Two-Post Flush-Mount Installation - Dell S4248FB-ON Installation Manual

Figure 10. 1U tool-less nonthreaded square hole installation
2 Align and seat the front flange pegs in the holes on the front side of the vertical post.
NOTE: Be sure that the rails click into place and are secure.
3 Repeat this procedure for the second rail.
To remove each rail, pull on the latch release on each flange ear and unseat each rail.

Two-post flush-mount installation

CAUTION: Your switch is not NEBS Earthquake Z4-compliant if you this installation method.
NOTE: For more installation instructions, see the installation labels attached to the rail assembly.
1 For this installation, remove the tool-less latch castings from the front side of each ReadyRails assembly, see item 1.
Use a Torx screwdriver to remove the two screws from each front latch on the switch side of the rail. Remove the tool-less latch
casting. Retain the castings for future rack requirements. Do not remove the back latch castings.
22 S4200-ON Series installation