Huawei BBU3900 - Figure 4-7 E1;T1 Surge Protection Transfer Cable; Table 4-7 Pin Assignment for the Wires of the E1;T1 Surge Protection Transfer Cable

Figure 4-7 E1/T1 surge protection transfer cable
(1) DB25 male connector (2) DB26 male connector
Pin Assignment
Table 4-7 describes the pin assignment for the wires of the E1/T1 surge protection transfer cable.
Table 4-7 Pin assignment for the wires of the E1/T1 surge protection transfer cable
Pin on the DB26 Male
Connector
Type Pin on the DB25 Male
Connector
X1.20 Twisted pair cable X2.2
X1.19 X2.3
X1.4 Twisted pair cable X2.4
X1.3 X2.5
X1.22 Twisted pair cable X2.6
X1.21 X2.7
X1.6 Twisted pair cable X2.8
X1.5 X2.9
X1.24 Twisted pair cable X2.10
X1.23 X2.11
X1.8 Twisted pair cable X2.12
X1.7 X2.13
X1.1 Twisted pair cable X2.14
X1.2 X2.15
X1.25 Twisted pair cable X2.24
X1.26 X2.25
BBU3900
Hardware Description 4 BBU3900 Cables
Issue 11 (2010-11-10) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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