CHAPTER 5: Measurements
Press 
(Pairs) to view Attenuation/NEXT graphs for other pair combinations.
Press ESC to exit the ACR screen.
5.3.8RESISTANCE
Resistance is measured in a loop through each pair in the cable. In a
The RESISTANCE screen displays the Resistance Limit and the test results in
ohms for each pair. The result for each pair is tagged with a 
PASS or
FAIL indicator.
Press ESC to exit the RESISTANCE screen.
5.3.9 POWER SUM NEXT
Like NEXT, Power Sum NEXT is a measurement of electromagnetic coupling between adjacent pairs. While NEXT reports test results for each pair combination, Power Sum NEXT is calculated from NEXT for individual pair combinations and takes into account the crosstalk from multiple transmission pairs. When reporting Power Sum NEXT, OMNIScanner displays results for pairs, rather than pair combinations. The PS NEXT measurement is required to assure proper operation of networks employing simultaneous transmission on more than one pair in a link (Gigabit Ethernet, for example).
In the POWER SUM NEXT screen, the worst case margin for all near and far pairs is shown at the top of the screen.
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