Huawei BTS3900C User Manual

NOTE
An RCU is a driving motor used for the phase shifter in the RET antenna. It receives control commands from a
base station and runs the commands to drive the stepper motor. Using a gear, the stepper motor drives the
adjustable phase shifter in the antenna and changes the downtilt angle.
Exterior
An AISG multi-wire cable has a waterproof DB9 male connector at one end and a standard AISG
female connector at the other end, as shown in Figure 7-49.
Figure 7-49 AISG multi-wire cable
(1) Waterproof DB9 male connector
(2) Standard AISG female connector
Pin Assignment
Table 7-42 describes the pin assignment for the wires of an AISG multi-wire cable.
Table 7-42 Pin assignment for the wires of an AISG multi-wire cable
X1 End (Pin of the
Waterproof DB9
Male Connector)
X2 End (Pin of the
Standard AISG
Female Connector)
Color Type Description
X1.1 X2.1
White and
blue
Twisted
pair
+12 V
Blue
X1.3 X2.3 White and
orange
Twisted
pair
RS485 B
X1.5 X2.5 Orange RS485 A
X1.4 X2.4 White and
green
- GND
X1.9 and X1.4 are
interconnected.
- - - GND
- X2.1 and X2.6 are
interconnected.
- - +12 V
BTS3900C (Ver.C)
Hardware Description 7 BTS3900C Cables
Issue 03 (2013-05-27) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
173

Huawei BTS3900C Specifications

General

Brand	Huawei
Model	BTS3900C
Category	Server
Language	English