What is the OTG line?

　　What is the OTG line?

To understand what the OTG line is, first we need to understand what OTG functions are on the phone or other mobile devices, OTG: On-the-go, that is, in the absence of a computer as a transit point, directly connect the mobile phone USB disk, card reader, MP3, keyboard, digital camera and other external equipment for data transmission, Input functions such as operation or charging. What do you want to do with MP3? With OTG, the USB interface between the handset and the MP3 can be used to communicate data between the two devices via OTG.

　What is OTG?

OTG is primarily used for data interchange between a variety of devices or connections between mobile devices. With the development of USB technology, computers and peripheral mobile devices can transmit all kinds of data by means of simple USB connection. This can lead to a situation where a mobile phone or tablet computer without a computer, we can not manage mobile devices such as mobile device data, which brings inconvenience to users.

As mobile devices such as mobile phones become more and more like computers, can we imagine using mobile phones as computers? Mobile phone can also connect u disk, USB network card and so on? The answer is yes, OTG's function is to realize that the phone can be connected with USB devices such as U disk, but the phone is a tiny USB interface, Can not meet the USB U disk and other needs, so far OTG data line emerged.

OTG's role was to implement data transfer between mobile devices without a computer. As opposed to a single thread connection to two mobile devices, it is possible to connect the device directly to the data transfer and print operation through the OTG line. No need to bring a memory card or a computer to transmit. The most common is the mobile phone through the OTG line to connect USB devices such as U disk, thereby expanding the mobile device capabilities.

　　OTG Data Line Classification

The general OTG line is divided into two types, one is the need to connect to the power supply, there is no need to connect the power, but their functions are the same, generally used as a connection to USB external devices, such as printers, cameras and other equipment. For example, our phone supports OTG functionality, but what if we want to play the movie or the music on a U disk? Users can only transfer the file through the computer to the mobile phone to play, but as long as through the OTG data line, we can directly implement the mobile phone on the U disk on the file.

For example, for example, we usually buy a tablet computer, only support WiFi wireless Internet access, if we want to achieve 3G wireless Internet access? It is also very simple, as long as our tablet supports OTG capabilities, we can connect the tablet to the USB 3G network card via the OTG data cable. The realization of the tablet computer can also achieve 3G wireless internet, the following figure: