Figure 3-8
Exterior of a feeder
(1) DIN male connector
3.7 AISG Multi-Wire Cable
An AISG multi-wire cable connects an RRU and an AAU to transmit control signals from a base
station to an RET antenna. When the RRU is connected to the RET antenna, an AISG multi-
wire cable transmits RS485 signals. The length of an AISG multi-wire cable is 5 m (16.40 ft).
NOTE
l
An AAU contains built-in remote control units (RCUs).
l
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 commands to drive the stepper motor. Using a gear, the stepper motor
drives the adjustable phase shifter in the antenna to change the downtilt of the antenna.
Exterior
The following figure shows the exterior of an AISG multi-wire cable.
Figure 3-9
Exterior of an AISG Multi-wire cable
(1) Waterproof DB9 male connector
(2) Standard AISG female connector
Description
The following table describes an AISG multi-wire cable.
AAU3902
Hardware Description
3 AAU Cables
Issue 06 (2014-07-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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