Dell R220 owner manual Usb

Connectors

Serial	9-pin, DTE, 16550-compatible
USB	Two 4-pin, USB 3.0-compliant
Video	15-pin VGA
Front
USB	Two 4-pin, USB 2.0-compliant
Video	15-pin VGA
Internal
USB	One 4-pin, USB 2.0-compliant

Environmental

NOTE: For additional information about environmental measurements for specific system configurations, see dell.com/environmental_datasheets.

Temperature
Maximum	10 °C/h (50 °F/h)
Temperature Gradient
(Operating and
Storage)
Storage Temperature	–40 °C to 65 °C (–40 °F to 149 °F)
Limits
Temperature (Continuous Operation)
Temperature Ranges	10 °C to 35 °C (50 °F to 95 °F) with no direct sunlight on the equipment.
(for altitude less than
950 m or 3117 ft)
Humidity Percentage	10% to 80% Relative Humidity with 29 °C (84.2 °F) maximum dew point.
Range
Relative Humidity
Storage	5% to 95% RH with 33 °C (91 °F) maximum dew point. Atmosphere must be
	non-condensing at all times.
Maximum Vibration
Operating	0.26 Grms at 5 Hz to 350 Hz for 15 minutes (all operation orientations).
Storage	1.88 Grms at 10 Hz to 500 Hz for 15 minutes (all six sides tested).
Maximum Shock

Operating

Storage

One shock pulse (one pulse each side of the system) of 31 G for 2.6 ms in the operational orientation.

Six consecutively executed shock pulses in the positive and negative x, y, and z axes (one pulse on each side of the system) of 71 G for up to 2 ms.

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