
B.1 Electrical and Environmental
The following sections provide tables and illustrations showing the electrical and environmental specifications.
B.1.1 Electrical
The 
TABLE B-1 Electrical Specifications
| SUPPLY | SAS (Max | 
| Management power | Less than 100 mA | 
| 
 | 
 | 
| +12V (spin up less than 8 secs) | 1.5A (18W) | 
| 
 | 
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| +12V normal operating | 1.0A (12W) | 
| 
 | 
 | 
| +12V (idle) | 0.75A (9W) | 
| 
 | 
 | 
| Off State | Less than 0.4W | 
| 
 | 
 | 
| Max current draw | 1.5A during  | 
| 
 | 
 | 
B.1.2 Environmental
The environmental values are listed in the following table.
TABLE B-2 Environmental Specifications
| Specification | 
 | Enterprise SAS | 
| 
 | 
 | 
 | 
| Temperature | Operating (ambient) | 5ºC to 55ºC | 
| 
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 | 
 | 
| 
 | Disk enclosure surface | 5ºC to 60ºC (operating) | 
| 
 | Nonoperating | |
| 
 | Gradient | 3 ºC/min – (20ºC/hour) | 
| 
 | 
 | 
 | 
| Relative humidity | Operating | 5% to 95% | 
| 
 | Nonoperating | 5% to 95% | 
| 
 | Maximum wet bulb | 29ºC (operating) | 
| 
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 | 
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