For the garage opener you need to connect it to regular house wiring 14awg minimum on a dedicated.
Garage door opener receiver wiring.
It runs from the opener to the receiver.
Typically the receiver mounts directly to the three terminals on the door operator.
The remote or wireless keypad sends transmits a signal radio frequency to the garage door opener.
The model 1090 109020 1 channel receiver is designed for use in residential garage door operator applications.
If the garage door opener recognizes the signal sent the garage door will open or close.
An 11 inch wire antenna extends from the receiver.
Strip back 3 4 inch of the insulation from the end of the wire and connect the wires to the corresponding screws.
Once the wire is connected to the electrical outlet you can now connect the electric garage door opener to the electrical outlet.
These are to be used for yor garage door receiver.
A wiring diagram is a simplified conventional pictorial representation of an electric circuit.
Collection of liftmaster garage door opener wiring schematic.
The outlet should be labeled as to which of the side screws the white and black wires connect to.
It shows the parts of the circuit as simplified shapes and also the power and signal connections between the devices.