X1 End
X2 End
Wire Color
Wire Type
X1.5
X2.5
White
Twisted pair
X1.4
X2.4
Blue
X1.7
X2.7
White
Twisted pair
X1.8
X2.8
Brown
5.8.2 Monitoring Signal Cable for the PSU (DC/DC)
The monitoring signal cable for the PSU (DC/DC) is used for the BBU to monitor the power
status of the PSUs and receive related alarms.
Exterior
The blue and white wires of the monitoring cable is used for monitoring the power status of the
PSUs. The other wires are tied to the column of the cabinet.
shows the monitoring
signal cable for the PSU (DC/DC).
Figure 5-110
Monitoring signal cable for the PSU (DC/DC)
(1) Monitoring signal cable for the PSU (DC/DC)
5.8.3 In-Position Signal Cable for the PSU (DC/DC)
The in-position signal cable for the PSU (DC/DC) is used for the BBU to monitor the in-position
status of the PSU.
Exterior
shows the in-position signal cable for the PSU (DC/DC).
5 BTS3900 Cables
BTS3900
Hardware Description
5-82
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 04 (2011-02-15)