Continuing ignition timing debate from the 416 thread.

Do you know what machine I have? It doesn’t trigger like a Sun does. The machine gets triggered from the SOURCE, so on points or ANY system that acts like points like a Unilite the machine gets triggered by the “points” or in the case of the Unilite it triggers off the green wire, which is just like triggering points.
How does it trigger on a msd 2 wire?