RS232

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RS232 is one of the oldest communication protocols in the world. It has been around since the early days of computing and is still widely used today. This protocol is commonly used to connect computers, terminals, printers, and other devices to each other. RS232 is not limited to just computers, it is widely used in industrial and manufacturing applications as well. In this article, we will discuss the application field and working principle of RS232.

Application Field of RS232

RS232 is used in many different kinds of applications. The most common applications include:

• Connecting computers, terminals, printers, and other devices
• Industrial and manufacturing applications such as controlling machinery and sensors
• Fault recovery applications like tracking and monitoring system signals
• Communication of medical devices such as patient monitors and hospital telemetry
• Embedded systems that require high speed communication
• Commercial audio/video equipment such as satellites for broadcast television
• Automotive applications such as in-vehicle air bag systems and engine controllers

RS232 is also commonly used for connection to barcode scanners, remote control systems, and other kind of RFID readers. Furthermore, RS232 has been used in aircraft instrumentation, navigation systems, and GPS.

Working Principle of RS232

RS232 works by using a serial communication protocol that utilizes two lines for transmission and reception of data. The two lines are used to send and receive data in a single direction, similar to a traditional phone line. The most common signals sent over these two lines are known as “mark” and “space”. A mark is a pulse sent from the transmitter to the receiver while a space is a silence indicating that the signal was received. In the data transmissions, a start bit is sent first, followed by the data itself and then a stop bit.

Data is transmitted in a synchronous method. This means that the receiver is listening for the transmitted data while the transmitter is sending it. This helps to ensure that the two are communicating and that data is not lost. The RS232 protocol uses a two-way handshake where the transmitter and receiver must acknowledge each other before the data is accepted.

The RS232 protocol is normally used to connect devices that are close together, usually within 15 feet. To communicate over longer distances, other communication protocols such as Ethernet, Bluetooth, and Wi-Fi can be used. The RS232 protocol is also used to connect multiple devices at a single time, such as connecting a printer to a computer to send data and receive commands.

RS232 is a great protocol for connecting computers, terminals, printers, and other devices. It is widely used in many different industrial and manufacturing applications, as well as in medical devices and automotive systems. The working principle of RS232 is based on a two-way handshake and serial communication protocol. RS232 is great for connecting devices in short distances, while other communication protocols can be used for longer distances.

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