The last step in the manual of the SS controller is clearly noted on how to connect the wires to the nodes. It says:
"Once completed you can connect your lights feeder cable (make sure it is the input end of the lights) or your pigtail from Ray on to the SSC as shown. Make sure the wires are connected to the correct pad. They are marked as Data, - , + to show power and signal. "
In my case with rectangle nodes and not using pig-tails, the picture colors are wrong. I went by looking at the picture and not reading. This was wrong of me.
Be sure to not make my mistake.
Ron