Data Domain DD6300 System Installation and Storage Expansion Guide

Install the rails

This procedures describes how to install the mounting rails.

1. If EIA rail mounting holes of 7.1 MM diameter round, or M5, 12-24, 10-32 threaded, are being used, install the filler using the pin as shown. If not, proceed to the next step.
   
   Once the filler is installed to the rail, the installation can continue as follows.
2. At the front of the cabinet, insert the two adaptors on the front of the rail into the correct holes in the 2U space.
   
3. Insert one screw into the lower hole to hold the front of the rails in place. Do not fully tighten the screw at this time.
   NOTE An 18-inch screwdriver (minimum) is required to install the screw into the rear of the rails.
4. At the rear of the cabinet, align and insert the two adaptors on the rear of the rail with the mounting holes in the NEMA channel. Make sure the rail is level.
   
5. Use an 18-inch screwdriver (minimum) to secure the rear of the rail to the NEMA channel using one screw.
6. Tighten the front screw.
7. Repeat for the other rail.