
Multifunction Loss Tester 19
5 Measuring Power or Loss
The FTB-3930 Multifunction Loss Tester is equipped with an optical power
meter to measure absolute power (in dBm or W) or insertion loss (in dB).
The power meter port is independent of the F
ASTEST port.
The following functions are available on your power meter:
FTB-3930
MULTITEST
Power meter port
Power meter port
Measured
power/loss
Modulation
detected
Reference
power
Value under
threshold
Add current value
to Te s t e d f i b er s
(to actually save
data, press Save
on function bar)
Perform offset
nulling
Set reference for
loss measurement
Display power
(W or dBm)
or loss (dB)
Change name of
next saved fiber
Switch between
favorite wavelengths
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