Two-Post Rack Mount Installation

The rack mount option kit supports two configurations for a two-post rack installation:

• A 3-inch or 7.25-inch post flush mount configuration
• A mid-mount configuration

The option of recessing the chassis up to 3.8 cm (1.5 in.) is also supported for each configuration (see Installing the Adapter Plates). Both airflow directions are supported.

Two Post Rack Supported Configurations displays the two-post rack flush mount and mid-mount configurations for supported airflow directions for a 3-inch post installation. The same configurations apply to a 7.25-inch post installation. The recessed chassis configurations are not displayed.

1 = Flush mount, I/O port side to power supply side airflow	5 = Cool air intake side
2 = Flush mount, power supply side to I/O port side airflow	6 = Hot air exhaust side
3 = Mid-mount, I/O port side to power supply side airflow	7 = Airflow direction
4 = Mid-mount, power supply to I/O port side airflow

This section details the installation of the optional rack mount kit for a two-post rack, including:

• Preparing the rack mount rail assembly for a two-post rack installation, by removing the extension from the rail assembly and adding a mid-bracket to the rail
• Securing the rack mount rail and mid-bracket assembly to the rack post

The rack mount kit rail assembly is pre-assembled for a four-post rack installation. Before installing the rail to a two-post rack, perform the following tasks:

• Remove the extension from each rack mount kit rail with extension assembly as described in Removing the Extension from the Rack Mount Rail Assembly.
• Install a mid-bracket in either a flush or mid-mount configuration to each rail as described in Attaching the Mid-Bracket to the Rail.