I can tell you that one. One wire hookup, no special layout wiring.
No special wiring? That depends on what type of layout you are building. I am building a operating layout with lots of switching capabilities (and yes, loop running too) with Ross/Gargraves trackage for the greater flexibility I get with that. I chose Lionel's LCS as my control system. The PHs, PMs, ACS2, BPC2, CSM2, SER2, sensor track, and all that special cabling is not only expensive, but not fun hooking it all up.