After a cable analyzer (a frequency-based cable tester) Autotest function has failed a cable link, verify the following:

-Has the tester been appropriately configured for this Autotest?
-Has the correct link type been selected (Permanent Link or Channel)?

Are you using the appropriate cable interface adapter for this test? Some third generation testers required interface adapt¬ers to match the installed cable for

Permanent Link testing.

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Are you using the most current version of tester software? As noted above, standards change.

Do the cable and connectors used in the installation match the performance settings of the Autotest selected?

If the link is a TIA Category 6/ISO Class E, or Category 6A/ISO Class EA installation, are all components matched appro¬priately? Some Category 6/ISO Class E and Category 6A/ISO Class EA links installed before the standards body voted to approve that cable standard may not operate at the specified performance level when mixed with other vendor’s materials.

Is the tester at ambient temperature and in calibration? Temperature will affect test results.

Are the tester’s batteries adequately charged? Some test results become unreliable when the tester batteries fall below 20% of full charge on some cable testers.