EXFO FTB-8500 Series for FTB-200 - Manual (Page 411)

Ethernet and Fibre Channel Application 397
23 Suspend and Resume
Suspend and Resume allow respectively the FTB-200 and its running
applications to stop (Suspend) and to be quickly re-initialized (Resume)
when the unit is turned back on.
Suspend Mode
To enter suspend mode, hold down the On/Off button a few seconds until
the unit beeps once. In Suspend Mode, the Ethernet and Fibre Channel
Application module is directly turned off and its configuration and injection
information are kept in static RAM. The Suspend Mode remains active as
long as battery power or AC power is available. If the battery is drained the
information is lost and the Resume operation in no more possible.
The following conditions prevent the activation of the Suspend Mode:

A firmware download is in-progress

Resume operation is in-progress.
Note: The test will be stopped when entering the suspend mode meaning that the
test logger content will be lost.