I install an M1G two years ago when we built a new house. It has worked great with 48 zones, 4 keypads, 3 HAI thermostats, 4 temperature sensors and 20 Insteon switches. Recently we had a bad electrical storm and the telephone modem circuit on the M1G board seized the line, disabling the home phone system. This happened even thought I had an Elk-950 surge protector in the phone line. I replaced the M1G board and everything is back to normal. I also added an Elk-952 in line with the Elk-950 as an added protection.
I would like to repair the circuit so that I would have a spare, but need a schematic of the circuit. I have checked the relays and opto-isolators, but don't know the rest of that circuit. Does anyone have access to a schematic? Thanks.
I would like to repair the circuit so that I would have a spare, but need a schematic of the circuit. I have checked the relays and opto-isolators, but don't know the rest of that circuit. Does anyone have access to a schematic? Thanks.