EXFO FG-750 - Manual (Page 178)

Operating Your RTU in OTDR Measuring Mode
164 FG-750
Managing Threshold Sets
To modify threshold sets:
1. From the main menu, select Configuration > Threshold Sets.
2. From the tree view, select the threshold set you want to modify.
3. Click Edit.
4. Modify the parameters according to your needs.
5. Click Apply to update changes or Cancel to discard them.