Two-Post Rack Installation 27Two-Post Rack InstallationThe two-post rack kit is used to install a system in a two-post, open-frame relay rack, such as thosefound in telecommunications equipment facilities. Both 7.62-cm or 15.24-cm (3-inch and 6-inch) widetwo-post racks with universal hole spacing or wide hole spacing are accommodated. You can install thiskit in a center-mount or a flush-mount configuration.You must properly secure the two-post relay rack to the floor, the ceiling, or upper wall, and whereapplicable, to adjacent racks, using floor and wall fasteners and bracing specified or approved by therack manufacturer or by industry standards. See the two-post rack manufacturer's documentation forwarnings before attempting this installation.CAUTION: Do not attempt to install the system into a two-post, open-frame relay rack that has not beensecurely anchored in place. Damage to the system and personal injury to yourself and to others may result.Safety InstructionsUse the following safety guidelines to ensure your own personal safety and to help protect your systemand working environment from potential damage. For complete safety information, see the ProductInformation Guide.SAFETY: Rack Mounting of SystemsObserve the following precautions for rack stability and safety. Also refer to the rack installationdocumentation accompanying the system and the rack for specific caution statements andprocedures.Systems are considered to be components in a rack. Thus, "component" refers to any system as wellas to various peripherals or supporting hardware.CAUTION: After installing system/components in a rack, never pull more than one component out of the rack on its slideassemblies at one time. The weight of more than one extended component could cause the rack to tip over and may resultin serious injury.NOTE: Your system is safety-certified as a free-standing unit and as a component for use in a Dell rackcabinet using the customer rack kit. The installation of your system and rack kit in any other rack cabinet hasnot been approved by any safety agencies. It is your responsibility to ensure that the final combination ofsystem and rack complies with all applicable safety standards and local electric code requirements. Delldisclaims all liability and warranties in connection with such combinations.