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007-4857-002
A: Technical Specifications and Pinouts
Environmental Specifications
Table A-4 lists the environmental specifications of the 42U rack system. Table A-5 provides the
environmental information for the 20U system.
.
Table A-4
Environmental Specifications (42U Rack)
Feature
Specification
Temperature tolerance
(operating)
+5
°
C (41
°
F) to +35
°
C (95
°
F) (up to 1500 m / 5000 ft.)
+5
°
C (41
°
F) to +30
°
C (86
°
F) (1500 m to 3000 m /5000 ft. to 10,000 ft.)
Temperature tolerance
(non-operating)
-40
°
C (-40
°
F) to +60
°
C (140
°
F)
Relative humidity
10% to 90% operating (no condensation)
8% to 95% non-operating (no condensation)
Heat dissipation
Altix 450 (42U rack)
59.71 kBTU/hr maximum (based on 17.5 kW)
Cooling requirement
Ambient air cooling
Air flow: intake (front),
exhaust (rear)
Approximately 1400 CFM (normal operation)
Maximum altitude
10,000 ft. (3,049 m) operating
40,000 ft. (12,195 m) non-operating
Acoustical noise level
Less than 65 dBa maximum (with doors)
Table A-5
Environmental Specifications (20U Rack)
Feature
Specification
Temperature tolerance
(operating)
+5
°
C (41
°
F) to +35
°
C (95
°
F) (up to 1500 m / 5000 ft.)
+5
°
C (41
°
F) to +30
°
C (86
°
F) (1500 m to 3000 m /5000 ft. to 10,000 ft.)
Temperature tolerance
(non-operating)
-40
°
C (-40
°
F) to +60
°
C (140
°
F)
Relative humidity
10% to 90% operating (no condensation)
8% to 95% non-operating (no condensation)
Summary of Contents for SGI Altix 450
Page 1: ...SGI Altix 450 System User s Guide Document Number 007 4857 002 ...
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Page 139: ...Replacing IRU Components 007 4857 002 117 Figure 6 7 Replacing an IRU Fan B A Tighten screw ...
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