Which wiring standard defines the pinouts for a crossover cable connection?

The wiring standard that defines the pinouts for a crossover cable connection is based on the T568A and T568B standards. A crossover cable is specifically designed to connect two devices directly, such as two computers or two switches, without needing a hub or switch in between. In a crossover configuration, the transmit and receive pairs are swapped, which is accomplished by using T568A pinouts on one end and T568B pinouts on the other end of the cable.

This setup allows for proper communication between the two devices, as the transmit pins on one end connect to the receive pins on the other end. Therefore, identifying this specific use of T568A and T568B provides clarity on how crossover cables are structured and illustrates the practical application of these wiring standards in networking environments.

The other options, such as RJ-45 and EIA/TIA 568, do not specifically reference the crossover configuration's pinout arrangement, while T568B to T568B describes a straight-through connection rather than a crossover. This highlights the importance of understanding how specific wiring configurations serve distinct networking purposes.