If you want to build simple circuits on a protoboard/breadboard controlled from a Curuxa Main Board, it's very easy:
Steps:
In the following example you can see an MBP40 with 3 LTIND-A (short versions) and a data cable connected to a protoboard. As you can see, Vcc (red) and GND (black) pins from the data connector are connected to the border of the protoboard, which are lines that almost always are used for Vcc and GND and go around the entire protoboard.
The data pin (white) of the data connector controls a very simple circuit comprised of a 1k resistor and a green LED.