I know NewAgeServerAlarm once made a simple relay-based panel that he called the “5001-DC”, not sure where the schematic for it might be found today though (it was on his website but that’s been dead for years).
I know NewAgeServerAlarm once made a simple relay-based panel that he called the “5001-DC”, not sure where the schematic for it might be found today though (it was on his website but that’s been dead for years).