958-000289-003, March 2005)

Director 2/64 installation guide 45

NOTE: Ensure the slots in the sides of the rail tray slide over the posts on the rear rail tray brackets,

and the posts on the rail tray’s front mounting flanges are inserted into the center holes of U1.

Figure 20 Inserting the rail tray in the rack

7. Secure the rail tray:

a. Insert an M5 Torx screw through the top holes in both of the rail tray mounting flanges. The

screws pass through the holes in the rack uprights and thread into the Tinnerman nuts

installed on the rack uprights in step 5.

b. Tighten both M5 Torx screws.

Prepare the front and rear rack columns

Use the following procedure to prepare the rack for installing a switch:

1. Prepare the front rack columns (Figure 21):

a. Standing at the front of the rack, count up from the top of the rail tray (1) to the 13th, 19th,

and 23rd holes on the rack's front face.

b. Slide a sheet metal nut (2) on each of the located holes.