EXFO FTB-610 Wideband Copper Test Module - Manual (Page 172)

Multimeter Tests
164 FTB-610
Balance Test
Passive
The Passive function computes the passive balance as the difference
between Power Influence and VF Noise, displaying and updating results in
real time, until you stop the test. The last valid results then remain
displayed. The page also displays the Passive pass/fail status, Power
Influence, VF Noise, and Balance values.
To access Passive page:
1. From the Copper main menu Test Groups, select Signal test
.
2. From the Tests menu, select Balance test to start the test.
3. Select the Passive tab.
The current group and the current test which is being measured is
displayed in the status bar, for example Signal\Balance.