ITHELPDESK

Ethernet and Fast ethernet UTP cables use only 2 pairs of wires, one for each direction. one pair of wire is used to transmit & the second pair is used to receive. Usually PC NICs, Routers & wireless access point (Ethernet interface) use pins 1, 2 to transmit data  and pins 3,6  to receive. But switches and hubs use pins 3,6 to transmit data & receives through pins 1,2. If like devices need to be connected with each other, you should use crossover cable.             Where crossover cables are used?               To connect              1) A PC to Router directly.              2)  A PC to Wireless access point (Ethernet Interface).              3) A Router to wireless access poi...