Making APC 500 Back UPS (basic) work with FreeBSD

[Donald J. O'Neill]

On Tuesday 21 February 2006 09:53, Ian Lord wrote:
> At 10:32 2006-02-21, Peter wrote:
> >--- Ian Lord <lordi at msdi.ca> wrote:
> > > At 09:09 2006-02-21, manish jain wrote:
> > > >Hi,
> > > >
> > > >   I just purchased an APC 500 Back UPS (the
> > > > basic model, not the pro/smart one). It does
> > > > not have any serial/usb interface. Can I get
> > > > apcupsd or any other daemon to work with it so
> > > > that the system automatically shuts down before backup supply
> > > > runs out
> > >
> > > ?
> > >
> > > >   If someone can attach a sample configuration file, I shall be
> > >
> > > grateful.
> > >
> > > >   Thanks
> > > >   Manish Jain
> > >
> > > How do you think freebsd will know the ups is
> > > about to stop providing energy if the ups has no serial or usb
> > > port ?
> > >
> > > :)
> >
> >Maybe he can try using the ESP protocol?
>
> Not too sure what you are talking about, the only esp protocol I know
> is for encryption during a vpn connection... But basically, this ups
> is so "dumb" the only connection between the pc and the ups is
> through the power cable... Unless you find a way to communicate
> through that, there is no way you can know there is a power outage
> (lol unless there is a speaker and you use a microphone to listen for
> the alarm :)
>
I think in this case, he was referring to extra sensory perception. But, 
since this is evidently a model that just sits there and supplies 
backup power until the battery is too depleted to AC power to the 
computer at an acceptable level, and at that point the computer shuts 
off. I would say this model is not capable of esp.

Don