Fluke Versiv Series Technical Reference Handbook page 224

Versiv Series Cabling Certification Product Family
Technical Reference Handbook
Table 8. Causes of Twisted Pair Test Failures (continued)
Split pair, reversed pair, or crossed wires
 Wires connected to wrong pins at connector or punchdown block
The HDTDX analyzer can help you locate split pairs.
See page 194.
Crossed pairs
 Wires connected to wrong pins at connector or punchdown block
 Mix of T568A and T568B wiring standards (1,2 and 3,6 crossed)
 Crossover cables used where not needed (1,2 and 3,6 crossed)
To do the wire map test continuously while you look
for a fault, tap SCAN ON on the WIRE MAP FAIL
screen, or tap TOOLS > Single Tests >
A test passes, but the plot shows that measurements exceed the limit
A dB rule possibly applies. See "About dB Rules" on page 150.
Resistance test gives a FAIL, FAIL*, or PASS* result
 Link is too long (may need to remove coiled service loops)
 Bad connection due to oxidized or loose contacts
 Wire gauge is too thin
 Wires in a pair have too much difference in the number of twists
(resistance is unbalanced)
 Wrong type of patch cord used
The HDTDR analyzer can help you locate the cause of
a resistance failure. See page 204.
To do the resistance test continuously while you look
for a fault, tap TOOLS > Single Tests > Resistance.
188
Note
Note
Wire Map
Notes
.