Dell PowerVault 720N Installation And Troubleshooting Manual page 34

2-4 Dell PowerVault 720N, 740N, and 760N Installation and Troubleshooting Guide
A rack mounting kit, consisting of:
— Two rack adapter rails and mounting hardware
— A 1/2-U filler panel and mounting hardware (including cage nuts and cage nut
installation tool)
— A cable management clip with mounting hardware
Observe the following requirements, cautions, and warnings when you install the filer
in a rack (the filer ships with front installation brackets installed).
Ensure that the rack mounting holes meet ANSI/EIA-310-D-92 specifications for
19-inch (483-mm.) wide equipment.
Ensure that equipment installed above the filer is no closer than 0.875-inch
(22.2-mm) from the top of the filer's ventilation holes.
The left- and right-hand rack adapter rails have six threaded holes on the front and four
on the back. The multiple holes allow users to install the rack adapter rails in either
whole-unit or half-unit rack mount positions. The six threaded holes are labeled 1
through 6 on the front and 7 through 10 on the back, with stamped numbers.
To install the rack adapter rails in a standard 19-inch (483-mm.) equipment rack, per-
form the following steps:
1. Locate marks on the rack's left and right front vertical rails. These marks are
1-U spacing marks that appear every 1.75 inches of vertical rack height (see
Figure 2-1).