Huawei BTS3900C Hardware Description page 163

BTS3900C (Ver.C)
Hardware Description
Pin on the DB26
Male Connector
X1.5
X1.6
X1.7
X1.8
X1.19
X1.20
X1.21
X1.22
X1.23
X1.24
X1.25
X1.26
Table 7-28 Pin assignment for the wires of the 120-ohm E1 twisted pair cable
Pin on the DB26
Male Connector
X.1
X.2
X.3
X.4
X.5
X.6
X.7
X.8
X.19
X.20
X.21
Issue 03 (2013-05-27)
Type
Tip
Ring
Tip
Ring
Tip
Ring
Tip
Ring
Tip
Ring
Tip
Ring
NOTE
(1) "Tip" refers to a wire in the E1 coaxial cable and "Ring" refers to an external conductor of the cable.
Wire Color
Blue
White
Orange
White
Green
White
Brown
White
Gray
White
Blue
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Copyright © Huawei Technologies Co., Ltd.
(1) Coaxial Unit No.
5
7
2
4
6
8
Wire Type
Twisted pair
Twisted pair
Twisted pair
Twisted pair
Twisted pair
Twisted pair
7 BTS3900C Cables
Wire Label
RX3+
RX3-
RX4+
RX4-
TX1+
TX1-
TX2+
TX2-
TX3+
TX3-
TX4+
TX4-
Wire Label
RX1+
RX1-
RX2+
RX2-
RX3+
RX3-
RX4+
RX4-
TX1+
TX1-
TX2+
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