When it comes to the USB interface, everyone must be very clear.
Yes, the USB interface is used in conjunction with the USB cable. But what exactly does the USB interface of an industrial computer do? I believe some customers still don't know this well. Want to know more about the function of USB interface, please follow us!
First of all, let me talk about the definition of USB interface
USB, which is the abbreviation of English Universal Serial Bus (Universal Serial Bus), is an external bus standard used to regulate the connection and communication between computers and external devices. It is an interface technology applied in the PC field. The USB interface supports plug-and-play and hot-plug functions of the device.
Secondly, we understand the difference between the more popular USB2.0 and USB3.0
In order to distinguish the two interfaces of USB2.0 and 3.0, the colors of the two interfaces are different. The USB interface of the 3.0 type is blue in the core. If it is 2.0-selected, the USB interface is generally black or white.
In terms of transfer speed, USB3.0 transfers files faster than 2.0. The highest transfer rate of USB2.0 is 480Mbps, which is 60MB/s. The actual transfer rate of USB3.0 is about 3.2Gbps (ie 400MB/S).
Finally, let’s take a look at the role of the industrial computer USB interface
The functions of the USB interface and the COM interface of the industrial computer are similar, and they are used in conjunction with external devices.
Our common industrial computer USB interface uses:
1. USB mouse, keyboard equipment, box, game handle;
2. Industrial printers and scanners;
3. Camera, data flash disk, SD connection slot;
4. External optical drive, mobile hard disk, mobile phone charger, USB network card;
5. Communication equipment ADSL Modem and Cable Modem.
In addition, there is also a USB port that can also be connected to a USB night light, a USB fan, a USB electric heater, etc., with a charging function. However, the USB interface is rarely used to do these things on industrial computers.
To sum up, the USB interface and COM serial port of the industrial computer are used on external devices, and they have few basic functions. According to the standard interface on the external device, choose whether the industrial computer uses the USB interface or the COM serial port.
However, for industrial sites where vibration is used, the stability of the connection between the interface of the industrial computer and the external interface device is required. Generally, the USB interface is not used, but the COM serial port is used. This is because a double nut can be used for locking in the COM port.
