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activity is required, the drive makes a transition to Standby mode. In both Idle and Standby mode, the drive accepts all commands and returns to Active mode when disc access is necessary.
2.10Environmental specifications
2.10.1Ambient temperature
Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. Actual drive case temperature should not exceed 69°C (156°F) within the operating ambient conditions.
Above 1,000 feet (305 meters), the maximum temperature is derated linearly to 112°F (44°C) at 10,000 feet (3,048 meters).
Operating: | 0° to 60°C (32° to 140°F) |
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Nonoperating: | |
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2.10.2Temperature gradient
Operating: | 20°C per hour (68°F per hour max), without condensation |
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Nonoperating: | 30°C per hour (86°F per hour max) |
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2.10.3Humidity
2.10.3.1Relative humidity
Operating: | 5% to 90% noncondensing (30% per hour max) |
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Nonoperating: | 5% to 95% noncondensing (30% per hour max) |
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2.10.3.2Wet bulb temperature
Operating: | 33°C (91.4°F max) |
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Nonoperating: | 40.0°C (104°F max) |
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2.10.4Altitude
Operating: | |
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Nonoperating: | |
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10 | U Series 9 Product Manual, Rev. D |