NOTE:
To ensure that the protective earthing terminal is accessible through the opening in the rear
mounting bracket:
•
Ensure that the rack is 27.5-in. (70-cm) through 30.5-in. (77.5-cm) deep if you are mounting the
switch flush with the rack front on four posts of a rack.
•
Ensure that the rack is 29.5-in. (75-cm) through 32.5-in. (82.5-cm) deep if you are mounting the
switch 2 in. recessed from the rack front on four posts of a rack.
Before mounting a QFX5120 switch on four posts of a rack:
•
Place the rack in its permanent location, allowing adequate clearance for airflow and maintenance, and
secure the rack to the building structure.
•
Read “General Safety Guidelines and Warnings” on page 161, with particular attention to “Chassis and
Component Lifting Guidelines” on page 167.
•
Remove the switch from the shipping carton.
Before you begin mounting a QFX5120 switch, ensure that you have the following parts and tools available:
•
Phillips (+) screwdriver, number 2 (not provided)
•
Screws to secure the chassis and the rear mounting brackets to the rack (not provided)
•
6 flat-head 4-40 Phillips mounting screws (provided with the four-post rack-mounting kit)
•
12 flat-head 4x6-mm Phillips mounting screws (provided with the four-post rack-mounting kit)
•
One pair each of front mounting brackets for flush installation and front mounting brackets for 2-in.
recessed installation
•
One pair of side mounting rails (provided with the four-post rack-mounting kit)
•
One pair of rear mounting brackets (provided with the four-post rack-mounting kit)
NOTE: One person must be available to lift the switch while another person secures the switch to
the rack.
CAUTION: If you are mounting multiple units on a rack, mount the heaviest unit at the
bottom of the rack, and then mount the other units from the bottom of the rack to the
top in decreasing order of the weight of the units.
94
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