Hello,
I have some fire alarm demo videos on you tube and would like to show you so here they are i have more that i will put in a reply.
https://www.youtube.com/watch?v=8udOVSO8S1c <<< System Sensor P2R On Continuous
https://www.youtube.com/watch?v=kT87q6h6V8s <<< System Sensor P2R On Code 3
https://www.youtube.com/watch?v=4VyghmF8g-0 <<< Wheelock ASWP-24/75C-FR On Code 3