What is the difference between a data line and a signal line?

The concept of signal line is broader than that of data line. Signals include voice, data, images, etc. The lines that transmit these signals are called signal lines. The telephone line itself is the signal line that transmits telephone signals (voice signals), and the TV cable itself is the transmission of TV signals. (image signal) signal line, but adopt frequency band multiplexing technology (install adsl modem, cable

Modem, data and voice or images are transmitted on the same line, but not the same frequency band) Afterwards, telephone lines and TV cables can transmit data in addition to transmitting the original voice and images. Telecom broadband and radio and television broadband are used for this. principle.

Generally speaking, the data line is relative to the power supply line, which is generally associated with a certain device, such as the mobile phone data line, which is used to exchange data between the mobile phone and other media. The line is also called separately from the clock line, so if you are engaged in communication, it is not wrong to say what the signal line is, not to mention the data line alone, which is not professional enough.

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