5 pin XLR for DMX 512  
Pin 1 ground (Screen)
Pin 2 data complement (negative inverted) conductor (usually black)
Pin 3 data true (positive non inverted) conductor (usually white)
Pin 4 spare data complement (negative inverted) conductor (usually green)
Pin 5 spare data true (positive non inverted) conductor (usually red)
  
  
  3 pin XLR for DMX 512  
Pin 1 ground (Screen)
Pin 2 data complement (negative inverted) conductor (usually black)
Pin 3 data true positive non inverted) conductor (usually white)
  
  
  3 pin XLR for High End Systems Protocol  
Pin 1 shield
Pin 2 data complement (negative)
Pin 3 data true (positive)
  
  
  3 pin XLR for Martin Professional Protocol (pre MAC 600)  
Pin 1 ground (Screen)
Pin 2 data true (positive)
Pin 3 data complement (negative)
  
  
  3 pin XLR for Martin Professional Protocol (MAC 600 and later products)  
Pin 1 ground (Screen)
Pin 2 data complement (negative)
Pin 3 data true (positive)
  Recent Martin Professional fixtures are fitted with a set of jumpers on the main PCB that allow you to reconfigure the pinout of the data connectors. Please consult your user manual to see if your fixture has this option, and for instructions on how to change the settings.  
  
  
  5 pin DIN for MIDI  
Pin 1 not connected
Pin 2 ground - in / out / through
Pin 3 not connected
Pin 4 positive non inverting - in / out / through
Pin 5 negative inverting - in / out / through
  
  
  4 pin XLR for Chroma-Q colour changers  
Connector metal tab (ground) - drain wire
Pin 1 0 Volts (power) conductor, thick (usually white)
Pin 2 data true (positive non inverted) conductor (usually red)
Pin 3 data complement (negative inverted) conductor (usually green)
Pin 4 24 Volts (power) conductor, thick (usually black)
  
  
  19 pin Socapex for Lighting  
Pin 1 Circuit 1 Live
Pin 2 Circuit 1 Neutral
Pin 3 Circuit 2 Live
Pin 4 Circuit 2 Neutral
Pin 5 Circuit 3 Live
Pin 6 Circuit 3 Neutral
Pin 7 Circuit 4 Live
Pin 8 Circuit 4 Neutral
Pin 9 Circuit 5 Live
Pin 10 Circuit 5 Neutral
Pin 11 Circuit 6 Live
Pin 12 Circuit 6 Neutral
Pin 13 Circuit 1 Earth
Pin 14 Circuit 2 Earth
Pin 15 Circuit 3 Earth
Pin 16 Circuit 4 Earth
Pin 17 Circuit 5 Earth
Pin 18 Circuit 6 Earth
Pin 19 Not used
  
  
  37 pin Socapex for Lighting Control  
Pin 1 - 30 Control circuit 1 to 30
Pin 31 - 34 Control circuit tie lines used on older Avolites control desks
Pin 35 - 37 Control circuit ground