following diagram to address your DMX512 channel for the first 4 units.4 channels:5 channels:8 channels:5.DMX512 Configuration4 channels mode:CHANNEL VALUE FUNCTION1 0 – 255 RED: 0% 100%2 0 – 255 GREEN: 0% 100%3 0 – 255 BLUE: 0% 100%4 0 – 255 WHITE: 0% 100%5 channels mode:CHANNEL VALUE FUNCTION1 0 – 255 RED: 0% 100%2 0 – 255 GREEN: 0% 100%3 0 – 255 BLUE: 0% 100%4 0 – 255 WHITE: 0% 100%5 0 – 255 DIMMER: 0% 100%12 A