Why is it important to test for Power Sum (PS) parameters on modern network cabling ? 1GBE applications use all 4 pairs in one or both directions simultaneously PS calculates the effect of any 3 pairs on the 4th pair PS calculates the effect of any 3 pairs on the 4th pair and 1GBE applications use all 4 pairs in one or both directions simultaneously Power Sum Insertion Loss sets the lower limit for 1 and 10 GBE operation
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