The pair under test is displayed at the top of the screen. The reference pair is displayed at the bottom of the screen. Any changes in the control parameters affect both traces. It is not possible to control each trace independently.
Dual Trace is used to compare two pairs at the same time (usually a faulted and a good pair).
Differential and Crosstalk
Use the Differential mode to display only the differences between two pairs (usually a ‘good’ pair and a pair under test).
Use the Crosstalk mode to display the amplitude and location of signals that “cross” from one pair to the other, as could be caused by a split.
For both Differential and Crosstalk, connect the red and black test leads to the pair under test. Connect the blue and yellow test leads to the reference pair.
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