DCB

Roland pre-MIDI era Interface, digital to control Roland Juno60 and Roland Jupiter8 and the Sequencer for the Juno 60 JSQ60. There are 2 companies who offer DCB to MIDI Interfaces.

The MSQ700 and the Juno 60 plus some Versions of the Jupiter 8A had DCB, shortly after that MIDI was introduced and Roland started to use MIDI in 1983 with the Jupiter 6, the first MIDI Synth (along with the Prophet 600 form SCI)