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Overview 1-7
Table 1-2 Environmental Parameters (continued)
Parameter Specification
Airflow and Quality
Intake location Front
Exhaust location Rear
Particle size N/A
Concentration N/A
Altitude
Operating 10,000 ft/3,048 m
Non-operating 40,000 ft/12,192 m
NOTE: Higher altitudes are possible if maximum
operating temperature is reduced (see Temperature);
other restrictions may apply such as maximum
permissible altitude for hard drives.
1.2.3.1 Safety
The AlphaServer DS20L power supply must be connected to a properly
grounded, single-phase AC power outlet.
The DS20L (Series EA2014) system meets registered product-safety
certification for the U.S. and Canadian Underwriters Laboratories (UL and
CUL).
1.2.3.2 EMC
Hewlett-Packard recommends the use of high-quality, shielded cables for all
external I/O.
The AlphaServer DS20L (Series EA2014) meets electro-magnetic compatibility
(EMC) requirements for the following:
• Federal Communications Commission (FCC) 47 CFR Part 15 Class A (USA)
• EN 55022:1998 Class A ITE emissions requirements (EU)
• EN55024:1998 immunity requirements (EU)