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OMNISCANNER
propagates down the cable (NVP), OMNIScanner then calculates the length of the
cable.
Skew is the difference between the delay on the longest and shortest wirepairs.
The Length/Delay screen shows the test result information for all pairs.
The Limit is displayed at the top of the screen.
The pairs are displayed in the first column followed by small icons to indicate
whether the pair is open or short.
The measured Length and the Delay are displayed for each pair. The result for
the shortest pair is tagged with a PASS or FAIL indicator.
The length result can be displayed in meters or feet (see Chapter 4: Setup User
Options).
Delay is displayed in nS (nanoseconds).
The Skew value and the Skew limit are displayed right below the pairs.
Press ESC to exit the LENGTH/DELAY screen.
5.3.3 NEXT
The NEXT (Near End Crosstalk) function measures the electromagnetic coupling
that occurs between pairs at the near end. OMNIScanner and OMNIRemote allow
NEXT to be measured at both ends of the link without having to swap ends.
OMNIRemote functions as a terminator while OMNIScanner transmits a signal
which is monitored on the receive pair. The received signal is compared to the
transmitted signal and the difference is reported as the NEXT value in dB. When