Transfer case position indicator lights?

[DirtyDeeds]

ok guys I'm swapping my trans and t case out of my 96 cherokee into my 2wd comanche. my question is does any one know how the indicator light system for a NP242 t case works? i need to figure out how it works so i can wire up the indicator lights up when i do the swap. i assume that when you change gears in the t case it tiggers a switch that turns on the light when it engages.

 

so can any one tell me how it works so i can figure out how to wire up my lights?