F i g u r e 1 - 2 .
1 U (44 mm or 1.75 inches)
Mark the front rails again, 44 mm (1.75 inches) above the original mark you made (or,
2
for a rack that meets EIA-310 standards, you can count up three holes and place a
mark just above the top hole).
This mark or piece of tape indicates where the tray's upper edge will be located on the
vertical rails. See Figure 1-3.
1-6
I n s t a l l a t i o n G u i d e
O n e R a c k U n i t
12.7 mm (0.5 inch)
15.9 mm (0.625 inch)
15.9 mm (0.625 inch)
12.7 mm (0.5 inch)