That is simply the supply being split off to also supply something else.
2 way switch vs 3 way.
A two way switch 2 connections to the switch not including ground turns lights on or off from 1 location only.
At one switch you run a 12 2 wire from the switch to the light.
These valves are defined by the number of ports they use.
A four way switch.
A three way switch 3 connections to the switch not including ground can turn lights on or off from 2 locations.
The 2 way switch or single pole double throw switch is a three terminal switch.
If i am correct i think you are wanting to know how to connect a 3 way switch where you can turn off an light at 2 locations.
2 way valves as their name suggests consist of two ports.
The on off can change depending on the position of the second three way switch.
How do they function.
How to wire a 3 way switch with multiple lights how to wire a double 2 way light switch 2 way light switch wiring two way switching explained how to wire 2.
An inlet port a and an outlet port ab on the other hand 3 way valves consist of three ports.
Speaker systems specialize in creating a large number of sound waves and adapt the differences.
The most often encountered kinds of speaker systems are three way and two way car speakers.
Before jumping straight into the feature specific table let s go through some useful information.
It s okay if this is too complex for you.
Together with the changing levels of sound waves.
It s not unusual to have 2 wires on the common terminal.
So what is a 2 way switch.
2 way vs 3 way switch.
Take a look at the switches in your home.
Here 1 terminal is the input and the other two are used as outputs.
Colors are totally inconsistent in 3 way switches the next one you see might have red and white travelers.
Single pole switches with one switch controlling one light are marked with an on and off position.
Every 3 way switch circuit is different.