BOC Pin identification for DMX and LED connectors

hanale · BOC Pin identification for DMX and LED connectors

I would like to build my own DMX to BOC cables and connect the Nichia LED's I have purchased to the BOC board. Does anyone know the pinouts of these connections on the BOC board? Maybe you have the BOC DMX cable already and can tell me which pins on BOC connect to Pins 1, 2, and 3 on the DMX connector.

I was told that there was a schematic of the BOC board in the support forum, but have not found it yet. Has anyone run accross the schematic of the BOC in the support area?

Thanks!

kennyw76

ok i dont have one of these boards. but from the pictures you can see resistors out from the header pins one should not and that will be your pos pin and the one with the resistors is neg pins

go here to see a picture of the board with some info
http://skulltronix.myfreeforum.org/BoC_Connection_Guide_about124.html

and this is another
http://skulltronix.com/boc.html

hanale

Well here's the pinout info of the DMX and LED connectors on the BOC board. Pin 1 on the BOC connectors are marked with a triangle symbol close to the edge of the board. If you can't see this symbol look at the bottom of the circuit board and pin 1 is the square solder pad. The other pins are circle looking solder pads.

DMX ------------ BOC
Pin 1 Pin 3
Pin 2 Pin 2
Pin 3 Pin 1

LED ------------- BOC
Anode Pin 1
Red Pin Pin 2
Blue Pin Pin 3
Green Pin Pin 4

I purchased a regular 10 foot DMX cable for DMX lighting and cut it in half. I installed a connector on the cut end that fit the BOC three pin connector. I insalled a connector on the other DMX half so I can daisy chain BOC boards or install a terminator which is easy too make as well.

I purchased the Nichia LED's as indicated on the SkullTronix website. The longest Pin on the LED is the Anode. There will be one pin on one side of the long Anode pin and two on the other side. The single pin on the one side is the Red pin. The pin next to the long pin on the two pin side is blue and the pin on the other side of the blue is green.

If your familiar with PC building the power connector that usually goes to the floppy drive fits the BOC LED connector. It has a four pin connector that you can use to connect the LED to the BOC. I just cut the wires about four inches up from the PC power connector and solder them to the LED as per the pinout described above. The connector will fit perfectly into the BOC LED connector.

I tested all these cables with the BOC board and they worked perfectly. I'll connect the servos in my Lindberg skull to the BOC board and see how this works out.

Here's a picture of the LED cable I made:

Click to see full size image
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