i will see if i can find my camera,  there are 5 switches total   one on each end of the x and y screws and one one the top of the z, don't know if they are limit or home , maybe 1 home for x and one home for y  and the other 3 are limit,  but i really don't know for sure. and i am assuming that the breakout board is in the control box? is that right?