EXFO OTDR 2 - Manual (Page 129)

Analyzing Traces and Events
OTDR 121
Viewing and Modifying Current Measurement Settings
To view or modify measurement settings:
1. From the Main Menu, tap Test Configuration.
2. From the Apply to list, select Current acquisition.
3. From the Test Configuration window, go to the Link Definition tab.
4. Under Fiber Characteristics, from the Wavelength list, select the
desired wavelength.