EXFO iOLM - Manual (Page 102)

Using the Inline Power Meter (Optional on Some Models)
96 iOLM
Understanding the Inline Power Meter
A visual representation of the power value for each channel is displayed
and updated each time a new power value is measured. This visual
representation of power value gives an idea of the power on a scale and
power level versus pass/fail thresholds.
The identifiers defined in the Identification tab under User Preferences
are also displayed on this page.
Minimum and maximum
power threshold values for
first wavelength Minimum and maximum
power threshold values for
second wavelength
Two
wavelengths
selected