Huawei RRU3269 - Page 125

RRU3269
Installation Guide
9 Installing RRU Cables
Issue Draft B (2018-05-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
117
Table 9-2 RRU power cables
Cable
On the RRU
Side
On the
Power
Device Side
Pow
er
Devi
ce
Color
RRU
power
cable
Female
connector
(pressfit type)
Female
connector
(pressfit type)
EPU
A cable with a black jacket and
two wires inside

North American standards:
The RTN(+) wire is black and
the NEG(-) wire is blue.

European standards: The
RTN(+) wire is brown and the
NEG(-) wire is blue.

China: The RTN(+) wire is red
and the NEG(-) wire is blue.
DCD
U-11
B
EPC5
connector
DCD
U-12
B

Before installing RRU power cables, ensure that the upper-level circuit breaker is
disconnected, and the power cable has no voltage.

A drip loop is required for the position between the RRU port and the cable, preventing
rain from damaging the RRU.

When installing the RRU power cable, connect the power cable to the RRU connector first
and then to the power equipment connector. Incorrect connection sequence or reverse
connection of position and negative poles may damage the RRU or cause personal injury.
Procedure
Step 1 Connect the female connector (pressfit type) at one end of the RRU power cable to the power
supply socket on the RRU, as shown in Figure 9-29.