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Multiple Choice

Power Sum ELFEXT accounts for cross-talk across how many pairs?

Power Sum ELFEXT focuses on the total cross-talk that a given pair experiences by combining the effects from all other pairs in the same cable. In a multi-pair system, every other pair can contribute some crosstalk, and the power-sum approach adds these contributions in linear power terms to yield an overall ELFEXT level at the far end. This reflects how interference accumulates in real installations, where multiple pairs act as simultaneous sources of crosstalk. So it accounts for the combined crosstalk from multiple pairs.

Power Sum ELFEXT focuses on the total cross-talk that a given pair experiences by combining the effects from all other pairs in the same cable. In a multi-pair system, every other pair can contribute some crosstalk, and the power-sum approach adds these contributions in linear power terms to yield an overall ELFEXT level at the far end. This reflects how interference accumulates in real installations, where multiple pairs act as simultaneous sources of crosstalk. So it accounts for the combined crosstalk from multiple pairs.