EXFO FG-750 - Manual (Page 175)

Operating Your RTU in OTDR Measuring Mode
Fiber Guardian 161
Creating the Reference Traces
To re-create the reference trace for a specific test setup
(acquisition and analysis settings unchanged):
1. From the main menu, select Configuration > Optical Routes.
2. From the tree view, select the route containing the test setup for which
you want to create a new reference.
3. From the tree view, select Test Setups.
4. From the tree view, select the test setup for which you want to create a
new reference.
5. Click Renew.