Return Loss; Equal Level Far-End Crosstalk (Elfext); Attenuation-To-Crosstalk Ratio (Acr); Power Sum Next (Psnext) - Agilent Technologies WireScope 350 User Manual

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Return Loss

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Equal Level Far-End Crosstalk (ELFEXT)

Attenuation-to-Crosstalk Ratio (ACR)

Power Sum NEXT (PSNEXT)

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Return Loss measures the degradation of signal over all four pairs from
each end of the tested cable run.
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TIA level III measurement parameter and tester accuracy requirements per
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ELFEXT measures far-end coupling between pairs in the tested cable,
for all pair combinations.
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TIA Category 6 Draft – Addendum to TIA-568-B and ISO/IEC 61935-1 draft
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The ratio of the measured attenuation and the near-end crosstalk
(NEXT) at each frequency point.
Computed for each pair by calculating a power sum total of the
pair-to-pair NEXT from the three other pairs.
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