USB Data Cable, Mini
USB data cable, mini
In our daily lives, we make extensive use of electronic devices including cell phones, laptops, tablets, game consoles, digital cameras, etc.
All of these items require charging.
The charging cable we use the most frequently in daily life is the MINI USB data cable.
The USB data cable has two functions: data transmission and charging. When you connect your mobile device to your computer using a USB cable, you can use the computer to access the files and photos on the device. You can also download files and photos to the device while simultaneously charging it. Not bad, huh? Convenient.
Of course, the USB data connection is not the only item available for data transmission.
The OTG data cable, which has more benefits than data cables, can connect various electronic products or mobile devices for data exchange.
It was first announced by the USB Implementers Forum in 2001. Since the USB data cable is used to link the mobile devices we use to the PC, data exchange can only be managed by the PC.
Once the mobile devices are removed from the PC, no device can stand in for the PC as the host computer, so no transmission operation can be carried out between the mobile devices.
The fact that mobile devices could previously only be connected to PCs for data exchange has been changed by the development of OTG data lines. OTG data lines can be used to connect mobile devices to PCs without the need for a physical connection.
The keyboard, digital camera, etc. can be directly connected to view files, expand functions, and transmit data.
They can also be connected to a U disk to view data and upload and download files and pictures.
They can also be connected to a mouse and keyboard to play games and type. It is very practical to use when you are not near a computer.
How does the mobile phone distinguish between the OTG data cable and the USB data cable when it is connected to an external device via OTG and needs to provide power to the external device?
The fourth pin of the USB data line is floating, and the fourth pin of the OTG data line is shorted to the ground after the two wires have been separated. Whether the USB data line or OTG is inserted through the fourth pin should be determined by the mobile phone chip.
Data line, and make a decision about whether to activate the OTG power supply using this.
The hardware distinction is that the OTG cable has a PIN on one end and a GND grounding cable on the other, allowing the computer to distinguish between the host (HOST) and the external device (Device).
The OTG data line makes a difference.
