[mythtv-users] Uninterruptible Power Supply

Jerome Yuzyk jerome at supernet.ab.ca
Tue Dec 22 07:09:37 UTC 2009

On Monday 21 December 2009, Raymond Wagner <raymond at wagnerrp.com> wrote:
> On 12/22/2009 1:23 AM, Tom Sparks wrote:
> > are UPS worth the cost?
> > How many hours should I am for?
> > should I connect my wireless router to the ups?
> What exactly do you think a UPS is for?  They are designed to run for
> several minutes during a moderate power outage, and then inform the
> machines to cleanly shut down before the battery goes critical.  Under
> full load on fresh batteries, you likely won't get much more than about
> 10 minutes out of one.  If you are looking for *hours* of operation
> running one or more Myth boxes and their attached TVs, you need to
> invest in a generator.

Perhaps an even greater benefit of a UPS is power conditioning and 
smoothing, especially for 24/7 devices. Clean power is nice to have for 
power supplies. I UPS my machines, routers/switches and even my telephone. 
Every few years I buy a new one and relegate the older one to optional 
devices like my cellphone charger, inkjet printer, a spare 15" flatscreen, 
and even a fluorescent lamp. From times I've had a monitoring UPS (or 
bothered to set up monitoring), living in older houses, or even 
apartments, power can vary widely around 120VAC. A nice battery smoothing 
out those variances can help your electronics last longer.

A little of Jerome's MythTV World: http://mythtv.bss.ab.ca

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