Huawei RRU - CPRI Optical Cable; Figure 2-7 -48 V DC Power Cable; Table 2-5 Pin Assignment for the Wires of the -48 V DC Power Cable (North American Standard); Table 2-6 Pin Assignment for the Wires of the -48 V DC Power Cable (European Standard)

Figure 2-7 –48 V DC power cable
Pin Assignment
The -48 V DC power cable is a 2-wire cable. Table 2-5 and Table 2-6 describes the pin
assignment for the wires of the -48 V DC power cable.
Table 2-5 Pin assignment for the wires of the –48 V DC power cable (North American Standard)
Wire Type Wire Color
NEG Blue
RTN Black
Table 2-6 Pin assignment for the wires of the –48 V DC power cable (European Standard)
Wire Type
Wire Color
NEG Blue
RTN Brown
Installation Position
At one end of the cable, the OT terminal on the blue wire is connected to the NEG(-) port on the
cabling cavity of the RRU, and the OT terminal on the black or brown wire is connected to the
RTN(+) port on the cabling cavity of the RRU.
At the other end of the cable, a proper terminal is made depending on field requirements and is
then connected to the power supply on site.
2.3.3 CPRI Optical Cable
This describes the CPRI optical cable. It connects the BBU3836 to the RRU and transmits CPRI
signals between them.
Appearance
The CPRI optical cable is a multi-mode 2-wire cable with DLC connectors at both ends.
Figure 2-8 shows the CPRI optical cable.
2 RRU and SRXU Hardware
RRU
User Guide
2-12 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd
Issue 01 (2008-04-18)