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FX80 / FX81 PON Optical Power Meters User Manual
Page
30
of
50
Starting VFL mode
3. Press the |
F1| (ON)
button to begin the test.
Starting VFL testing, continuous light
4. To modulate the light (1 or 2 Hz), press |
F2| (1Hz)
or
|F3| (2Hz)
, respectively. The
pressed button then changes to continuous wave mode
(CW).