Analog to DMX outboard

The analog to DMX outboard is going to be a little box for when you don't have a full lighting desk available. It gets power from the Analog to DMX box, and sends back different voltages, to control the Analog to DMX box, which then controls the DMX devices at the other end.

How

• ONE connection of DA15
  • channels on pins 1 to 12
  • 10v in from Analog to DMX on pin 13
  • Gnd in on pin 14
  • Gnd out on pin 15

Why are there two grounds?

• The Analog to DMX box expects a reference Gnd from wherever it gets it's signal, this can be used, in conjunction with the AREF of some microcontrollers, to boost or cut the diffference between 'reference' and signal (channels), so that was given a separate ground.
• The Analog to DMX also sends ground out to