Cable Diagram
Connector A Connector B
Straight-through cable
white/orange
orange/white
white/green
green/white
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
NOTE:
• Pins 1 and 2 on connector “A” must be wired as a twisted pair to pins 1 and 2 on connector “B”.
• Pins 3 and 6 on connector “A” must be wired as a twisted pair to pins 3 and 6 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) Computer, Transceiver, or Other End (MDI)
Signal Pins Pins Signal
receive +
receive -
transmit +
transmit -
transmit +
transmit -
receive +
receive -
Crossover Twisted-Pair Cable for10 Mbps or 100 Mbps 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 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.
42 Cable Diagram
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