To remove the extension (callout 1) from the rack mount rail assembly, unscrew two screws from each of two assembly clips (callout 4) as shown in Removing the Extension from the Rack Mount Rail Assembly.
Retain the four screws (callout 3) from both mount rail assemblies for securing the mid-bracket to the rail (callout 2). Both the extensions and the assembly clips are not used for a two-post rack installation.
1 = Rack mount rail assembly extension | 3 = Rail assembly clip screws (4 per assembly) |
2 = Rack mount rail | 4 = Rail assembly clips (2 per assembly) |