It is designed to open/close the curtain when using the S168-4Y or S168-6Y motors only.
The 110V electrical wires (Ground, Live, Neutral) should be connected to this Wall Switch.
The Motor has open wires which are also connected to this Wall Switch.
Since the Wall Switch is usually located at a convenience spot and far away from the Motor, an extension electrical cable should be pull to connect between the Motor location and where the Wall Switch is mounted.
Instruction File 1 Instruction File 2