SMC Networks SMC6724L2 Installation Manual page 50

C
ABLES
Twisted-Pair Cable and Pin Assignments
Caution: DO NOT plug a phone jack connector into any RJ-45
For 100BASE-TX/10BASE-T 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 red and the other,
red 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
Figure B-1 illustrates how the pins on the RJ-45 connector are
numbered. Be sure to hold the connectors in the same orientation
when attaching the wires to the pins.
Figure B-1. RJ-45 Connector Pin Numbers
B-2
port. Use only twisted-pair cables with RJ-45 connectors
that conform with FCC standards.
in a specific orientation. (See "Cabling Guidelines" on
page 4-1 for an explanation.)