Silicon Graphics Total Performance 9300, Руководство пользователя

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Enclosure Specifications
007-4644-001 93
Wiring and Power
The enclosure is a 120/220 VAC, 50/60 Hz unit that meets standard voltage requirements
for both domestic (USA) and international operation. It uses standard industrial wiring
with a line-to-neutral power connection (see Table A-6). Review the following
specifications when preparing the controller enclosure installation site:
• Earth ground: The unit must be properly grounded, including an earth ground
conductor on the AC power source.
• Circuit overloading: Make sure the power circuits and associated circuit breakers in
the rack and building provide sufficient power and overload protection. To prevent
possible damage to the unit, isolate its power source from large switching loads (for
example, air conditioning motors, elevator motors, factory equipment, and so on).
• Power interruptions: The unit will withstand the following voltage interruptions:
• Input transient: 50% of nominal voltage
• Duration: One half-cycle
• Minimum frequency: Once every 10 seconds
• Power failures: Once power is restored after a complete power failure, the unit
automatically performs a power-on recovery sequence without operator
intervention.
• Power supply voltage range: The wide-ranging, redundant 175-W power supplies
operate on 90–264 VAC at 50 or 60 Hz. The power supplies meet domestic and
international requirements and can operate at any voltage within the specified
range.
Table A-6 Site Wiring Voltages for System Enclosures
(Single-phase Line-to-neutral)
Frequency Range
50 Hz Nominal
Minimum
Maximum 100
90
107 127
114
136 220
198
235 230
207
246 240
216
264
60 Hz Nominal
Minimum
Maximum 100
90
107 120
104
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