Triplett Fox 2 – PN: 3382 - Manual (Page 38)

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cable with the HOUND or HOUND 2 to locate or trace it. To
increase the tracer tone strength, connect either clip of the
FOX 2 to a ground while the target cable is connected to the
RJ-45 jack. However, when using this grounded technique,
the tracer tone strength may be so dramatically increased
that the tone will crosstalk onto adjacent cables, making the
path of the target cable difficult to differentiate from the path
of the other LAN cables. This is especially true if the LAN
cables are bundled together, which promotes crosstalk.
To identify the LAN cable, pair 4/5 must be momentarily
shorted to active TrueTrace. These are the center 2 pins on
an RJ-45 connector. These can be shorted out with a small
wire..... or a special user constructed plug/jack made for this
purpose.
Specialized LAN testers, like the Triplett PairMaster or
WireMaster XR-5 and XR-2 can easily identify LAN cable
faults. These faults are usually right at the RJ-45 connec-
tors. If an open fault is identified in the LAN cable, make
sure that the open is in one of the active pairs. In a typical
568A/B CAT 5 LAN, only pairs 3/6 and 4/5 are used. Pairs 1/
2 and 7/8 are not used. Opens in these pairs will not affect
the performance of the LAN.
To find an open fault in a LAN cable, first check the RJ-45
connectors on the ends of the cable. If these are OK, some
special test cables, or a Break Out Box (BOB) is necessary to
find the open along the path of the cable. First, trace the
path of the cable using the pre-described methods. Then
insert a BOB, our use a special cable to connect the clips of