Installing Rack Enclosures; Adjustable Mounting Posts; Dell Readyrails And Readyrails Ii; Figure 14. Adjustable Vertical Mounting Posts - Dell PowerEdge 2420 Technical Manual

5 Installing rack enclosures

Dell rack enclosures are compliant to EIA/ECA- 310- E and IEC 60297- 3- 100 design specifications.
Dell racks use the square- hole design and are compatible with Dell and third- party rack- mount
systems.

Adjustable mounting posts

Dell racks have four adjustable vertical mounting posts to enable flexibility of the location of IT
equipment within the rack; this allows devices to be positioned closer to the front door or to the
rear door. These posts are positioned at 29 inches apart, but can be adjusted from 24 to 30 inches.
The front air dam seal can be maintained within 2 inches of adjustment.

Figure 14. Adjustable vertical mounting posts

For information regarding proper installation and cabling techniques for the Dell racks and servers,
the Rack Installation and Cable Management Arm Installation Instructions and
please refer to
Cabling Best Practices
for the appropriate server model. Additionally, rack installation guides and
related documentation may be found at: http://support.dell.com/support/edocs/systems/racks/.

Dell ReadyRails and ReadyRails II

th th
The rails and cable management solutions for Dell 11 and 12 generation server platforms have
slam
been designed to enable the user- friendly latches (spring- loaded latches that engage
automatically) on the chassis, to expand third- party rack compatibility and to improve the overall
customer experience. The efficient design makes the release latch visible and accessible from the
front of the rack, with no special tools or empty U- spaces above or below required to disengage,
making the rails equally easy to remove.
th
Dell 11 generation server rails include the simple and intuitive ReadyRails™ rack/rail interface for
tool- less mounting in EIA- 310- E compliant square hole and unthreaded round- hole 4- post racks.
Dell's server, storage, and networking systems can be easily installed into the Dell PowerEdge 4820,
4220, and 2420 rack enclosures using the Dell ReadyRails static and sliding rail kits. Static rail kits
can be mounted, with a minor conversion using tools, into 4- post threaded hole racks and 2- post
19 PowerEdge Rack Enclosures Technical Guide