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:
http://www.mgelectronics.com/productdetails.cfm?productid=104
Now when 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 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?
Thanks again
http://www.mgelectronics.com/productdetails.cfm?productid=104
Now when 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 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?
Thanks again
