On Wed, Mar 10, 2010 at 07:23:30AM +0000, Matthew Seaman wrote:
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> On 10/03/2010 03:34:52, Gary Kline wrote:
> > Well, long-story-short, the most unepect thing happened: a
> > power surge. I did not realize that my printer was also off
> > until hours later. A friend helped me trace the problem and
> > reset my surgge-protector. ---It is worth noting that BEFORE
> > I got my battery [UPS], when things were dead or suddenly
> > went dead, i knew right away to check the surge-protector.
>
> Uh -- if you have a UPS, why are you using a surge protector as well?
> The function of a UPS is to condition your power supply. It puts
> out clean 110/220V 50/60Hz power (depending on where you live)
> irrespective of what it is getting from the mains. That is, the UPS
> also does all the surge protection function itself. Not only that, it
> should cope with surges by absorbing them, rather than blowing a circuit
> breaker, so it carries on running after the surge is over.
>
> Admittedly some UPS designs are better than others -- inline UPSes are
> the best, but tend to be more expensive. These work by converting the
> input to DC and then converting back to AC. Cheaper UPSes monitor the
> characteristics of the incoming current and switch to battery power if
> it is out of specification, which is not really failsafe.
>
> Also, didn't your UPS sound the alarm? They are normally too loud to
> ignore easily.
>
(This is all new to me, first, and I do not have
everything plugged into the UPS, second. I don't have
the unit fully configured [via X11] so want to keep the
load as light as possible. )
The unit is an APC manufacture; should be closer to the
top of the line -- that's just my guess. What happened
yesterday morning was that my DNS and firewall, router
and widescreen kept on working ... :-D Now it's time for
me to finish the task on upgrading and maintenance.
Trying to decide whether to build another home-brew
computer or buy one off the shelf.
gary
> Cheers,
>
> Matthew
>
> - --
> Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
> Flat 3
> PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
> Kent, CT11 9PW
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--
Gary Kline kl...@thought.org http://www.thought.org Public Service Unix
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