EXFO FTB-500 - Manual (Page 123)

Working with Your Unit
FTB-500 115
Taking Screen Captures
Taking Screen Captures
You can take captures of what is displayed on your screen, directly from
your unit. This could be useful for troubleshooting when you need another
person to have a look at a specific configuration or problem. You could also
use this tool for training purposes.
If you want to capture images of the fibers that you examine with the fiber
inspection probe, you can use the capture feature of the probe instead.

The images are saved in .png format. They are sent to the following
folder (in the account of the user currently logged on the unit):
This PC\Pictures\Screenshots

The application generates file names as follows:
Screenshot ().png
where
Sequential_number corresponds to the number that is added each
time you take a screen capture.
Note: The name of the folders and of the files described above will vary according
to the language that is currently selected in Windows.