Chapter 2 Installing Trays 35
■ All 19-inch wide, 4-post EIA-compatible racks and cabinets with un-threaded
cabinet rails (square hole racks).
To attach the universal rail kit to a cabinet with un-threaded cabinet rails, follow
these steps first for the left rail and then for the right rail:
1. Hook a cabinet rail adapter plate over the front of the cabinet rail. (
FIGURE 2-6)
FIGURE 2-6 Inserting the Cabinet Rail Adapter Plate on the Cabinet Rail
Position the adapter plate over of the 2RU slot in which the tray is to be mounted.
The hook on the top of the adapter plate hooks into the top hole of the upper RU.
The flat flange on the bottom of the adapter plate fits into the bottom hole of the
lower RU (
FIGURE 2-7).