EXFO FTB-5230S Optical Spectrum Analyzer for FTB 200 v2 - Manual (Page 168)

Managing Files and Test Configurations
162 FTB-5230S/-OCA
Opening Other Test Mode Files in WDM Mode
Opening Other Test Mode Files in WDM Mode
Your application allows you to open different file types in WDM mode.
Note: This feature is not available in the OCA application.
While loading a spectral transmittance (.osast) file, the application will
re-analyze the newly imported data using the current WDM analysis setup.
While loading a legacy (.osw /.osm) file, the application will import only
the raw trace data and acquisition conditions (date, acquisition type,
averaging count and wavelength range). All results will be re-analyzed
using the current WDM analysis setup.
While loading an EDFA (.osaedfa) file, the application will re-analyze the
newly imported data using a temporary setup built from the retrieved
channel list, retrieved default channel settings and blanks filled using the
current WDM analysis setup.
While loading a spectral transmittance or EDFA file, the application imports
trace data as follows:

If an Input trace is present in the file, it is imported as the WDM
reference trace.

If an Output trace is present in the file, it is imported as the WDM active
trace.