The panel only requires AC voltage input to start up...from there it will run on battery backup and feeding DC voltage into the AC terminals seems to trick its trouble circuitry adequately. I'm guessing that the manual quote that you reference would indicate that the panel will not power up with AC below 55.5Hz, however we regularly bring our panels to life (for programming purposes) by connecting the battery and simply putting DC into the AC input for a second or two. This is all it takes to wake the panel up and run off of DC only.
12vdc panel
Sep 08, 2005
30 Replies
The caller would get a buzzy signal.
The basic circuit to reduce a DC voltage would be a simple voltage divider. You'd have to know the current requirements so you could determine the wattage of the resistors. If the current draw were constant this would be pretty simple. The problem with doing what you want to do with a "circuit" is that the current requirements for an alarm panel duing an alarm condition are far greater than when it's not in alarm conditon. So you'd need some kind of regulation circuitry too. By the time you re-invented a voltage converter you could have bought 5 of them.
What circuit would you use to get 12 VDC from 48 VDC? Can some one post one.
You're looking for a DC to DC Converter. Don't forget wattage.
Might be quite "climactic"
With out effecting the Phone operation
I bet people are just lining up to buy depleted uranium personal vibrators too.
I kinda doubt it, but it'd be interesting to see if you can. Let us know...I'd try it but I only have one in stock and I need it to be working on monday :-)
Chernoble Condoms they'll light up your nightlife!
I'm waiting for the depleted uranium condoms. With glow-in-the-dark ribs... :-))
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