I thought SCBs were the ones that had the voltage going directly to the bell box and when the alarm sets off, the hold off is cut sounding the bell using its own battery and SABs were the ones that had the trigger voltage?
Well because it looks pretty cool in my eyes and ive always wanted an early electronic display sort of panel in my collection of ye olde burglar alarms.
I think it would be 2 for hold off and the other two for tamp return and trigger, usually an SCB module would use the bell box battery to run the bell and a SAB module uses a trigger voltage to power the bell.
Can any one help me with identifying a few of these terminals on this old ADT box.
PID and anti drill.
Also does the tube markings mean i can have an extra xenon tube for an inside flash if someone were to get inside the box?