Pin Assignments; Connection; Cable Diagram - HP 2920 Installation And Getting Started Manual

Cabling and Technology Information
Twisted-Pair Cable/Connector Pin-Outs
N o t e
.
B-8
Crossover Twisted-Pair Cable for 10 Mbps or 100 Mbps
Network Connection
The HP Auto-MDIX operation of the 10/100 ports on the switch also allows
you to use crossover cables for all network connections, to PCs, servers or
other end nodes, or to hubs or other switches.
If any of these ports are given a fixed configuration, for example 100 Mbps/
Full Duplex, the ports operate as MDI-X ports, and crossover cables must be
then used for connections to hubs or switches or other MDI-X network
devices.

Cable Diagram

Pins 1 and 2 on connector "A" must be wired as a twisted pair to pins 3 and 6
on connector "B".
Pins 3 and 6 on connector "A" must be wired as a twisted pair to pins 1 and 2
on connector "B".
Pins 4, 5, 7, and 8 are not used in this application, although they may be wired
in the cable.

Pin Assignments

Switch End (MDI-X)
Signal Pins
receive + 1
receive - 2
transmit + 3
transmit - 6
Hub or Switch Port, or Other
MDI-X Port End
Pins Signal
6 transmit -
3 transmit +
2 receive -
1 receive +