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Specifications
Twisted-Pair Cable/Connector Pin-Outs
N o t e
A-10
Crossover Twisted-Pair Cable for
10 Mb/s or 100 Mb/s Network Connection
The 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 Mb/s/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 +
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