Huawei BTS3900C Hardware Description page 184

BTS3900C (Ver.C)
Hardware Description
X1 End (Pin
of the
Standard
AISG Male
Connector)
X1.3
X1.5
X1.6
Issue 03 (2013-05-27)
X2 End (Pin Color
of the
Standard
AISG
Female
Connector)
Orange
X2.3 White and green
X2.5 Green
X2.6 White and brown Twisted pair
Brown
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7 BTS3900C Cables
Type Description
Twisted pair RS485 B
RS485 A
+24 V
175