Back in the days of 10BaseT coax runs with BNC T-couplers and terminators, I used a BNC-banana plugs adapter on a cheap VOMeter to check if visibility was to one terminator or two. (50Ω if one, broken, or 25Ω=2 in parallel if properly configured.)
> Now, if any of the wiring between the wall and the patch panel is a > problem, is there similar testing gear to check on the wiring itself > (i.e Cat 6, PoE, etc) to help validate no kinks or broken wires? A DC voltmeter with RJ-45 modular plug on a pigtail should let you check for PoE ? (shouldn't that properly be an RP-45?) I do have a pocket-size jack-checker that indicates presence of data and if 10G or 100G if inserted into a dubious RJ45 ethernet jack. With a RJ45 double-jack adapter (sold as cable extender?) it would report if cable is passing data beyond the wall. Not sure if i got it at MicroCenter or on-line. Wasn't expensive. Easily paid for itself checking conference room jacks to see which was live ! To test for kinks, you need a Time Domain Reflectometer (or a specialized Network diag instrument with a similar feature). A decent old-school oscilloscope can be jerry-rigged into a TDR with very few additional parts, you just tee the sweep into the test port and watch for the reflection. You need to know the velocity factor to translate from time to distance, since C=3E8m/s is only in (near)vacuum; there are tables around. 73 de n1vux -- Bill Ricker [email protected] https://www.linkedin.com/in/n1vux _______________________________________________ Discuss mailing list [email protected] http://lists.blu.org/mailman/listinfo/discuss
