PS ELFEXT measures which of the following?

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Multiple Choice

PS ELFEXT measures which of the following?

Power Sum Equal Level ELFEXT looks at how much crosstalk from all the other pairs adds up on a given target pair at the far end. The test drives each interfering pair at the same level, measures the ELFEXT on the target pair at the far end, and then sums those ELFEXT values in power terms. This gives a single figure for the total multi-pair crosstalk that the target pair would experience in a real multi-pair installation. This is distinct from other measurements: near-end crosstalk is NEXT, which assesses crosstalk at the near end; current leakage would relate to insulation leakage; and latency refers to propagation delay. The option describing the summed ELFEXT from all other pairs into the target pair at the far end is the one that matches PS ELFEXT.

Power Sum Equal Level ELFEXT looks at how much crosstalk from all the other pairs adds up on a given target pair at the far end. The test drives each interfering pair at the same level, measures the ELFEXT on the target pair at the far end, and then sums those ELFEXT values in power terms. This gives a single figure for the total multi-pair crosstalk that the target pair would experience in a real multi-pair installation.

This is distinct from other measurements: near-end crosstalk is NEXT, which assesses crosstalk at the near end; current leakage would relate to insulation leakage; and latency refers to propagation delay. The option describing the summed ELFEXT from all other pairs into the target pair at the far end is the one that matches PS ELFEXT.

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