[...]

> > If i buy a standard-UPS, is there a Connection and a software to shutdown
> > my cx in the some minutes, if the power is down?
> 
> Well, here at our university has every server and router an ups, and
> they use a COMERCIAL software that shutdown the servers if the ups
> will become to exhausted during a powerdown.

If you buy a "Best Power" brand UPS, you can ask them for documentation
on their serial protocol.  They'll provide you with example source code
as well.


Carl