LANcat
User Manual
Page 3-6
Marginal Test Results
A PASS* or FAIL* result indicates that a measured NEXT or
attenuation value is close enough to the Test Standard that it is
within the measurement uncertainty of the LANcat. As a
result, the PASS or FAIL judgment is uncertain, and therefore
the LANcat can not determine with confidence that the link
conforms to the Test Standard.
The following steps may be taken in order to resolve link tests
with marginal measured results:
1.
Reduce the measurement uncertainty. If you are currently
using a Level I-rated Performance Module (PM), replace it
with a Level II-rated PM and retest. If the test result is still
marginal, or if you are already using a Level II-rated PM,
proceed to the next step.
2.
Recheck the link installation, focusing on connection points.
Refer to Chapter 7, Testing Twisted Pairs, for suggestions
on causes for excessive NEXT and attenuation. Correct
installation if possible, and retest.
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