What does line control mean?

Line control mainly refers to the connection method between the signal generator and the signal receiver, which is transmitted to the object for connection through cables or other actions. Wire control is a specific phrase in the electromechanical industry, which refers to a physical control method in electromechanical control.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

Line control refers to a physical control method in electromechanical control. Wire control is a special term in the electromechanical industry. It is a physical control method in electromechanical control, which mainly refers to the connection method between signal generator and signal receiver. It is transmitted to the object through cables or other actions, such as using wires to pull a bell to make it sound, and turning on and off some car oil circuits to control flow.

Extended information

Line-controlled headphones——

Line-controlled headphones regardless of the interface type (audio interface, USB interface, etc.) are basically connected using four wires. The "common return line GND" is the common return line for the left and right channels of the headphones, microphone, and output control. This principle is certain, but the manufacturer wants to Monopolize interests and do some tricks on online functions.

For example, the plug has four electrodes from top to bottom. If the first and third electrodes are reversed, the phenomenon will be that the headset is silent, the line control fails, and the microphone fails; if the third and fourth electrodes are switched After the wiring is reversed, the phenomenon is that both headphones are silent. When making changes, you only need to smooth out the wiring at the micro switch according to the schematic diagram.

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