How do you wire a 2 wire smoke detector directly to an alarm (no panel). The terminals are numbered 1,2,3,4 and the instructions say that 1 is for DC+ and 2 is for DC-. How do I wire an alarm so when the detector senses smoke, the alarm goes off? Thank you.
you would have to have a dc transformer, but what it appears that is to be wired into a home sec system. I may be wrong what is 3/4 for?
That's DC alarm ,mean you should connected in to 9 volt battery. There are 4 wire alarms that are design for serial alarms. Smoke alarm it's required ,without AC power act and also With AC power act .mean if AC power go off then system will respond on battery power .
A 2-wire smoke detector? You mean one that plugs into AC? You cannot wire those into any alarm system. If you had a 3-wire (for linking multiple AC-powered units), you might be able to connect an external 120vac relay that closes the alarm contacts when the third (often yellow or blue) wire is switched on. Hardwired smoke alarms for an alarm system get a 12vdc voltage from the panel and also have a pair of dry contacts that are either normally open or (more likely) normally closed until the sensor is triggered.
