Chapter 5
Cable Test Descriptions
Page 5-7
Marginal Test Results
A PASS* or FAIL* result indicates that a measured NEXT 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, replace it with a
Level II-rated Performance Module and retest. If the test
result is still marginal, or if you are already using a Level II-
rated Performance Module, 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. Correct installation if possible,
and retest.
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