As FvM wrote , There are different pinouts of real devices. True , there is many.
Even one connector can have many different names.
A TRS connector (tip, ring, sleeve) is a common family of connector
typically used for analog signals including audio. It is cylindrical
in shape, typically with three contacts, although sometimes with two
(a TS connector) or four (a TRRS connector).
It is also called an audio jack, phone jack, phone plug, and jack plug.
Specific models are known as stereo plug, mini-jack, mini-stereo,
headphone jack, tiny telephone connector and Bantam plug.
Here is some pinouts..........