GigaFast Ethernet
Appendix A
Connection between NIC card and Hub
Connection between Hub and Hub
A straight-through cable, wire 1, 2, 3, and 6 at one end of the cable are also
wires 1, 2, 3, and 6 at the other end. The straight through cable is used in
connecting the NIC card and the hub.
In a crossover cable, the orders of the wires change from one end to the other.
Wire 1 becomes 3, and 2 becomes 6. The crossover cable is used in connecting
hubs directly.
Wire
Becomes
1
1
2
2
3
3
6
6
Straight Through Cabling
Wire
Becomes
1
3
2
6
3
1
6
2
Crossover Cabling