I'm tinkering with my garage door motor (Marantec Comfort 220) which have a RJ11 6-pin connector (X10) for an accessory relay board.

No152133 diagram

The board consists of three (3) relays driven via the RJ11 connector.

No152133 board top No152133 board top No152133 board bottom

So far, I'm guessing the following pins for the outer RJ11 connector (X10) on the board:

  1. GND Garage light
  2. All relays, 24 V?
  3. -
  4. GND Door open
  5. -
  6. 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.

  • \$\begingroup\$ did you get any further with your raspberry pi project? I'd be interested in the pinout details as well, as I'd like to add bright LEDs to a point which I can see from my house. I measured DC voltages of pins 4 and 6 against pin 2 as you suggested (over 7.5k load), but couldn't confirm what we think they do. Measured at a Comfort 220 from 2003. Best regards, Klaus. \$\endgroup\$ – Klaus Oct 27 '19 at 17:48

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