ALL ECG-Dxx gateways support the DMX or Renard Protocols. The difference is that the ECG-DR4 includes DMX/Renard pinout selection whereas the other products (ECG-D2, ECG-D4, ECG-D8) will output the signals on the ESTA DMX standard pins and it is a simple job for the user to swap cable pairs to adapt it to a Renard standard pinout.