EXFO FTB-800 Series for FTB-1 - Manual (Page 504)

Power Failure Recovery
494 FTB-700G/800 Series
When Using the Test Timer
When Using the Test Timer
Refer to Timer on page 234 for more information on test timer.
The test that was running will be re-created and started after a power
failure if all the following conditions are met:

The test was running.

The duration has not expired during the power failure.