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Author Topic: Cable Diagnostics: Short and Open Errors  (Read 7323 times)


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Cable Diagnostics: Short and Open Errors
« on: July 16, 2016, 05:03:57 AM »

I have a small office that is experiencing issues with our VOIP phones (dropped packets) so I connected to our DGS-1224TP's web interface and ran the built-in cable test and found many errors. Short in cable (generally on pair 3 and 4). Open in cable (generally on pair 3 and 4) and some runs that have both a Short and Open on the cable. Does this indicate a problem, or might this be acceptable?

Of the 23 ports in use, only 5 reported as OKAY. Of note, all 5 are gigabit devices and of the 18 ports with Shorts and Opens, 17 are 10/100 devices. Thanks.
« Last Edit: July 16, 2016, 06:28:48 AM by CarbonGuy »


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Re: Cable Diagnostics: Short and Open Errors
« Reply #1 on: July 17, 2016, 11:52:50 AM »

Might start swapping any effected cabling out and see if this helps you troubleshoot weather if the cable issue or switch issue.
Cable: 1Gb/50Mb>NetGear CAX80>DIR-882>HP 24pt Gb Switch. COVR-1202/2202/3902,DIR-2660/80,3xDGL-4500s,DIR-857,835,827,815,890L,880L,868L,836L,810L,685,657,3x655s,645,628,601,DNR-202L,DNS-345,DCS-933L,936L,960L and 8000LH.