Figure 4-21
Monitoring signal cable between the CMUA and the BBU
(1) RJ-45 connector
Pin Assignment
describes the pin assignment for the wires of the monitoring signal cable between
the CMUA and the BBU.
Table 4-17
Pin assignment for the wires of the monitoring signal cable between the CMUA and
the BBU
X1 End
X2 End
Wire Color
Wire 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
X1.8
X2.8
Brown
4.16 BBU Alarm Cable
The BBU alarm cable transmits alarm signals from an external alarm device to the BBU.
Exterior
The BBU alarm cable has an RJ-45 connector at each end, as shown in
. However,
an RJ-45 connector at one end may be removed, and an appropriate terminal may be added
according to the field requirements.
4 BBU3900 Cables
BBU3900
Hardware Description
4-22
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 11 (2010-11-10)
Summary of Contents for BBU3900
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