Appendix - Huawei BTS3900C Installation Manual

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Appendix

a a
Pin Assignment
E1 Cable
Pin assignment for the wires of the 75-ohm E1 cable
Pin on the DB26
Connector
X1.1
X1.2
X1.3
X1.4
X1.5
X1.6
X1.7
X1.8
X1.19
X1.20
X1.21
X1.22
X1.23
X1.24
X1.25
X1.26
Wire Type
Multi-Wire SN
Tip
1
Ring
Tip
2
Ring
Tip
3
Ring
Tip
4
Ring
Tip
5
Ring
Tip
6
Ring
Tip
7
Ring
Tip
8
Ring
35
Label
R1
R2
R3
R4
T1
T2
T3
T4

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