EXFO FG-750 - Manual (Page 46)

Getting Started with Your Fiber Guardian
32 FG-750
Inserting or Removing Optical Switch Cassettes (Certain Models Only)
9. Align the connector at the bottom of the cassette with the one inside
the unit, and push down. The cassette will snap into place.
10. Push the unit back into its casing and retighten the retaining screws.
11. If you are using a fiber management tray, put the protective window
back into place. For more information, see Working with the Fiber
(Patchcord) Management Tray on page 36.
To remove a cassette from the unit:
1. If you are using a fiber management tray, remove the protective
window. For more information, see Working with the Fiber (Patchcord)
Management Tray on page 36.
2. Turn off the unit and disconnect it completely from the power sources
(turn off both disconnect devices).
3. Put on an antistatic strap and connect it to the connector provided for
that purpose on the front panel of the unit.
4. If you have not done so already, disconnect any fiber from the front of
the cassette.