Dell PowerConnect J-EX4500 Hardware Manual page 98

Dell PowerConnect J-Series J-EX4500 Ethernet Switch Hardware Guide
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NOTE: If you are mounting the switch on four posts, ensure that the rack is
21.5 in. through 31.5 in. deep if you will mount the switch flush with the rack
front and that the rack is 23.5 in. through 32.5 in. deep if you will mount the
switch 2 in. recessed from the rack front, thus ensuring that the protective
earthing terminal is accessible through the opening in the rear bracket.
Before mounting the switch on four posts in a rack:
Verify that the site meets the requirements described in "Site Preparation Checklist
for J-EX4500 Switches" on page 53.
Place the rack in its permanent location, allowing adequate clearance for airflow and
maintenance, and secure it to the building structure.
Read "General Safety Guidelines and Warnings for J-EX Series Switches" on page 159,
with particular attention to "Chassis Lifting Guidelines for J-EX4500 Switches" on
page 172.
Remove the switch from the shipping carton (see "Unpacking a J-EX4500 Switch" on
page 76).
Have two persons available to mount the switch. One person will support the switch
in a level position, and the second person will secure the switch to the rack.
Ensure that you have the following parts and tools available:
Phillips (+) screwdriver, number 2
Flat-blade screwdriver if you are installing the switch in a rack with square, nonthreaded
holes
12 flat-head M4x6-mm Phillips mounting screws (provided with the four-post
rack-mount kit)
One pair of front brackets
One pair of rear brackets
8 screws—and 8 cage nuts and washers if your rack requires them—to secure the
chassis and the rear brackets to the rack (provided)
CAUTION: If you are mounting multiple units on a rack, mount the heaviest
unit at the bottom of the rack and mount the other units from the bottom of
the rack to the top in decreasing order of the weight of the units.
To mount the switch on four posts in a rack:
If your rack has unthreaded round or square holes:
1.
Determine the location on the rack where you want to mount the switch, and install
a.
2 cage nuts in the appropriate holes in each rack post, front and rear.