** Available in Q3 2010 226.2 Environmental SpecificationsTable 13. Environmental SpecificationsTemperatureOperating 10° to 35°C (50° to 95°F) with a maximum temperature gradationof 10°C per hourNote: For altitudes above 2950 feet, the maximum operatingtemperature is de-rated 1°F/550 ft.Storage -40° to 65°C (-40° to 149°F) with a maximum temperaturegradation of 20°C per hourRelative HumidityOperating 20% to 80% (non-condensing) with a maximum humiditygradation of 10% per hourStorage 5% to 95% (non-condensing) with a maximum humidity gradationof 10% per hourMaximum VibrationOperating 0.25 G at 3 – 200 Hz for 15 minStorage 0.5 at 3 – 200 Hz for 15 minMaximum ShockOperating One shock pulse in the positive z axis (one pulse on each side ofthe system) of 31 G for 2.6 ms in the operational orientationStorage Six consecutively executed shock pulses in the positive andnegative x, y, and z axes (one pulse on each side of the system)of 71 G for up to 2 msAltitudeOperating -16 to 3048 m (-50 to 10,000 ft)Note: For altitudes above 2950 feet, the maximum operatingtemperature is de-rated 1°F/550 ft.Storage -16 to 10,600 m (-50 to 35,000 ft)Airborne Contaminant LevelClass G2 or lower as defined by ISA-S71.04-19857 Rack Information7.1 OverviewThe chassis dimensions shall adhere to CEA‐310‐E and Server System Infrastructure (SSI)specifications. Dimensional constraints of the chassis require that the chassis be 2U in height, andcomply in width to fit a Dell™ rack. Drives are accessible from the front, while power supply/fanmodules, backplane, and EMMs are accessible from the rear.7.2 Rack Rail KitProvisions for a rack rail kit are incorporated into the chassis design. The chassis, front panel, and rackkit, when fully assembled together and placed in a rack, must be in compliance with DELL™ RackDesign Guidelines Version 1.1. All critical envelope dimensions referenced in this document assumethe inclusion of the rack kit and bezel. Both VersaRail and RapidRail kits are available.