One End (AC
RRU)
The Other End
(Power equipment)
Color Description
X1.C Blue N
X1.B Green and yellow PE
 
Table 3-5 describes the pin assignment for the power cable between the AC RRU and the AC
surge protection box.
Table 3-5 Pin assignment for the wires of the AC power cable between the AC RRU and the
AC surge protection box
One End (AC
RRU)
The Other End (AC
surge protection
box)
Color Description
X1.A X2 Brown L
X1.C X3 Blue N
X1.B X4 Green and yellow PE
 
Table 3-6 describes the pin assignment for the power cable between the AC surge protection
box and the power equipment.
Table 3-6 Pin Assignment for the wires of the power cable between the AC surge protection
box and the power supply device
One End (AC
surge protection
box)
The Other End
(Power equipment)
Color Description
X3 Bare wire Brown L
X1 Blue N
X2 Green and yellow PE
 
3.5 Monitoring Signal Cable for the AC RRU
The monitoring signal cable for the AC RRU feeds power to the AC RRU and monitors the
running status of the RRU.
NOTE
The monitoring signal cable for the RRU is connected to the RRU before delivery.
3 RRU Cables
RRU3908 V2
Hardware Description
3-8 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 02 (2010-10-25)