Appearance
One end of the AISG multi-wire cable is a waterproof DB9 connector, and the other end is a
standard AISG female connector, as shown in Figure 2-23.
Figure 2-23 AISG multi-wire cable
Pin Assignment
Table 2-23 describes the pin assignment for the wires of the AISG multi-wire cable.
Table 2-23 Pin assignment for the wires of the AISG multi-wire cable
X1 End
X2 End Wire Type Remarks
X1.1 X2.1 Twisted pair +12 V
X1.7 X2.7 Twisted pair DC-GND
X1.9 AISG_Switch
X1.3 X2.3 Twisted pair RS485 -
X1.5 X2.5 RS485 +
Installation Position
If only the RRU3804 is installed, the waterproof DB9 connector is linked to the RET/
PWR_SRXU port at the bottom of the RRU3804, and the standard AISG female connector is
linked to the corresponding connector on the RCU or to the AISG extension cable.
If both the RRU3804 and the SRXU are installed, the waterproof DB9 connector is linked to the
RET port at the bottom of the SRXU, and the standard AISG female connector is linked to the
corresponding connector on the RCU or to the AISG extension cable.
2.4.4 AISG Extension Cable of the RRU3804/SRXU
When the distance between the RCU and the RRU3804/SRXU is longer than 5 m, the AISG
multi-wire cable is not long enough to cover the distance and the AISG extension cable is used.
The AISG extension cable is 15 m long.
RRU3804
User Guide 2 RRU3804 and SRXU Hardware
Issue 01 (2007-11-29) Huawei Technologies Proprietary 2-29
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