Mitel 3300 Technician's Handbook page 174

3300 ICP Technician's Handbook
Figure 33: Removing the Power Cable
6. Remove the Stratum 3 clock module and keep the screws.
7. Unfasten the MXe carrier chassis retaining screw (see Figure 34).
Figure 34: Carrier Chassis Retaining Screw
8. Facing the front of the controller, wiggle the chassis back towards
yourself until the chassis is free of the controller cabinet.
164