User Manual

Appendix C. Examples of cable faults

A good cable: A cable that passes its ﬁ rst set of cable tests will

have summary screen similar to this:

Length / Timing

summary screen

of a good cable

LENGTH = 201'

DELAY 304NS PASS

EXIT REVIEW

Bad cable (Split pair): If errors are found, they will be displayed.

Here are some examples of screens with bad cables.

12> 154' SPLIT

36> 154' SPLIT

45> 330'

78> 331'

EXIT DETAILS

Bad cable:

Split pairs

at 154'

The screen shows a 330’ cable with SPLIT pairs at 154’. If the cable

goes through a wiring closet, it is possible the SPLIT pairs are in the

closet (154’ away). This screen shows one of the advantages the

RWC has over testers costing thousands of dollars more. The RWC

shows the distance to the SPLIT pair to help locate it and facilitate

repair. High cost Certiﬁ ers display dBs of cross talk but do not help

you locate the repairable SPLIT pair fault. Turn on the TRACE tones

and use the probe to locate the cable in the wiring closet. Test each

cable associated with the link (patch cables, etc).

SKEW 3NS PASS

APPENDIX