What is Far-End Cross Talk?

Far-End Cross Talk refers to the phenomenon where signals from one wire or pair of wires interfere with the signals being received on an adjacent wire or pair of wires. This typically occurs within multi-pair cable systems where the electromagnetic fields generated by the signals on one pair can induce unwanted voltage in a neighboring pair. This situation is particularly problematic in telecommunications and data networking, as it can lead to degraded signal quality and increased bit error rates.

In this context, the correct answer highlights the interaction that happens when signals are received, indicating that the interference stems from external sources rather than being an inherent property of the wire itself. It reflects the idea that, while signals can interact within the same cable system, Far-End Cross Talk specifically pertains to interactions between different pairs of wires. Understanding this allows professionals to design systems that minimize such interference, ensuring clearer communication and improved performance in data transmission.