Dell Networking C9010 Getting Started Manual page 13

Figure 7. Aligning Rack-Mount Holes with 4-Post Rack Holes
5. Lift and slide the chassis so that the holes on the chassis flanges touch the holes in the rack posts.
Tighten the four thumb screws on the flanges into the cage nuts to secure the chassis on the front
posts (Figure 8).
Installing the Hardware
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