Figure 2-21
2-hole terminal
Installation Position
One end of the PGND cable is connected to the grounding bolt on the SRXU, and the other end
is connected to the grounding bolt on the RRU3804.
2.4.2 Power Cable of the SRXU
The SRXU uses a shielded DC power cable. The cable feeds power from the RRU3804 to the
SRXU.
Appearance
Both ends of the cable are waterproof DB9 connectors, as shown in
Figure 2-22
.
Figure 2-22
DC power cable
Pin Assignment
Table 2-22
describes the pin assignment for the wires of the DC power cable.
Table 2-22
Pin assignment for the wires of the DC power cable
X1 End
X2 End
Wire Color
Wire Type
Remarks
X1.6
X2.6
White/blue
Twisted pair
DC power cable
Blue
X1.7
X2.7
White/orange
Twisted pair
GND
Orange
Installation Position
One end of the DC power cable is connected to the RET/PWR_SRXU port at the bottom of the
RRU3804, and the other end is connected to the PWR_SRXU socket at the bottom of the SRXU.
2.4.3 AISG Multi-Wire Cable of the RRU3804/SRXU
The five-meter-long AISG multi-wire cable connects the RRU3804/SRXU to the Remote
Control Unit (RCU). If both RRU3804 and SRXU are installed, the AISG multi-wire cable only
connects the SRXU and the RCU. This cable is optional.
2 RRU3804 and SRXU Hardware
RRU3804
User Guide
2-28
Huawei Technologies Proprietary
Issue 01 (2007-11-29)