Note
The rack post must have holes on both the front and rear flanges to properly secure the rack mount rail in either a 3-inch or 7.25-inch flush two-post rack configuration. The rack post must have holes on the front flange to secure the rack mount rail in a mid-mount two-post rack configuration.The mid-bracket is used to secure the rack mount rail to the rear flange of the rack post in a flush mount configuration or to the front flange of the rack post in a mid-mount configuration.
You can position the mid-bracket on to the rail in the following configurations:
The two-post rack mount rail can be installed in both a flush mount or mid-mount configuration. In a flush mount configuration, the rack mount rail is secured to both the front and rear flange of either a 3-inch or 7.25-inch rack post.