Table 15. Ambient temperature and humidity (continued)
Specication Temperature range Relative humidity
Non-operating -40ºC to +70ºC (-40ºF to +158ºF)
(Max rate of change: 20ºC)
-12ºC DP/5 to 100% (Max) (Non-
condensing)
Specication Measurement/description
Airflow System must be operated with low pressure rear
exhaust installation.
Back pressure created by rack doors and obstacles
not toexceed5Pa (0.5 mmH2O)
Altitude, operating -100 to 3,048 meters (0 to 10,000 feet). Maximum
operating temperature is de-rated by 1ºC for each
300 m above 900 m (2952.76 feet)
Altitude, non-operating -100 to 12,192 m (-328 to 40,000 feet)
Shock, operating 3.0 g,11 ms (per axis)
Shock, non-operating 20.0 g, 7ms, 10 shock pulses (2 shocks per axis X,
Y in positive and negative direction, and 2 shocks
in positive Z axis) OR ISTA 3H (mounted in a rack,
horizontal impact on all sides, 4-in drop tests)
Vibration, operating 0.18 G
rms
5 Hz to 500 Hz, 30 min per axis
Vibration, non-operating 0.54 G
rms
6Hz to 200 Hz (ISTA 3E)
Vibration, relocation ISTA3H air ride for 60 min
Acoustics 4U enclosures: Sound power operating <= 8.5 Bels
LW
Ad
@ 23ºC
Orientation and mounting: 1.2 m rack mount (4 EIA units)
Rack rails To t 1.2m depth racks compliant with the SSI
server rack specication
Rack characteristics Back pressure not exceeding 5Pa (~0.5 mm H
2
0)
Power supply unit (PSU) module
Specications for the power supply unit are provided.
Table 16. Power cooling module
specications
Specication Measurement/description
Dimensions (size) 38.1 mm high x 169.9 mm wide x 211.1mm long:
• X-axis length: 169.9 mm (6.69 in)
• Y-axis length: 38.1 mm (1.5 in)
• Z-axis length: 211.1 mm (8.3 in)
Maximum Watts 1568W
Maximum VA 1650 VA
Voltage range 200–240 VAC rated
Appendix A. Technical specications 85
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