In the early 1990s, mobile phones must be connected to computers with USB cables to achieve data transmission. With the continuous development of the smartphone industry, mobile phones can now operate directly with U-disks, keyboards, printers, etc. through USB OTG cables. Device function. For the difference between the USB charging and data sync cable and the USB OTG cable, most people are not very clear, Sinodec Industrial CO., ltd. in china will tell you the difference between the USB cord and the OTG cable?
There are two main differences between the USB data line and the OTG cable, as follows:
1. The functions of the two connecting lines are different:
The USB cable can only be used as a data transfer to connect your phone to your computer. The OTG cable can realize non-computer mobile devices to connect with each other, and the mobile phone directly connects with USB external devices such as a USB flash drive, a mouse, a keyboard, and the like through an OTG data cable.
2. The 4th pin of the USB data cable is left floating. The 4th pin of the OTG data cable is shorted to the ground, and the mobile phone chip determines whether the OTG data cable or the USB data cable is inserted through the 4th pin; one end of the OTG cable has The root PIN will be connected to a GND to let the machine know who is the HOST host and who is the Device peripheral.
The above is the different application of USB cable and OTG cable, so the processing technology and production control points are different, Sinodec Industrial Co, ltd. has 16 years of processing of connecting lines, data lines, custom line data, micro USB cable, usb Type C cable and usb lighthing cable for apple IOS device, we offer OEM service and wholesale service, small MOQ and fast delivery time.