Gps Clock Signal Cable; Figure 4-23 Gps Clock Signal Cable - Huawei BBU3900 Hardware Description

4 BBU3900 Cables
BBU
Alarm
Port

4.17 GPS Clock Signal Cable

The GPS clock signal cable is an optional cable that transmits GPS clock signals from the GPS
antenna system to the BBU. The GPS clock signals serve as the clock reference of the BBU.
Exterior
The GPS clock signal cable has an SMA male connector at one end and an N-type female
connector at the other end, as shown in

Figure 4-23 GPS clock signal cable

(1) SMA male connector
4-24
Pin on the Wire
RJ45 Color
Connecto
r at One
End
X1.3 White and
green
X1.6 Green
X1.5 White and
blue
X1.4 Blue
X1.7 White and
brown
X1.8 Brown
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Copyright © Huawei Technologies Co., Ltd.
Wire Pin on the
Type RJ45
Connecto
r at the
Other
End
Twisted X2.3
pair
X2.6
Twisted X2.5
pair
X2.4
Twisted X2.7
pair
X2.8
Figure 4-23.
(2) N-type female connector
BBU3900
Hardware Description
Description
Boolean value input 1+
Boolean value input 1-
(GND)
Boolean value input 2+
Boolean value input 2-
(GND)
Boolean value input 3+
Boolean value input 3-
(GND)
Issue 11 (2010-11-10)