Install the M-300 Appliance in a 19” Equipment Rack

1. Attach the inner rail sets (two each) to each side of the appliance by aligning the square holes on each rail with the rail hooks on the appliance and then sliding the rails toward the front of the appliance to engage the hooks. Secure the back inner-rails using two M4 screws for each rail and secure the front inner-rails using one M4 screw for each rail.
   The inner-rails also use pressure-lock clips that lock the rails to the appliance. Remove the two M4 screws and pull the metal tab on the clips to remove the rail from the appliance.

2. Install one outer rack-mount rail assembly (two rails each) on each side of the equipment rack. Push the rail buttons in on the ends of the rails, insert the studs in to the square rack holes, and then release the buttons to secure the rails to the rack. The following image shows the right side of the rack if you are facing the front of the rack.
   To remove the outer rails from the rack, you must pull the release clips located at the front and back end of each rail assembly to release the rails from the rack.

3. Install the firewall in to the equipment rack by sliding the inner-rails in to the outer rack-mount rails until the appliance stops (about halfway in to the rack). Push the inner-rail release clips on each side of the two rails (push the left clip up and the right clip down) to release the appliance and then continue to slide the appliance in to the rack until the front of the appliance is flush with the front of the rack. The inner-rail release clips are shown in step 1.

4. Secure the front of the appliance to the rack by turning the front thumb screws on each rail clockwise until tight. Secure the back rail to the rack using one M5 screw (with washer) for each rail.