EXFO FTB-1 - Manual (Page 31)

Getting Started with Your Unit
FTB-1 21
Inserting and Removing Test Modules
To remove a module from the FTB-1:
1. Turn off your unit (Shutdown).
2. Position the unit so that its front panel rests on a flat surface such as a
table.
3. Using a flat screwdriver, turn the screws (4) counterclockwise until
they are loose. Since they are captive screws, you cannot remove them
completely.
Turn screws
counterclockwise
Back panel