What is the error called when one end of a UTP cable is terminated in T568A and the other in T568B?

When one end of a UTP cable is terminated in T568A and the other end is terminated in T568B, the error is referred to as a transposition. This occurs because the two wiring standards use different color codes for the wire pairs, leading to a mismatched configuration. The transposition of pairs results in the signals not being properly aligned for communication, potentially causing connectivity issues and network performance degradation.

In a properly terminated UTP cable, both ends should use the same wiring standard—either T568A or T568B—to ensure that the pinouts correspond correctly to the intended pairing. When using different standards, a transposition prevents the correct electrical signals from being transmitted and received effectively, thus creating a failure in network communication.

Understanding the different wiring standards is crucial for troubleshooting network issues related to cabling, and recognizing a transposition helps in diagnosing and correcting cabling setups for optimal performance.