





It had slipped down to be causing false alarms when the door was locked and pulled on.
This has to be the worst one I have ever seen
I was at a customer location adding a door to the S2 system. The maintenance guy asked if I knew anything about lighting controllers. I looked at it, it is the original from the new build 20 + years ago. It has a z-80 processor and a bunch of socketed dip chips. I didn't measure the voltage that was being switched, but the 4 square j-boxes say low volt lighting triggers.