Fluke CableAnalyzer DSX-5000, Техническое справочное руководство, Страница: 228 / 700

Versiv Series Cabling Certification Product Family
Technical Reference Handbook
192
Causes of Coaxial Test Failures
TCL or ELTCTL gives a FAIL, FAIL*, or PASS* result

Unequal untwisting of pairs at a connector

Poorly designed connectors

Poorly designed cable

Wrong test standard selected
CDNEXT gives a FAIL, FAIL*, or PASS* result

Unequal untwisting of pairs at a connector

Poorly designed connectors

Wrong test standard selected
Table 9. Causes of Coaxial Test Failures
Resistance test gives a FAIL, FAIL*, or PASS* result

Link is too long (may need to remove coiled service loops)

Bad connection due to oxidized or loose contacts

Wrong type of patch cord used

For tests on terminated cable, the terminator’s resistance is incorrect
Notes
The HDTDR analyzer can help you locate the cause of
a resistance failure. See “The HDTDR Analyzer” on
page 194.
To do the resistance test continuously while you look
for a fault, tap TOOLS > Single Tests > Resistance.
Length gives a FAIL result

Link is too long (may need to remove coiled service loops)

NVP is set incorrectly
Note
To do the length test continuously while you look for
a fault, tap TOOLS
> Single Tests > Length.
Table 8. Causes of Twisted Pair Test Failures (continued)