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Connection between NIC card and Hub
In a straight-through cable, wire 1, 2, 3, and 6 at one end of the cable are the same as
wires 1, 2, 3, and 6 at the other end. The straight through cable is used to connect the
NIC card and the hub.
Table 0-2
Straight Through Cabling
Wire Becomes
1 1
2 2
3 3
6 6
Connection between Hub and 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.
Table 0-3
Crossover Cabling
Wire Becomes
1 3
2 6
3 1
6 2
25