper-level
RRU using a power cable.
shows the cable connections for a single RRU in the single-mode scenario.
shows the cable connections for a single RRU in the multi-mode scenario.
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(2) RRU RF jumper
(5) RRU power cable
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7 Installing RRU Cables
(3) RRU AISG multi-wire cable
(6) CPRI fiber optic cable
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