I boght an Alarm panel pro. My problem is, that i have an external Siren from Aritech witch is battery backed. It needs to be powered with 13,8 volt. Can i power it from my old alarm panel and use only the alarm1 to trigger it or can i power it directly from the alarm panel pro?
If you are powering your panel with PoE, that power is limited, and may not be enough to power the alarm, depending on it’s wattage. If it’s powered by a wall wart transformer, it should be enough. If your panel resets when you turn the alarm on, that means it didn’t have enough power for both the siren and the alarm panel.