The industrial computer motherboard has a 5-pin JP_COM1 interface with a jumper cap. What is this interface used for?

php editor Xigua, hello! Regarding the jumper cap on the 5-pin JP_COM1 interface of the industrial computer motherboard, it is actually used to control serial communication. Serial communication is a common method of data transmission between devices. Various external devices, such as printers and scanners, can be connected through the serial port. The jump cap is used to set the communication parameters of the serial port, such as baud rate, data bits, check bits, etc., to ensure accurate transmission of data. Different position combinations of the jump cap can be set with different parameters and adjusted according to specific needs. In this way, the industrial computer can conduct stable data interaction with external devices.

The JP_COM1 interface of the industrial computer motherboard has 5 pins and a jumper cap. What is this interface used for?

is used to connect to the com interface. That is, the serial interface (Serial port) is also called "serial port",

is mainly used for serial bit-by-bit data transmission.

Nowadays motherboards generally do not integrate this interface, leaving only one socket JCOM1.

If you want to use the serial port, you need to buy a connecting cable and connect it to JCOM1 on the motherboard.

The other side is the COM interface.

The com interface is generally used for debugging external devices and communication, and generally does not need to be connected.

What do no and com on the air conditioning motherboard mean?

The com and no on the circuit board are the common terminal lines and the positive line. In the primary battery, the device is the power source, and the electrode from which the current flows has a higher potential, which is the positive electrode. This electrode plays a reducing role, that is, ions or molecules obtain electrons; in the electrolytic cell, the device is an electrical appliance, which is subject to the connected power source. The electrode connected to the positive electrode of the power supply performs oxidation, that is, ions or molecules lose electrons, which is different from the original battery.

What is the interface of motherboard com?

COM serial port The COM port is usually also called a serial port. It is a 9-pin D-shaped interface (also called a male connector) on the computer motherboard. In the early days, it was used to connect peripherals such as mice (the corresponding interface is a 9-hole female connector), but now it is generally only used to connect ordinary modems. The Console port in network equipment also uses a COM port.

Nowadays, many new motherboards no longer lead out the COM socket. Instead, they put it on the motherboard to make pins, and lead it out when used, because many peripherals are now made into USB, and COM sockets are used. There are fewer people.

What is the interface of com1?

com1 refers to the RS-232 interface. An interface generally refers to an abstraction (which can be another entity) that an entity provides to the outside world. It is used to separate external communication methods from internal operations so that it can be modified internally without affecting the way other external entities interact with it. Just like the multiple abstractions provided by object-oriented programming.

Interfaces may also provide some sense of translation between entities that speak different languages, such as humans and computers. Because the interface is an indirect method, it will cause some extra burden compared to direct communication. The interface between humans and information machines such as computers or between humans and programs is called user interface. The interface between hardware components of information machines such as computers is called hardware interface. The interface between software components of information machines such as computers is called software interface.

What does access control com mean?

The COM on the access control power supply is the common terminal, which actually means it is connected to the negative GND. It is usually together with the NO NC terminal of the electric lock.

The wiring method is like this,

Connect COM and NO to unlock the electric lock (meaning that these two terminals are not powered on at ordinary times and only have power when unlocking)

COM and NC are connected to the power-off unlocking type electric lock. (It means that these two terminals are always powered, and are powered off when unlocking)

What does computer motherboard com1 mean?

Serial communication port.

Serial interface (Serialport), also known as "serial port", also known as serial communication interface (usually referred to as COM interface), is an expansion interface that uses serial communication. Common ones include RS-232 for general computer applications (using 25-pin or 9-pin connectors) and half-duplex RS-485 and full-duplex RS-422 for industrial computer applications.

What are the com pins of the motherboard?

CPU pin is a type of interface. The CPU needs to be connected to the motherboard through a certain interface in order to work. After so many years of development, the interface methods used include pin type, card type, and contact type. , pin type, etc. The most commonly used CPU interface is a pin-type interface, which corresponds to the corresponding slot type on the motherboard. The pins on the motherboard refer to the CPU socket or other expansion pins.

What is the COM port on the motherboard?

Serial communication port. COM port: A motherboard usually has two COM serial ports. Usually used to connect mice and communication equipment (such as connecting external MODEM for data communication), etc.

The COM port connector on a PC is usually a 9-pin male D-shells connector.

COM pin definition is the same as RS-232C interface definition (DB9)

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