Re: DC only alarm panel

[Jim <alarminex@xxxxxxx>]

On Feb 7, 8:52=A0pm, Frank Kurz <t...@xxxxxxxxxxxxx> wrote:
> On 07/02/2011 1:49 PM, Techvoid wrote:
>
> > Hola
> > what small alarm panel can be used with 12vdc battery power only with a
> > solar charger?
> > what sized battery and what charger have you used or seen in this type =
app?
> > sunny deep south us.
> > will I still get a power out trouble and will this cause any problems?
> > read where some guy called jiminex said the fbi xl2 would not cause trb=
l if
> > a jumper was installed. =A0where does the jumper go? =A0any other panel=
s that
> > would work?
> > 3 doors and a motion and of course an audible notification appliance.
> > gracias
>
> You can power your panel with another 12 battery. =A0Hook it straight up
> to the AC input. =A0That way your solar panel only needs to charge the
> first battery. =A0The system will keep the other charged. =A0Any panel wi=
ll
> do, but the smaller ones tend to draw less in the way of power. =A0On som=
e
> panels you may wind up with a "brown out" condition if the input voltage
> isn't high enough so if your solar charger is having a problem
> maintaining at least 13.1 to 13.4 VDC the keypad's could go into AC
> trouble mode. =A0I think you'll have a better chance with the FBI XL-2
> product. =A0It uses a 12VAC transformer rather than the standard 16VAC on=
e.
>
> --
> Frank Kurzwww.firetechs.net

The DC input to the panel is polarity sensitive.

So .... if you apply the battery to the transformer terminals and the
panel doesn't power up. Reverse the polarity of the input.