What Is a Connecting Cable?
A connecting cable is a cable used to connect different types of equipment.
A typical example of an old connecting cable is the cable used to connect an NES to a TV. Officially, they are called RCA connecting cables. They transmit signals from the NES to play video and audio on the TV.
Connecting cables are used to connect a component to speakers, a recorder to a TV, and so on, among other applications.
Uses of Connecting Cables
Connecting cables are used in a wide range of applications, from video and audio to industrial applications.
The most common type of connecting cable found in homes is the video cable. In recent years, HDMI cables have been the most commonly used video cables. For audio, coaxial cables have long been used.
LAN cables are also a type of connecting cable. Connecting cables such as USB cables are also widely used for computers.
Principle of Connecting Cable
Connecting cables can be divided into analog and digital signals, although the data to be transmitted and the principle differ depending on the model and signal type.
A typical example of an analog signal is an audio connecting cable that connects earphones, speakers, and amplifiers. The first mechanism of an audio signal connecting cable is that the diaphragm inside the microphone vibrates. The vibration of the diaphragm is transmitted to the coil, which is under the influence of a magnetic field and is converted into an electrical signal as the coil vibrates. The converted electrical signal is processed by a signal amplification device called an amplifier and then transmitted to a speaker or similar device. Speakers have the same structure as a microphone and convert the signal into sound by vibrating a diaphragm. In analog signal processing, most devices continuously take a physical quantity and amplify it after it is converted into an electrical signal.
Typical cables for digital signals are USB cables, LAN, and other connecting cables. Digital signals are structured to transmit signals by repeating two signals, ON or OFF, based on a defined sampling rate. It is resistant to noise, and the amount of data transmitted can be increased by varying the sampling rate.