The crossover cable can be used to connect
- Switch to switch
- Hub to hub
- Host to host
- Hub to switch
- Router direct to host
The same four wires are used in this cable as in the straight-through cable; we just connect different pins together. Figure 1 shows how the four wires are used in a crossover Ethernet cable.
Notice that instead of connecting 1 to 1, 2 to 2, and so on, here we connect pins 1 to 3 and 2 to 6 on each side of the cable.