A logical and consistent family of products for interfacing organ consoles to virtual organ packages such as Hauptwerk.  The family comprises four encoders, which convert switch and pedal movements into MIDI, and three decoders, which either control lighted pistons and stops or move Stop Action Magnets (SAMs).

All of these boards can be powered from a standard 12v DC supply.  They do not require any configuration files or use of MIDI Sysex commands.  They are configured by jumpers and DIP switches, which are fully explained in the instructions.

Each of the boards can operate independently of the others.  One board is sufficient to get you started: you don't need central CPU boards, nor do you need separate output drivers.  However, these encoders and decoders can work intelligently together, for example to detect the movement of a SAM and cut off current to the magnet.

For an example of how these cards can be used together, take a look at this Compton console conversion.