Twisted-Pair Cable/Connector Pin-Outs - HP J3245A Installation And Configuration Manual

Cables and Connectors

Twisted-Pair Cable/Connector Pin-Outs

Twisted-Pair Cable/Connector Pin-Outs
Twisted-Pair Cable from Switch-Based MDI-X Module or
Transceiver to an MDI Networked Device
To connect PCs or other MDI network devices to an MDI-X port on the switch,
use a "straight-through" cable. The twisted-pair wires must be twisted through
the entire length of the cable. The wiring sequence must conform to AT&T
258A (not USOC). See "Twisted-Pair Cable Pin Assignments" on page A-5 for
a listing of the signals used on each pin.
N o t e
Pins 1 and 2 must be wired to a twisted pair.
Pins 3 and 6 must be wired to a twisted pair.
Pins 4, 5, 7, and 8 are not used in this application, although they may
be wired in the cable.
A-3