Power the Frog?
LION does not even bother to power the switches. Subway cars of him have 48 wheel pickup. Slip switches and crossovers are no problem.
ROAR
The Route of the Broadway Lion The Largest Subway Layout in North Dakota.
Here there be cats. LIONS with CAMERAS
This diagram should be helpful http://www.ngtrains.com/Pages/TRA/blue_point.html#Spec
If your question is how to attach the wire to the Atlas frog, it depends. The snap switches are plastic and cannot be powered. Some people tap the metal frogs with a 1-80 brass screw and solder to that. There are several threads about powering Atlas frogs.
Henry
COB Potomac & Northern
Shenandoah Valley
Has anyone had experience with powering the frog on an Atlas turnout using Blue Point controllers? Trying to figure out how to wire them correctley