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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)