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What are the common ports of intelligent touch devices and what are their functions?

What are the ports on a Smart Touch device? Smart touch devices include two main categories: all-in-one computers and monitors. To put it simply, the ports that should be found on ordinary computer hosts and monitors are available on smart touch devices. According to the application direction of different ports, when a smart touch device is selected, whether a certain type of port is designed has also become a key point of selection. Today, I will mainly introduce the commonly used ports, what role they each play, and which interfaces are essential in which devices.

1. HDMI high-definition multimedia interface
High-definition multimedia interface is a digital video/audio interface technology. It is a dedicated digital interface suitable for video transmission. It can transmit audio and video signals at the same time. The maximum data transmission speed is 48Gbps. At the same time, there is no need for digital/analog or analog/digital conversion before signal transmission.

VGA video transmission interface
2. VGA (Video Graphics Array) is a video transmission standard introduced by IBM with PS/2 in 1987. It has the advantages of high resolution, fast display rate and rich colors, and has been widely used in the field of color displays. . Does not support hot plug, does not support audio transmission.

3.BNC interface
The BNC connector is the connection between the wire and the camera when the camera equipment is output in the monitoring project. A special display interface that is different from the ordinary 15-pin D-SUB standard connector. It consists of RGB three primary color signals and five independent signal connectors for line synchronization and field synchronization.

4. COM communication device interface
COM (cluster communication port) is a serial communication port, referred to as a serial port. Usually COM 1 uses a 9-pin D-shaped connector, also known as an RS-232 interface, while COM 2 uses an old-fashioned DB25-pin connector, also known as an RS-422 interface, which is currently Rarely used.

5. RJ45 Ethernet interface
RJ45 is a kind of information socket (ie, communication terminal) connector in the wiring system. The connector consists of a plug (connector, crystal head) and a socket (module). The plug has 8 grooves and 8 contacts. RJ is the abbreviation of Registered Jack, which means "registered jack". In FCC (Federal Communications Commission Standards and Regulations), RJ is an interface that describes a public telecommunication network, and RJ45 of a computer network is a common name for a standard 8-bit modular interface.

6.LAN interface
The LAN interface (local area network interface) is mainly used to connect the router with the local area network. Because the types of local area networks are also varied, it also determines that the types of the router's local area network interfaces may also be diverse. Different networks have different interface types. Common Ethernet interfaces mainly include AUI, BNC, and RJ-45 interfaces, as well as FDDI, ATM, and optical fiber interfaces. These networks have corresponding network interfaces.

7.I/O interface lO interface is the link between the host and the controlled object to exchange information. The host exchanges data with external devices through the I/O interface. Most of the I/O interface circuits are programmable, that is, the way they work can be controlled by the program.

In a word

The above interfaces include video conversion and display, communication connection and network, data exchange and control, and basically include the basic interface requirements of smart touch devices. The current DC interface, the common interface USB, etc. are not introduced here.

Smart touch devices are widely used. In addition to meeting the system operation requirements, the interface design also aims to increase the expansion of auxiliary applications. Different application fields have different choices for touch-only devices, which also affects people's perception of it. The solution given by many companies is to accept industry interface customization to meet customer needs.

Of course, it is not only the interface that can affect the choice. Performance, compatibility, installation method, average trouble-free working time, touch method, etc. are all decisive ways that can affect the choice. This time we briefly introduce the interface, and we can introduce others next time.


Post time: May-16-2022

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