Thanks, I replaced a fuse and the system works as before now. I haven't touched the smoke alarm setup. One strange thing is I get an alert for the enclosure tamper switch but I have confirmed that this works. With the enclosure sealed the alarm can be armed and if I remove the enclosure the...
I was replacing two smoke alarms to something more modern, not realizing that they were part of the Galaxy alarm setup. When I cut the smoke alarm wires the Galaxy keypad went dead.
I've checked the three fuses in the Galaxy enclosure and they look okay to me. The logic board is powered...