H3C Technologies H3C S5120 Series Switches - Manual (Page 32)

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Step2 Locate the positions for installing cage nuts on the rack post, and use a marker to mark the positions.
Step3 Install cage nuts at the marked positions.
Step4 Attach the mounting brackets to the switch. For more information, see “ Attaching the mounting brackets
to a switch. ”
Step5 Use one person to support the bottom of the switch and gently place the switch on the rack to a proper
location.
Step6 Use another person to fix the mounting brackets with screws (anti-rust screws with cage nuts prepared by
yourself) to the square holes of the rack to install the switch to the rack horizontally, as shown in Figure
29 or Figure 30 .
NOTE:
The method for installing the S5120-SI Switch Series into a rack is similar. For how to install the switch to
a rack by using mounting brackets, see
Figure 29 or Figure 30 according to the model and mounting
position of the mounting brackets as described in Table 14 .
Figure 29 Mount the S5120-20P-SI to a rack
前（两孔）
(1)
(2)
(1) Front panel (2) Rear panel