When two wires in a pair are connected to opposite pins on the other end, what is this condition called?

The correct term for when two wires in a twisted pair are connected to opposite pins on the other end is known as a "cross pair." This situation arises when the wiring configuration does not maintain the intended pin-to-pin connection, leading to potential issues in network performance, including crosstalk or interference.

In networking, particularly with twisted pair cables such as Cat5e or Cat6, each wire within the pair must be connected to the appropriate pins on the corresponding end of the cable. When this is not done correctly, it results in cross talk, which can corrupt data transmission. Thus, knowing the correct terminology is crucial for diagnosing and resolving wiring issues effectively.

A reverse pair, open pair, or short pair would describe different wiring errors or issues in twisted pair cabling that do not accurately capture the described condition of opposite pin connections. Understanding the landscape of cabling terminology is essential for troubleshooting in networking environments.