Mitel 3300 Technician's Handbook page 129

To Install the 3300 ICP Controller Cover
1. Turn the 3300 Controller until the back panel is facing
forward.
2. Lift the lock for the AC power cord and place the shell
at an angle to hook onto the back of the unit.
3. Straighten and slide the cover forward as far as it will
go.
4. Secure the shell by inserting and snugly securing the
two screws on the back panel.
5. Rotate the 3300 Controller until the front panel is
facing forward.
6. Turn the 3300 Controller gently upside down.
7. Secure the screws on the bottom front of the unit.
8. Turn the 3300 Controller right side up.
9. Clip on the front face-plate taking care not to damage
the protruding FIM connectors.
10. Reinstall the 3300 Controller into the rack (if
applicable).
11. Reconnect all cables.
12. Power on the unit.
Upgrade and FRUs
111