Whats the pin-out of a DMX cable?
Pin 1 = Ground Pin 2 = Signal -ve Pin 3 = Signal +ve (These pin numbers are true for both 5-pin and 3-pin connectors, although strictly speaking 3-pin connectors should not be used as they don’t comply with the official DMX512 standard.) Some older Martin fixtures (such as the Roboscan Pro 518 and Robocolour 400) use the older Martin Protocol which switches Pin 2 and 3 so the pinout is Pin 1 = Ground Pin 2 = Signal +ve Pin 3 = Signal -ve If using these fixtures along side fixtures with standard pinouts, you’ll need to create an short adapter (M-F, for use after the last standard fixture, and F-M for use before the next standard fixture) using the wiring shown below 1-1 2-3 3-2
