Now we have the trains running properly and the points installed it is time to think about being able to control the points (track switches) remotely. The simplest way is using the well proven wire-in-tube method, and on some layouts this method of control is perfectly adequate. However if your layout is a bit larger then we really need something a bit more convenient for you to operate all your points.
As is usually the case, there is no single correct or best way to achieve remote point operation. There is the choice of solenoid or motor driven systems.
Fig.1. Lever switch or push button point operation, two wires plus common to each point.
Fig.2 Single changeover switch point operation, one wire plus common to each point.