176 views Yuda Electronic (HK) Technology Co.,Limited. 2018-05-22
When we purchase a mobile phone, the standard data cable will be used. The data cable can be used as a charging cable. We all know that we mostly think that the charging cable is a data cable, but it is not. This article will focus on the relationship between the two. Tell everyone the differences between USB charging cable and data cable?
Because the shape of the charging cable is basically the same as that of the USB data cable. This is often the case. We sometimes buy a line on the roadside to connect the mobile phone and the computer. However, no matter how we operate, we cannot connect the computer. Why is this?
In fact, the reason is this: the data cable and the charging cable are all using a USB interface, and generally there will be four lines, but the charging cable uses the two lines of the power supply VCC and GND, and the data cable is used is VCC , GND, and two communication lines.
The role of the four wires in the USB data cable:
Red line: Positive power supply (marked on the wiring: +5V or VCC)
White line: Negative voltage data cable (Identified as: Data- or USB Port -)
Green line: positive voltage data cable (identified as Data+ or USB Port +)
Black line: ground (marked as: GROUND or GND).
Of course, the color of the wire can only be seen when peeling the data cable or the outer rubber of the charging cable.
The data cable has four lines in the USB interface, and the charging cable has only two lines in the USB cable. Therefore, the data cable can be a charging cable, but the charging cable cannot be used as a data cable. Because in order to save the cost, basically the charging cable has removed the middle two lines, and the read data cable and the write data cable (green line and white line) have been removed, which means that there is no data reading and writing ability and it can only be charged. This is why the data cable can be charged and the charging cable may not be able to use it as a data cable.
Shenzhen Yuda original phone accessories supplier, wholesale pure original USB cable products, daily average sales of more than 50,000, including Apple, Samsung, LG, Huawei and other original USB cable, sold around all over the world.
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