EXFO iOLM - Manual (Page 47)

Setting User Preferences
intelligent Optical Link Mapper 41
Customizing the Optical Power Meter
2. Select the OPM tab.
3. Select the power meter mode. The choices are FTTx/PON and CWDM.
Note: The wavelengths available in the OPM tab are those used for the selected
power meter mode.
4. Tap Apply to save the changes.
5. Tap OK to save the changes and close the window, or tap Cancel to
exit without saving.
Tap Revert to Factory Settings to remove all the changes and apply the
default values.