In industrial automation and monitoring systems, the stability and reliability of data transmission are crucial. RS-485 and RS-232, as two common serial communication standards, each have unique advantages and limitations. Especially in terms of long-distance cable transmission, achieving stable and efficient data communication has always been a focus for engineers. This article will delve into … Read more
1 Introduction In 1983, the Electronic Industries Association (EIA) approved a new balanced transmission standard known as RS-485. Investigations reveal that RS-485 is highly acclaimed and has been widely applied in industrial, medical, and consumer products, becoming the dominant specification for industrial interfaces. This application report provides design guidelines for engineers who are unfamiliar with … Read more
In engineering, the RS485 control line is often mentioned. What exactly is it? Today, let’s discuss the applications related to RS485. By delving deeper into RS485, you will find that there is indeed a lot of knowledge involved. We will choose some common issues that need to be considered in weak current systems for everyone’s … Read more
Search WeChat Jicheng Training JICHENGPEIXUN Serial port, short for serial port interface, is also known as serial communication interface or COM interface. Serial communication refers to a communication mode that uses a serial communication protocol to transmit data bit by bit over a single signal line. Serial ports are classified according to electrical standards and … Read more
Source: https://juejin.cn/user/3931509313252552/postse In communication and IT work, networking is essential, and the most important protocol in the network is TCP. Whether in actual work or in written exams and interviews, you can’t escape TCP. I have read documents related to TCP in the RFC, examined the source code related to TCP in Linux, and looked … Read more
The Concept of OSI: Open System Interconnect is a reference model defined by ISO (International Organization for Standardization). It is a flexible, robust, and interoperable model, not a protocol, commonly used to analyze and design network architecture. The OSI model is divided into seven layers: OSI divides the network into seven layers, from bottom to … Read more
This article organizes knowledge related to the TCP-IP protocol through two diagrams. The TCP communication process includes three steps: establishing a TCP connection channel, transmitting data, and disconnecting the TCP connection channel. As shown in Figure 1, a schematic diagram of the TCP communication process is provided. Figure 1 TCP Three-Way Handshake and Four-Way Disconnect … Read more
Cisco Certification | Huawei Certification | IT Technology | Network Engineer 👇3000 people technical exchange QQ group, remark 【official account】 for faster access In today’s information society, network communication has become the backbone of global information exchange. The TCP/IP model, as the core protocol of internet communication, not only reflects the inevitable choice of technological … Read more
Click the blue text above to follow us Resource Release Huawei Certified Beginner to Advanced Practical Course ↓ Scan to watch the video ↓ 1 1. OSI Reference Model The seven-layer model, also known as OSI (Open System Interconnection), is a standard framework established by the International Organization for Standardization (ISO) for interconnecting computer or … Read more
Click the blue text above to follow us Resource Release Huawei Certification Beginner to Advanced Practical Course ↓ Scan to watch practical videos ↓ 1. Concept TCP/IP (Transmission Control Protocol/Internet Protocol) is the communication protocol for computers connected to the internet. A communication protocol is a description of the rules that computers must follow to … Read more