What type of wiring issue occurs when two wires from different pairs are incorrectly connected?

The correct answer is related to a wiring issue known as a Cross Pair. This type of problem occurs when wires from different twist pairs are incorrectly connected, creating a situation where signals can interfere with each other because they are not following their intended pathways.

In structured cabling, twisted pair cables are organized in pairs to reduce crosstalk and keep the integrity of the signal. When wires from separate pairs (such as one wire from pair A and one wire from pair B) are mixed together, they can cause significant performance issues, as the specific electrical characteristics designed for each pair are disrupted. This can lead to increased interference and degradation of network performance.

In contrast, understanding the other issues helps paint a clearer picture. A Split Pair, for instance, occurs when the wires of a single pair are separated during installation, leading to potential signal quality issues as well. An Open Pair refers to a condition where a wire is disconnected or broken, resulting in a complete loss of signal on that pair. A Short Pair is when two wires are inadvertently connected together, causing a short circuit that typically results in loss of functionality.

Identifying wiring issues like Cross Pairing is crucial for network installation and troubleshooting to ensure optimal performance and reliability of communication systems.