54
Appendix
Pin Assignment for the BBU Signal Cables
b
Pin of the RJ45
Connector
Wire Color Pins of X2,
X3, X4, and
X5
Wire Type Port on the
APMI
X1.1 White X2 Twisted pair TX+
X1.2 Orange X3 Twisted pair TX-
X1.4 Blue X4 Twisted pair RX+
X1.5 White X5 Twisted pair RX-
Monitoring signal cable between the APMI and the BBU
Pin on the RJ45
Connector
Pin of the DB9
Male Connector
Wire Color Wire Type Port on the
APMI
X1.1 X2.3 White Twisted pair TX+
X1.2 X2.7 Orange Twisted pair TX-
X1.4 X2.2 Blue Twisted pair RX+
X1.5 X2.6 White Twisted pair RX-
EMUA monitoring signal cable
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