Appendix C: Examples of UTP Cable Faults

During the wire map test, you probably noticed that the indica- tor lights on the remote probe (connected to the far end of the cable) continue to flash. This is another indication of a problem.

If a cable has a short in the middle, the wire map looks like this:

Figure C-7. Bad cable: wire map of shorted pair.

The LPV is both a LP verifier and troubleshooting tool. It identifies the faults and gives you the distance to the opens, shorts, and split pairs.

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Black Box TS580A-R4, BLACK BOX CAT5/5e/6 LAN Performance Verifier manual 78 724-746-5500 blackbox.com