H3C Technologies H3C S7500E Series Switches - Manual (Page 9)

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a. Make sure the top flange of a slide rail aligns with the middle of the narrower metal area
between holes in a rack post, as shown in Figure 4 .
b. Each rack post requires six screws to attach the slide rail. Mark only the uppermost and
lowermost holes.
c. Mark the square holes at the same height on the other three rack posts.
Figure 4 Determining the cage nut installation holes by using a slide rail
(1) Middle of the narrower metal area between holes
3. Install six cage nuts in the square holes in each rack post, as shown in Figure 5 .
Figure 5 Installing a cage nut
4. Align the installation holes on the front end of a slide rail with the cage nuts on a front rack post,
and use six screws to attach the slide rail to the front rack post.
Figure 6 uses the right slide rail as
an example.