Table 2-15
Pin assignment for the wires of the AISG extension cable
X1 End
X2 End
Wire Color
Wire Type
Remarks
X1.1
X2.1
White and blue
Twisted pair
+12 V
Blue
X1.7
X2.7
White and orange Twisted pair
DC Return A
Orange
X1.3
X2.3
White and green
Twisted pair
RS485 B
X1.5
X2.5
Green
RS485 A
X1.6
X2.6
White and brown Twisted pair
+24 V
Brown
Installation Position
The AISG female connector is linked to the corresponding connector on the RCU, and the AISG
male connector is linked to the AISG female connector of the AISG multi-wire cable.
2.4.5 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.
shows the CPRI optical cable.
Figure 2-19
CPRI optical cable
(1) DLC connector
(2) Label on the fiber tail
(3) Fiber tail
Pin Assignment
describes the pin assignment for the fiber tails of the CPRI optical cable.
RRU
User Guide
2 RRU and SRXU Hardware
Issue 01 (2008-04-18)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd
2-23