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Appendix CCables and Pinouts

Twisted-Pair Cable Assignments

For 10/100BASE-TX connections, a twisted-pair cable must have
two pairs of wires. Each wire pair is identified by two different
colors. For example, one wire might be green and the other,
green with white stripes. Also, an RJ-45 connector must be
attached to both ends of the cable.
Caution: Each wire pair must be attached to the RJ-45
connectors in a specific orientation.
Caution: DO NOT plug a phone jack connector into a power
injector RJ-45 port. Use only twisted-pair cables with
RJ-45 connectors that conform with FCC standards.
The following figure illustrates how the pins on the RJ-45
connector are numbered. Be sure to hold the connectors i n the
same orientation when attaching the wires to the pins.
1
88
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