Cables; Twisted-Pair Cable And Pin Assignments - SMC Networks SMC7800A Installation Manual

Twisted-Pair Cable and Pin Assignments

For 10BASE-T and 100BASE-TX connections, the 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: DO NOT plug a phone jack connector into any RJ-45 port.
Caution: Each wire pair must be attached to the RJ-45 connectors in a
specific orientation. (See "10BASE-T/100BASE-TX Pin Assignments"
on page B-2 for an explanation.)
The figure below 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.
Use only twisted-pair cables with RJ-45 connectors that
conform with FCC standards.
Figure B-1 RJ-45 Connector Pin Numbers
A
PPENDIX
8
8
1
C
ABLES
1
B
B-1