ERIC SKOGEN

Why aren't the pins arranged in numerical order clockwise? Well the DIN standard allows both 3 and 5 pin variations. A 3-pin DIN connector is numbered clockwise: 1, 2, and 3 are evenly-spaced across 180°. But the 5-pin DIN adds pins 4 and 5 between them... The MIDI DIN arrangement is sometimes referred to as 5/180°: 5 connection points spread out over 180°... These are all different solutions to the same problem: how do you map the 3 pins used by a MIDI connector to the 3 connection points of a TRS minijack plug?