What is the difference between a mobile phone data cable and a charging cable? What is the role?
Apr 19, 2018| Usually we buy a data line in the market, if you do not determine the line to be able to data transmission business, a lot of unscrupulous businesses will take some cheap charging line to impersonate the data line to buy you, you will find that charging is nothing The problem is that when you use to connect a mobile phone to a computer, no matter how you do it, you cannot connect the computer. Because this is a charging cable, it can only be charged and cannot be transmitted. Therefore, it cannot be connected to a computer. And I worked in the data line manufacturers for 7 or 8 years. In the data line industry, I can be considered as an old fritter, and I still have some understanding of this knowledge. Let's analyze what is the difference between mobile phone data lines and charging lines. Yet? What is the role?
First recognize the wiring of the mobile data cable:
Red line: Positive power supply (marked on the wiring: +5V or VCC)
White line: Negative voltage data line (Identified as: Data- or USB Port -)
Green line: positive voltage data line (identified as Data+ or USB Port +)
Black line: ground (labeled as GROUND or GND)
Cell phone charging line connection mode:
Red line: Positive power supply (marked on the wiring: +5V or VCC)
Black line: ground (labeled as GROUND or GND)
Looked at the above two sets of wiring data analysis, surely everyone has got to know it, if you do not understand, the simplest way to distinguish: charging line with positive and negative two cores on it (2 cores), and The data line will have to add two cores in order to transmit data (4 cores).
Cellphone data line
Their role is respectively: the mobile phone charging line can only be charged and can not transmit data; and the mobile phone data line can both charge and transmit data.
In order to save costs, a lot of data line manufacturers have eliminated the middle two wires, that is, they have omitted the reading data lines and write data lines (green and white lines), and they have no data reading and writing ability and can only charge. . So when you buy the data line later, pay attention and don't buy it again.