Name: Huawei BTS3900C
Brand: Huawei
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Pin on the DB26

Male Connector

Wire Color Wire Type Wire Label

X.22 Red TX2-

X.23 Orange Twisted pair TX3+

X.24 Red TX3-

X.25 Green Twisted pair TX4+

X.26 Red TX4-

Table 7-29 Pin assignment for the wires of the 100-ohm T1 twisted pair cable

Pin on the DB26

Male Connector

Wire Color Wire Type Wire Label

X.1 Blue and white Twisted pair RX1+

X.2 White and blue RX1-

X.3 Orange and white Twisted pair RX2+

X.4 White and orange RX2-

X.5 Green and white Twisted pair RX3+

X.6 White and green RX3-

X.7 Brown and white Twisted pair RX4+

X.8 White and brown RX4-

X.19 Gray and white Twisted pair TX1+

X.20 White and gray TX1-

X.21 Blue and red Twisted pair TX2+

X.22 Red and blue TX2-

X.23 Orange and red Twisted pair TX3+

X.24 Red and orange TX3-

X.25 Green and red Twisted pair TX4+

X.26 Red and green TX4-

7.6.2 E1/T1 Surge Protection Transfer Cable

This section describes the E1/T1 surge protection transfer cable connecting the UELP to the

transmission board. This cable is optional. The length of an E1/T1 surge protection transfer cable

is 0.65 m (2.13 ft).

BTS3900C (Ver.C)

Hardware Description 7 BTS3900C Cables

Issue 03 (2013-05-27) Huawei Proprietary and Confidential

155

Huawei BTS3900C User Manual

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