Appendix A
Wiring Specifications
A.1
ODU-IDU Cable
The ODU-IDU cable is standard CAT-5, 4 twisted-pair 24 AWG FTP.
The ODU-IDU cable is terminated in RJ-45 connectors on both ends. It
is covered by a cable gland on the ODU side for hermetic sealing.
Table A-1
shows the connector pinout.
Table A-1. ODU-IDU Cable Connector Pinout
IDU RJ-45
Wire Color
Function
ODU RJ-45
1
Green/White
Ethernet (RxN)
1
2
Green
Ethernet (RxT)
2
3
Orange/White
Ethernet (TxT)
3
4
Blue
Power (+)
4
5
Blue/White
Power (+)
5
6
Orange
Ethernet (TxN)
6
7 Brown/White
Power (
−
)
7
8 Brown Power (
−
)
8
Figure A-1. RJ-45 wiring for IDU-ODU cable
ODU-IDU Cable
A-1
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