The audio cable is a two-core shielded cable, and the common connectors are RCA (commonly known as Lotus head), XLR (commonly known as XLR head), and TRS JACKS (commonly known as pen plug).
Video cable, referred to as video cable, consists of two parts: video cable and connector. The video cable is a coaxial shielded cable with a characteristic impedance of 75Ω (ohms). Common specifications are divided into wire diameters. There are two types -3 and -5.
According to the core wire, there are two types: single-core wire and multi-core wire. The common specifications of the connector are divided into two types: crimp connector and welding connector according to the cable end connection method. According to the equipment end connection method, there are two types: There are two types: BNC (commonly known as card head) and RCA (commonly known as lotus head).
Extended information
In terms of the nature of signal transmission, there are two different types of audio signal lines.
1. Universal type of interconnection, you can use it to connect a variety of playback devices.
The signal energy transmitted by interconnection universal cables is very weak. These signals do not require much energy when transmitted, and simple cables can be used to transmit signals from the signal source. The internal current of interconnecting general-purpose signal lines is extremely weak, typically only a few milliamperes.
2. Speaker amplification type, this type of signal line is used to connect the power amplifier.
Speaker-amplified signal lines, on the contrary, have to bear the task of transmitting signals with a lot of energy in the cable. Because all the energy transmitted in such signal lines will eventually be used to move the speaker's paper cone to convert electrical energy into kinetic energy.
Baidu Encyclopedia-Audio Signal Cable
Baidu Encyclopedia-Video and Audio Cable