ELFEXT measures which of the following?

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Multiple Choice

ELFEXT measures which of the following?

ELFEXT is a far-end crosstalk metric measured with equal drive on the aggressor pair, so you can compare how much interference appears at the far end regardless of differing source levels. The “Power Sum” aspect means you take the crosstalk contributions from all other pairs and combine them into a single value for the target pair at the far end. In a multi-pair cable, several pairs can inject interference simultaneously, and the Power Sum ELFEXT captures that cumulative effect, giving a realistic picture of worst-case interference. This distinguishes it from other concepts like leakage through insulation, near-end crosstalk, or transmission delay, which are different phenomena.

ELFEXT is a far-end crosstalk metric measured with equal drive on the aggressor pair, so you can compare how much interference appears at the far end regardless of differing source levels. The “Power Sum” aspect means you take the crosstalk contributions from all other pairs and combine them into a single value for the target pair at the far end. In a multi-pair cable, several pairs can inject interference simultaneously, and the Power Sum ELFEXT captures that cumulative effect, giving a realistic picture of worst-case interference. This distinguishes it from other concepts like leakage through insulation, near-end crosstalk, or transmission delay, which are different phenomena.

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