BBU
Alarm
Port
Pin on the
RJ45
Connecto
r
Wire
Color
Wire
Type
Pin on the
RJ45
Connecto
r
Description
X1.4
Blue
X2.4
Boolean input 2- (GND)
X1.7
White and
brown
Twisted
pair
X2.7
Boolean input 3+
X1.8
Brown
X2.8
Boolean input 3- (GND)
7.8.6 ELU Signal Cable
The ELU signal cable is used by the ELU to report the cabinet type to the HEUB.
Exterior
shows an ELU signal cable.
Figure 7-43
ELU signal cable
(1) RJ45 connector
Cable Description
describes the pin assignment for the wires of an ELU signal cable.
Table 7-39
Pin assignment for the wires of an ELU signal cable
X1 End
X2 End
Color
Type
X1.1
X2.1
White
Twisted pair
X1.2
X2.2
Orange
X1.3
X2.3
White
Twisted pair
X1.6
X2.6
Green
X1.5
X2.5
White
Twisted pair
X1.4
X2.4
Blue
X1.7
X2.7
White
Twisted pair
BTS3900C (Ver.C)
Hardware Description
7 BTS3900C Cables
Issue 03 (2013-05-27)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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