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Fire Alarm System Into Intruder Alarm


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Posted
yes it would work as lsong as your main current is taken from the psu.

So I would use the main board and psu in the panel to run the PCB & Detectors & RKPS etc and prob one sounder strobe and the Smart PSU to run the other sounders and house a 2nd battery.

Posted
ID personally put more load on the smart psu (as its rated at 3A) and less on the panel. Remeber to size the batteries correctly.

I didnt know that the smart psu was bigger, makes perfect sense.

How do you size up the batteries then ?

Guest old-hand
Posted
Two 12v 7.2aH should do the trick shouldnt it ?

what is the total MA draw you have?

Guessing will not meet regs.

Posted

Regs are for pro's ... which I aint :-)

Are we talking passive draw or full active draw ?

Passive draw with all PIRS open is about 291mA without the keypads, PCB etc

Active draw is approx 1.4A

So 2 x 12v 7.2Ah batteries would provide 8.4Ah's nearly 29hrs of standby - is that right ?

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