Two zone conventional call point and bell not functioning

Call point and bell not functioning,, you need diode in4007 and resistor 800 oms to 1k..
For bell non polarity you need diode in4007
For callpoint cant detect us alarm, you need resistor 800 oms to 1k adjustable values..

[@georgesabinorio6856]

My tutorial po b kau boss ng hst conventional fire alarm detection systm 8 or 16 zone

[@user-sb7lj7ht8m]

Bos anong sira sa..smoke na kahit anong pauso hindi mag detik