Cable
One End
The other End
BNC male connector
SMZ male connector
SMZ female connector
Pin Assignment
and
describe the pin assignment for the wires of the E1/T1 cable.
NOTE
, "Tip" refers to a wire in the E1 coaxial cable, and "Ring" refers to an external conductor of
the cable.
Table 4-5
Pin assignment for the wires of the 75-ohm E1 coaxial cable
Pins of the DB26
Male Connector
Wire Type
Coaxial Series No.
Cable Label
X1.1
Tip
1
RX1+
X1.2
Ring
RX1-
X1.3
Tip
3
RX2+
X1.4
Ring
RX2-
X1.5
Tip
5
RX3+
X1.6
Ring
RX3-
X1.7
Tip
7
RX4+
X1.8
Ring
RX4-
X1.19
Tip
2
TX1+
X1.20
Ring
TX1-
X1.21
Tip
4
TX2+
X1.22
Ring
TX2-
X1.23
Tip
6
TX3+
X1.24
Ring
TX3-
X1.25
Tip
8
TX4+
X1.26
Ring
TX4-
BBU3900
Hardware Description
4 BBU3900 Cables
Issue 11 (2010-11-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
4-9
Summary of Contents for BBU3900
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