On all of these UPS's, the inverter is going to make some type of noise. The
better ones that are able to put out more than about 400 Watts will have a
fan. Some allow you to disable the alarm. If not, you can wire a switch in
series with the alarm that is inside, if it is easily accessible, but this
will void the warranty.

What we do in the sound and production studios, is that we locate the UPS's
in another room with the computers. The computers all have fans in them, and
are also noisy. We have the monitors, keyboards, and mouse's extended with
Cybex boxes, or the equivalent. If you want the computers in the same room,
you can always have the UPS's in another room, and run AC extensions through
the walls.

--

JANA
_____


"Tom S" wrote in message
ink.net...
If anyone knows of more relevant newsgroups to post this to, we'd
appreciate the info.

We're trying to find an uninterruptible power supply (~1000VA or
more) for a quiet environment (residential living room). Which
means the unit must not have any fans, buzzing noises etc while it's
operating, and above all else, must have an option to disable any
audible alarms it might have.

We've been searching for a month and haven't found anything so far.

Any help greatly appreciated,

Tom