Huawei BBU3900 - Page 54

53
Appendix
Pin Assignment for the BBU Signal Cables
b
120-ohm E1 cable
Pin of the DB26 Male Connector Wire Color Wire Type Label
X1.1 Blue
Twisted pair
RX1+
X1.2 White RX1-
X1.3 Orange
Twisted pair
RX2+
X1.4 White RX2-
X1.5 Green
Twisted pair
RX3+
X1.6 White RX3-
X1.7 Brown
Twisted pair
RX4+
X1.8 White RX4-
X1.19 Grey
Twisted pair
TX1+
X1.20 White TX1-
X1.21 Blue
Twisted pair
TX2+
X1.22 Red TX2-
X1.23 Orange
Twisted pair
TX3+
X1.24 Red TX3-
X1.25 Green
Twisted pair
TX4+
X1.26 Red TX4-