EXFO FOT-930 Multifunction Loss Tester User Manual
Page 45
Measuring Power or Loss
Multifunction Loss Tester
37
Measuring Power or Loss
6. Using bulkhead adapters or the system patch panels, connect a fiber
under test to reference patchcords attached to the light source and
power meter.
7. Activate the source at the desired wavelength.
8. Match the power meter wavelength with the source wavelength as
follows:
Press Wavelength (F1/F2 key) to switch between
of your power meter (see Defining the List of Favorite
OR
If the source emits an auto-wavelength signal and
is
enabled (see Automatically Detecting Wavelength on page 39), the
power meter automatically matches the source wavelength.
If the unit detects a modulated signal, it beeps and the signal frequency
is indicated in the status bar, next to a yellow LED: 2k indicates a 2-kHz
signal, 1k a 1-kHz signal, and 270 a 270-Hz signal.
9. Press W/dBm/dB (F1/F2 key) to select the desired power (W or dBm)
or loss (dB) unit.
Light
source
Power
meter
Adapter
Reference
patchcord
Fiber
under test
Reference
patchcord
Bulkhead
adapter
Bulkhead
adapter