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