Re: Using self contained siren with a siren driver

[Mike rock <mikepier@xxxxxxxxxxxxx>]

On Sep 26, 7:59=A0am, NickMark <nmarkow...@xxxxxxxxx> wrote:
> On Wednesday, September 26, 2012 6:21:07 AM UTC-4, Mike rock wrote:
> > I have a Napco home security system.Recently I renovated the hallway
>
> > in my house and wanted to eliminate the ugly bullhorn siren that was
>
> > visible in my hallway to a more sleek looking siren. So I purchased
>
> > this:
>
> > =A0http://www.mgelectronics.com/productdetails.cfm?productid=3D104
>
> > =A0When I went to install it, I noticed only 5 VDC at the wires when
>
> > activating the siren, but it still worked, so I just left it. Now I
>
> > realize why I was getting only 5V out. Turns out I have a siren driver
>
> > in my panel, and my old bullhorn was actually a speaker only. And I
>
> > can't re-wire the speaker wires in the panel to the +12V bell output
>
> > because I have a second bullhorn in my attic by the gable vent thats
>
> > being fed(paralleled) by the same pair in the hallway ( It is spliced
>
> > somewhere in the attic). If I did that, the siren in the hallway would
>
> > work, but not the speaker in the attic. So now I'm not sure what I
>
> > should do. Should I just leave it since its working, or maybe bypass
>
> > the circuit board in the siren and just go directly to the speaker?
>
> > By the way,the driver is an Altronix ALSD2.
>
> > =A0Thanks again
>
> If you can bypass the siren board in speaker and go direct to it. that is=
 best way to do it otherwise you will eventually damage the Napco panel- Hi=
de quoted text -
>
> - Show quoted text -

OK, will try that.

One other thing I noticed is that the +12V bell output from panel,
goes to the  input of  the siren driver and only hooked up to "Yelp",
and nothing was hooked up to "Steady". Does this mean in the event of
a fire alarm, it will not sound a steady tone, only a yelp tone?