OTG is mainly used in a variety of different devices or mobile devices between the connection, the data exchange. USB technology, so that computers and peripheral mobile devices can be a simple USB connection to transfer a variety of data. This will lead to a situation, mobile phone or tablet computer without a computer, we can not manage mobile phones and other mobile device data, so to the user to bring the inconvenience. With mobile phones and other mobile devices more and more like a computer, can we imagine, you can use the phone as a computer? Mobile phone can also connect U disk, USB card and so on? The answer is yes, OTG function is to achieve the phone and U disk and other USB devices can be connected, but the phone is a small USB interface, can not meet the U disk and other USB interface needs, so OTG data line came into being
OTG role, that is, in the absence of a computer case, to achieve the data transfer between mobile devices. As with a single line connection of two mobile devices, the OTG line can connect the device directly for data transfer and printing. Do not need to bring a memory card or computer to send. The most common is the mobile phone through the OTG line connected U disk and other USB devices, thus extending the mobile device function.
OTG data line classification
General OTG line is divided into two, one is needed to connect to the power supply, there is a need not connect the power supply, but their function is the same, are generally used as a USB external device, such as printers, Cameras and other equipment. For example, for example, our phone supports OTG function, but we want to play U disk movies or music how to do? General users can only U disk files transferred to the phone through the computer to play, but as long as through the OTG data cable, we can directly achieve the phone on the U disk file.
Usually we say OTG line refers to the OTG data line, its function is to achieve non-computer mobile devices other than the direct connection to each other, for today's smart phones and Tablet PC are very popular and practical. Through the OTG data cable, we can directly let the phone to connect U disk or other USB devices, greatly aspects of the user to use, OTG line is the b