IBM Medium J11 Hardware Installation And Maintenance Manual page 92

Table 26. Ambient temperature and humidity (continued)
Specification
Non-operating
Specification
Airflow
Altitude, operating
Altitude, non-operating
Shock, operating
Shock, non-operating
Vibration, operating
Vibration, non-operating
Vibration, relocation
Acoustics
Orientation and mounting:
• Rack rails
• Rack characteristics
Power supply unit specifications
Table 27. Power cooling module specifications
Specification
Dimensions
Maximum output power
Voltage range
Frequency
Voltage range selection
72 IBM Cloud Object Storage System: Medium/Large J11/J12 Disk Enclosure Hardware Installation and
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Temperature range
-40º C to +70º C (-40º F to +158º
F) (Max rate of change: 20º C)
Measurement/description
System must be operated with low pressure rear
exhaust installation.
Back pressure created by rack doors and obstacles
not to exceed 5 Pa (0.5 mm H
-100 to 3,048 meters (0 to 10,000 feet). Maximum
operating temperature is de-rated by 1º C for each
300 m above 900 m (2952.76 feet)
-100 to 12,192 m (-328 to 40,000 feet)
3.0 g, 11 ms (per axis)
20.0 g, 7 ms, 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)
0.18 G
0.54 G
ISTA3H air ride for 60 min
4U enclosures: Sound power operating £ 8.5 Bels
LW @23ºC
Ad
1.2 m rack mount (4 EIA units)
To fit 1.2 m depth racks compliant with the SSI
server rack specification
Back pressure not exceeding 5 Pa (~0.5 mm
H 0)
2
Measurement/description
38.1 mm high x 169.9 mm wide x 211.1 mm 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)
2000 W
200–240 VAC rated
50–60 Hz
Auto-ranging: 90–264 VAC, 47–63 Hz
Relative humidity
-12º C DP/5 to 100% (Max)
(Non-condensing)
2
5Hz to 500 Hz, 30 min per axis
rms
6Hz to 200 Hz (ISTA 3E)
rms
O)