Pin matrix


The Pin matrix is a compact and visual to way to semi-permanently route signals or program devices, such as in early digital electronics or lighting control boards.

Disadvantages

The number of patches that can be made is limited and the proximity of signal wires in the matrix can cause crosstalk.

Synths that have used a pin matrix

Also known for being used to patch some synthesizers. Generally inputs are on one axis and outputs on the other and a pin inserted where the two axes meet establishes a connection.