wrote:
On Sun, 17 Nov 2013 23:37:06 -0600, Leon wrote:
out because of the low voltage coming from the UPS as it was running out
of back up power. He created his own brown out machine. The whole
tuner/DVR had to be replaced.

Thanks for making me feel confident.

If only the DVR could power down like a computer does when the power is out
for more than a few minutes

I'm a little confused here. Most UPS' (at least mine does) can be
configured to power down if it starts getting low on battery power.
This is a function of the UPS and not some program like Powerchute
which lives on a computer.

My UPS and my BIL's is designed to work with a computer. It communicates,
it's state of charge and or how long the power had been out, with the
computer via a USB cable. When the UPS reaches a preprogrammed condition it
signals software on the computer to shut down computer before all power is
lost. IIRC there is a warning on the computer screen and an audible alarm
on the UPS when power is lost. This gives you enough warning of the event
and time to save your work should you actually be working on the computer
when this all happens.

A DVR cannot communicate with a UPS.

You mention that your UPS can be configured to power down if it starts
getting low on battery power. Is yours not intended to be used with a
computer and or does your computer simply lose power from the UPS vs.
shutting down before the UPS shuts down?