Installation and Reference for the BayStack 70 Series 10/100 Ethernet Switches
Straight-Through and Crossover Cables
For two devices to communicate, the transmitter of each device must be connected to the receiver of the other device. The crossover function is usually implemented internally as part of the circuitry in the device. Computers and workstation adapter cards are usually
Most hub and switch ports are configured as
Figure B-1 illustrates a straight-through twisted-pair cable.
Transmit 1
2
3 Receive 6
MDI port
Twisted pairs
1Receive
3
6 Transmit
2008.8
Figure B-1. Straight-Through Twisted-Pair Cable
Figure B-2 illustrates a crossover twisted-pair cable.
1
Receive
2
3 Transmit 6
1Receive
3
6Transmit
7666EA
Figure B-2. Crossover Twisted-Pair Cable
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