Quote:
Originally Posted by Cinisajoy
What is UPS?
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Uninterruptible Power Supply.
You plug your computers into the UPS, and the UPS into the wall.
The UPS provides power conditioning and a smooth even flow of power at 120 volts/60 cycles, and has internal battery backup to keep the power going to computers long enough to gracefully shut them down if the power fails.
Computers don't like voltage spikes/brownouts and misbehave when they occur, so power conditioning may be more important than battery backup.
The ones I've dealt with can communicate with the systems plugged into them, send a shutdown command if the power fails, and keep them going long enough for a proper shutdown to occur.
How long they can maintain power is a function of size, and some of them are very large indeed.
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Dennis