Exterior
An RF jumper has a Type N male connector at both ends, as shown in Figure 3-10.
Figure 3-10 RF jumper
(1) Type N male connector
3.9 RRU AISG Multi-Wire Cable
This section describes a remote radio unit (RRU) AISG multi-wire cable with the length of 5 m.
It connects an RRU and a remote control unit (RCU) to transmit control signals from an eNodeB
to the remote electrical tilt (RET) antenna. When the RRU is connected to the RET antenna, an
AISG multi-wire cable transmits RS485 signals.
NOTE
An RCU is a driving motor used for the phase shifter in the RET antenna. It receives control commands from
an eNodeB 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 waterproofed DB9 male connector at one end and a standard
AISG female connector at the other end, as shown in Figure 3-11.
Figure 3-11 AISG multi-wire cable
1. DB9 waterproof male connector
2. Standard AISG female connector
DBS3900
RRU3252/RRU3256 Hardware Description 3 RRU Cables
Issue Draft A (2012-11-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
19
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