LANcat
User Manual
Page 7-20
Common
Causes of
Attenuation
Solutions
Sub-standard
components
It is common to make the mistake of using
couplers or lower grade hardware and/or
cable than the minimum expected. The
highest category your installation will
comply to is that of the lowest category
component you have in your segment.
The chart below describes some attenuation problems and their
possible solutions.
Test Results
Possible Solutions
Attenuation test
fails for one or
more pairs
Compare actual to expected values to
confirm misconformance.
Check that the length is within specification
in applications where attenuation is a
maximum limit only. If cable is too long,
correct as necessary.
Follow procedure for “NEXT test fails for
one or more pairs” to locate fault.
Attenuation test
fails
intermittently
Compare actual results to expected results.
Values may be borderline.
Re-terminating a connection could correct
problem.
Follow procedure for “NEXT test fails for
one or more pairs” to locate fault.
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