Click the blue text to follow Servo and Motion Control RS232 and RS485 are common interfaces in low-voltage electronics. Many friends have mentioned the differences between them, so today let’s explore them together. 1. Physical Structure of the Interface 1. RS232 Interface: RS-232 uses an unbalanced transmission method, known as single-ended communication. In contrast, RS485 … Read more
Serial communication is the most basic communication method faced by electronic engineers, with RS-232 being the simplest among them. Many beginners often struggle to understand the relationship and differences between UART, RS-232, RS-422, and RS-485. This article will discuss the understanding of these concepts to help clarify their relationships. If we compare serial communication to … Read more
Ke Ruida Nationwide Service Hotline: 400-666-1916 1. Different Transmission Methods. RS-232 uses an unbalanced transmission method, known as single-ended communication. In contrast, RS-485 employs balanced transmission, i.e., differential transmission. 2. Different Transmission Distances. RS-232 is suitable for communication between local devices, with a transmission distance generally not exceeding 20 meters. RS-485, on the other hand, … Read more
1. Different Paths, Same Goal RS-232, RS-422, and RS-485 all belong to UART, which stands for Universal Asynchronous Receiver/Transmitter. They can complete communication using just two signal lines (Rx and Tx); However, due to the different voltage levels used by each, converting from UART to RS-232, RS-422, or RS-485 requires a conversion chip like the … Read more
Introduction to RS-232 Serial Port Data transmission between computers or between a computer and a terminal typically employs two methods: serial communication and parallel communication. Serial communication is widely adopted due to its lower cost and fewer lines used, especially in remote transmission, which avoids inconsistencies caused by multiple lines. In serial communication, both parties … Read more
Serial communication is the most basic communication method that electrical engineers face, with RS-232 being the simplest of them. Many beginners often get confused about the relationship and differences between UART and RS-232, RS-422, and RS-485. This article will discuss the understanding of these concepts to help clarify their relationships. If we compare serial communication … Read more
Abstract: This article introduces three common serial data standards: RS-232, RS-422, and RS-485, according to their technical specifications and electrical interfaces. It discusses cable termination techniques, the use of multiple loads, RS-232 daisy chain connections, conversion from RS-232 to RS-485, conversion from RS-485 to RS-232, and powering RS-485 conversion from RS-232 ports. Introduction “The wonderful … Read more
Table of Contents 1. Interface Types and Signal Definitions 2. Logic Levels 3. Communication Rates 4. Serial Communication Topology 5. Application Circuits ✍ Welcome to click here to join the hardware electronics group of San Pao Er. Hello everyone, I’m San Pao Er; today’s notes are about the RS-232 protocol/interface. The RS-232 serial data communication … Read more
What Is USB? USB is a universal serial bus interface standard used to connect computer systems and external devices for data transmission and power supply. Advantages: High-Speed Transmission: The USB interface provides high-speed data transfer rates, suitable for quickly transferring large volumes of data. Hot Swappable: USB devices can be plugged and unplugged while the … Read more
–––Tips:Click the blue text for more previous highlights content.––– High speed railway signal technology exchange Front line ▏ Applicable ▏ Products Content Overview ID: gaotiexinhao Introduction to RS-232, RS-422, and RS-485