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To install cage nuts to the rack:
Align the mounting bracket with the left rack post, making sure its bottom edge and the slide rail
are level. Mark the positions of the cage nuts on the rack post according to the mounting holes on
the mounting bracket. (Each mounting hole on the mounting bracket corresponds to one cage nut.)
The mounting brackets are fixed on the chassis of the 12508E and 12518E before delivery from the
factory. To determine the installation holes for cage nuts, you can remove a mounting bracket from
the chassis and mark the nut holes, or use a pattern tool to record the installation holes of the
mounting brackets and mark the nut holes accordingly.
Install cage nuts to the rack posts using the method described in relevant steps in
Figure 18 Installing the cage nuts

Mounting the switch in the rack

Before you mount the switch in the rack, make sure you have installed slide rails or a rack shelf on the rack
for supporting the switch.
To maximize the stability of the rack, mount the heaviest switch at the bottom of the rack when you install
multiple switches on the rack.
To mount the switch in the rack:
Cooperate with several people to place the switch on the slide rails or rack shelf and slide the
switch into the rack until the mounting brackets on the switch touch the front rack posts.
Attach the mounting brackets to the rack posts with mounting screws. See
"Installing slide


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