EXFO FTB-635 Wideband Copper and DSL Test Module - Manual (Page 293)

Impulse Tests
Copper and xDSL Tests 285
Impulse Duration
The page opens to the histogram indicating how many disruptions have
been detected for the Impulse Duration interval. The following
parameters are displayed:

Edit Parameters button opens a new page that allows you to set the
test parameters.

Edit Thresholds button opens a new page that allows you to set the
Impulse Duration and Counter thresholds.

Save Test button opens a new page that allows you to save a snapshot
of test results into a result file. Refer to Save Test on page 74 for more
information.