12 C1619M-I (11/07)
5. If installing unit into a square-hole rack: Insert 10 cage nuts into the square-hole rack as shown in Figure7.
Figure 7. Inserting Cage Nuts
6. Attach one support rail assembly to the equipment rack in the desired location (refer to Figure 8).
NOTE: The support rail assemblies are identical and may be used on either the right or left side of the rack.
a. Position the ear of the front-mount rail against the front of the equipment rack. Align the top and bottom holes in the ear of the rail
with the threaded holes (or cage nuts) in the rack.
b. Using two 10-32 x 0.5-inch Phillips flat head screws, attach the ear of the rail to the front of the rack. Insert the screws from the
outside of the rack, pointing rearward.
c. Adjust the rails to the correct depth of the equipment rack by sliding the rear-mount rail to the back of the equipment rack.
d. Position the ear of the rear-mount rail against the rear exterior of the equipment rack. Align the top and bottom holes in the ear of the
rail section with the threaded holes (or cage nuts) in the equipment rack.
e. Using two 10-32 x 0.75-inch Phillips pan head screws, attach the ear of the rail to the rear of the rack. Insert the screws from the
outside of the rack, pointing forward.
CAGE NUT