Environmental requirements 147
3-Weights may vary due to different power supplies, IOMs, and differing calibrations between scales.
4-Weights may vary due to actual number and type of disk drives (SAS or SSD) and air management modules installed.
Environmental requirements
Table 32 Ambient temperature and humidity
Specification
Temperature range
Relative humidity
Max. Wet Bulb
Operating
RBOD: 5ºC to 35ºC (41ºF to
95ºF)
EBOD: 5ºC to 40ºC (41ºF to
104ºF)
20% to 80% non-condensing
28ºC
Non-operating (shipping) -40ºC to +70ºC (-40ºF to
+158ºF)
5% to 100% non-precipitating
29ºC
Specification
Measurement/description
Airflow
System must be operated with low pressure rear exhaust installation.
Back pressure created by rack doors and obstacles not to exceed 5Pa (0.5 mm
H
2
O)
Altitude, operating
2U enclosures: 0 to 3,000 meters (0 to 10,000 feet)
Maximum operating temperature is de-rated by 5ºC above 2,133 meters (7,000
feet)
5U enclosures: -100 to 3,000 meters (-330 to 10,000 feet)
Maximum operating temperature is de-rated by 1ºC above 900 meters (3,000 feet)
Altitude, non-operating
-100 to 12,192 meters (-330 to 40,000 feet)
Shock, operating
5.0 g, 10 ms, ½ sine pulses, Y-axis
Shock, non-operating
2U enclosures: 30.0 g, 10 ms, ½ sine pulses
5U enclosures: 30.0 g, 10 ms, ½ sine pulses (Z-axis); 20.0 g, 10 ms, ½ sine pulses
(X- and Y-axes)
Vibration, operating
0.21 G
rms
5 Hz to 500 Hz random
Vibration, non-operating 1.04 G
rms
2 Hz to 200 Hz random
Vibration, relocation
0.3 G
rms
2 Hz to 200 Hz 0.4 decades per minute
Acoustics
Sound power
2U enclosures:
L
WAd
6.6 Bels (re 1 pW) @ 23ºC
5U enclosures:
L
WAd
8.0 Bels (re 1 pW) @ 23ºC
Orientation and
mounting:
19" rack mount (2 EIA units; 5 EIA units)
•
Rack rails
To fit 800 mm depth racks compliant with the SSI server rack specification
•
Rack characteristics
Back pressure not exceeding 5Pa (~0.5 mm H
2
0)