Testing Ethernet - eviltoast

I did a run of Ethernet and had a single cable not showing up on the tester. Is there a way to see if it is the termination or if The cable got damaged while routing it.

  • Kv603@alien.topB
    link
    fedilink
    English
    arrow-up
    1
    ·
    1 year ago

    Is there a way to see if it is the termination or if The cable got damaged while routing it.

    Yes.

    Better testers have a “cable length” mode, this can show approximately where the signal is interrupted.

    1. Mid-priced cable testers, when they offer this mode, use capacitance. This is inexact, but will likely suffice for your needs.

    2. Expensive test tools may instead have a Time Domain Reflectometer (TDR). Prices range from a couple hundred bucks to well into the thousands.

    Either way, test the cable from each end, and if the length of the faulty pair is different when testing from one termination than from the other, that should tell you if the problem is in the termination or in the wall.