Huawei BTS3802C User Manual

Table 2-12 Pin assignment for the wires of the alarm cable
X1 End Cord End
Terminal
Wire Color Wire Type Label
X1.2 X2 White and
blue
Twisted pair SWITCH_INPUT0+
X1.3 X3 Blue GND
X1.6 X4 White and
orange
Twisted pair SWITCH_INPUT1+
X1.7 X5 Orange GND
X1.10 X6 White and
green
Twisted pair RS485_TX-
X1.11 X7 Green RS485_TX+
X1.13 X8 White and
brown
Twisted pair RS485_RX-
X1.14 X9 Brown RS485_RX+
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.
RRU
User Guide 2 RRU and SRXU Hardware
Issue 01 (2008-04-18) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd
2-19

Huawei BTS3802C Specifications

General

Brand	Huawei
Model	BTS3802C
Category	Network Hardware
Language	English