ACR-N shows N/A, not PASS or FAIL in LinkWare | Fluke Networks

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ACR-N affiche S/O et non pas réussite ou échec sous LinkWare

In LinkWare, you may see ACR-N appear with N/A next to it rather than a PASS or FAIL. Un exemple est représenté ci-dessous :
            LinkWare Not Available Result

If you are testing to any ANSI/TIA standard, you will always see N/A (Not Applicable) next to ACR-N since ACR-N is not a requirement in ANSI/TIA standards. It is however reported because many customers expect to see ACR-N on the test report. The limit line on the graph should ideally be black and not red; an enhancement request has been made to engineering.

ISO/IEC standards do require ACR-N. However, you may also see N/A appear if the Insertion Loss of the disturbed pair is less than 4 dB for the entire measurement frequency; often referred to as the 4 dB rule. It only applies to ISO/IEC Permanent Link testing and NOT Channel testing.

There is no corrective action for you to take. Your tester and LinkWare are following the standard you selected.

Auteur : A. Young

Date de création : 2014-2-25

Date de la dernière modification : 2014-2-25

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