Well, then you’ve never done a wiring job for a business or school or govt that requires documented qualification tests on every drop.
But yeah, I assume Forrest is trying to test that his GbE POE doesn’t degrade any of the specs like crosstalk, attenuation, return loss, etc., or to quantify how much you have to derate the 100 meter distance to compensate for inserting the POE? I used to have a Pentascanner, but the Fluke website says that line was EOM in 2004 and EOS in 2008. Way to make me feel old! No idea if the current DSX-5000 can test through the transformers in a gigabit POE, or be convinced to run the qualification tests even if the DC tests fail. From: Mike Hammett Sent: Saturday, February 13, 2016 10:36 AM To: af@afmug.com Subject: Re: [AFMUG] Gigabit "cable validator" which validates *through* a Gigabit PoE Injector? The only thing that matters to me is iPerf. :-) Granted, I'm not creating components and troubleshooting why when they're in place they may not be getting full throughput anymore. ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP -------------------------------------------------------------------------------- From: "Forrest Christian (List Account)" <li...@packetflux.com> To: "af" <af@afmug.com> Sent: Saturday, February 13, 2016 10:33:30 AM Subject: Re: [AFMUG] Gigabit "cable validator" which validates *through* a Gigabit PoE Injector? I'm already doing that, but it doesn't help to verify things like near end crosstalk, insertion loss, etc. etc. etc. It's just a 'everything is fine' vs 'what does the cable look like' test. On Sat, Feb 13, 2016 at 7:09 AM, Mike Hammett <af...@ics-il.net> wrote: The best cable tester I've found is iPerf. ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP ------------------------------------------------------------------------------ From: "Forrest Christian (List Account)" <li...@packetflux.com> To: "af" <af@afmug.com> Sent: Saturday, February 13, 2016 8:02:30 AM Subject: [AFMUG] Gigabit "cable validator" which validates *through* a Gigabit PoE Injector? Ok, everyone..... I'm looking for one or more Gigabit Ethernet testers to test product with which will actually test (signal-wise) a gigabit link for spec conformance.... The catch? It has to work with a gigabit injector in the middle, since it's really about testing the injector's performance instead of a cable. Most of the gigabit cable validators I've seen will completely refuse to run the signal validation tests on a cable which doesn't pass electrical continuity. Unfortunately, once you insert a gigabit injector the cable electrically looks like all 4 pairs are shorted, and there isn't any continuity to the far end. Does anyone have a CAT5 cable tester which works *through* a PoE? Or are willing to test theirs on a (unpowered) injector to see what happens? -- Forrest Christian CEO, PacketFlux Technologies, Inc. Tel: 406-449-3345 | Address: 3577 Countryside Road, Helena, MT 59602 forre...@imach.com | http://www.packetflux.com -- Forrest Christian CEO, PacketFlux Technologies, Inc. Tel: 406-449-3345 | Address: 3577 Countryside Road, Helena, MT 59602 forre...@imach.com | http://www.packetflux.com