I'm tinkering with my garage door motor (Marantec Comfort 220) which have a RJ11 6-pin connector (X10) for an accessory relay board.
The board consists of three (3) relays driven via the RJ11 connector.
So far, I'm guessing the following pins for the outer RJ11 connector (X10) on the board:
- GND Garage light
- All relays, 24 V?
- GND Door open
- GND Door close
Based on the information and photos above, can you help me verify any one of these pins? I might be missing something obvious.
The relay board is quite expensive and I don't actually need the relays. My plan is to read these motor state inputs on a Raspberry Pi via opto-isolators.