Srxu Cables; Table 2-12 Pin Assignment For The Wires Of The Alarm Cable - Huawei RRU User Manual

RRU
User Guide

Table 2-12 Pin assignment for the wires of the alarm cable

X1 End
X1.2
X1.3
X1.6
X1.7
X1.10
X1.11
X1.13
X1.14
Installation Position
The DB15 male connector is linked to the RS485/EXT_ALM port on the cabling cavity of the
RRU, and the other end of the cable is connected to the ports for Boolean alarm signals on the
external device.

2.4 SRXU Cables

The SRXU cables include the PGND cable, power cable, AISG multi-wire cable, AISG
extension cable, CPRI optical cable, and RF jumper.
2.4.1 PGND Cable of the SRXU
The PGND cable ensures the grounding of the SRXU.
2.4.2 Power Cable of the SRXU
The SRXU uses a shielded DC power cable. The cable feeds power from the RRU to the SRXU.
2.4.3 AISG Multi-Wire Cable of the RRU/SRXU
The five-meter-long AISG multi-wire cable connects the RRU/SRXU to the Remote Control
Unit (RCU). If both RRU and SRXU are installed, the AISG multi-wire cable only connects the
SRXU and the RCU. This cable is optional.
2.4.4 AISG Extension Cable of the RRU/SRXU
When the distance between the RCU and the RRU/SRXU is longer than 5 m, the AISG multi-
wire cable is not long enough to cover the distance. In this case, the AISG extension cable is
used. The AISG extension cable is 15 m long.
2.4.5 CPRI Optical Cable
This describes the CPRI optical cable. It connects the BBU3836 to the RRU and transmits CPRI
signals between them.
Issue 01 (2008-04-18)
Cord End Wire Color
Terminal
X2 White and
blue
X3 Blue
X4 White and
orange
X5 Orange
X6 White and
green
X7 Green
X8 White and
brown
X9 Brown
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd
2 RRU and SRXU Hardware
Wire Type Label
Twisted pair SWITCH_INPUT0+
GND
Twisted pair SWITCH_INPUT1+
GND
Twisted pair RS485_TX-
RS485_TX+
Twisted pair RS485_RX-
RS485_RX+
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