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Split wire pairs (Split Pairs) are detected by specific patterns of contradictory NEXT
values (Near End Cross-Talk).
6.7
Length Test
This test determines the length of wire pairs to ensure that the recommended limits for the
selected cable are complied with. Depending on the measurement unit selected in
"Preferences", the length is indicated in Foot or Meter.
6.7.1
Length Test Error
Minor length differences can occur between the wire pairs of a cable due to small NVP
differences, as well as length differences caused by transposition. A failure exists if the
electronically measured cable length deviates too much from the actual length.
6.8
Resistance Test
This test determines the loop resistance of the individual wire pairs. This ensures that the
total loop resistance does not exceed the recommended limits. For each wire pair, the
results are displayed as resistance value in ohm, together with the reference limit for the
cable type.
LanTEK III
User Manual
Fig. 73 Length Test
Fig. 74 Resistance Test
161809 Iss 2
Page61
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