Pretty simple device. On another more exciting note, based on the current track, this channel will hit 1000 subscribers by the end of November. I will try to make a special video for that event, but no promises.
In my old channel in 2016 I had a real Wheelock AS. And I ordered some parts and and made a ''TEST AS 4 WIRE". And it worked and I had a fire alarm board with a, Wheelock AS, System Sensor Spectr Alert Classic Ceiling Mount Strobe, Simplex 4051, Kidde Smoke Alarm, FireLite BNG-1R Single Action Pull Station, Simplex 2099-9756 Dual Action Pull Station, FireFit (my brand) S Pull Single Action Pull Station, And A FireFit MK1 Stopper. And I had no panel so I made a silence alarm switch that killed the power to the horns till I reset the pull station, then I could turn the power back on to the horns.