Hi

I would like to add an extra siren to my alarm system, I already have a pyronix belle which draws approximately 420 ma and I believe the maximum power output for my panel is 1280 ma approximately, however I have a elmdene 1 amp 12v psu just powering smoke detector so I would like to wire the siren trigger from the main panel and take the power from the psu but in theory it shouldn't work as it is not completing a circuit so I would need to know if it's possible to take the + and - from the psu then add a relay and wire it from the bell trigger cable to switch when the alarm is triggered, so the positive and negative wire into the relay and the positive stays connected but I only switch the negative in full alarm? Is this possible?

Thanks in advance

I know the Pyronix Belle well and you will find is more like 500mA.

PSU would be required unless you use SCB mode.

You shouldn't have a system running anywhere near it's maximum output.

 

You will need to common the negatives from the PSU's and also consider how you will get the tampers to work together.

Yes you can switch a relay taking power from another psu, what alarm panel is it?

Thanks, it's just a standard lynteck two wire electronic siren and the panel is a modern alarms series 3400 but one of the keypads just says 9600? I think. Or I could get another 8 ohm speaker and add that to the system instead? Which would be my best bet?

Internal?

Series the speakers together?

Ok thanks that's what I'm going to be doing at the weekend I will update when I've done it thanks again

Just be sure to use speakers on speaker terminals and sounders on power outputs if that makes sense

Yep thanks it would burn the speaker out if I connected it to the power output, don't worry I won't I will be connecting it the the speaker terminals in the panel and yes I have the engineer code

Hi me again........ I've got a 16 ohm speaker that I'm going to fit but the existing one is 8ohm will this be ok to fit?

Yes but just wire in series