620
Users Manual
10
Table 5. Twisted Pair Tests
Failures
Detected
No Cable ID With Cable ID
Short X X
Open (near end) X X
Open (far end) X
Length X X
Split Pair X X
Miswire X
Faults X X
To test a cable, do the following:
1. Connect the cable under test to the appropriate
connector on the test tool.
2. Turn the rotary switch to TEST.
3. This step can be omitted if you know the cable
selection is correct for the cable under test. Press
E to check the cable selection. The test tool
displays the cable selection for a few seconds, the
starts the test. “CAL” appears in the second line of
the display if a cable calibration has been performed
for the selected cable type. If the test tool is not set
up for the cable under test, refer to “Preparing the
Test Tool for Use”.
When you are testing twisted pair cables, the test tool
checks for a Cable ID Unit at the other end of the cable
and displays one of the following when a pass condition
exists:
Good cable, Cable ID#8
detected.
abm07f.eps
Good cable, No cable ID
detected.
abm08f.eps
Note
The test tool may not sense the Cable ID Unit
under some open and short conditions. The test
tool will alternately display a ? and a number
when the Cable ID is detected but its number
can not be dertmined with certainty.
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