Chapter 6: Diagnose Copper Test Failures
Causes of Twisted Pair Test Failures
187
When the FAULT INFO Tab Does Not Show
To provide fault information, the tester needs TDR, crosstalk, and
other results to do frequency and time domain analysis. For the
settings and cables listed below, the FAULT INFO tab does not
show because the tester cannot get the measurements it needs:
The HDTDR/HDTDX setting on the TEST SETUP screen is set to
Never.
The Cable Type is set to Cat 3, Class F, Class F
A
, or Class II.
The link has only 2 pairs.
The link has a wire map failure.
For the cables listed above, if you set HDTDR/HDTDX on the TEST
SETUP screen to Fail/Pass* only, you can use the HDTDR and
HDTDX analyzers to help you identify and locate faults. See “The
HDTDR Analyzer” on page 194 and “The HDTDX Analyzer” on
page 200.
Causes of Twisted Pair Test Failures
Table 8. Causes of Twisted Pair Test Failures
Wire Map test fails
Open
Wires connected to wrong pins at connector or punchdown blocks
Bad connection
Damaged connector or cable
Wrong application for the cable or the wrong outlet configuration is
selected
Short
Damaged connector or cable
Conductive material stuck between pins at connector
Incorrect termination at a connector
Wrong application for the cable
To Next Page
Loading...
