The Electronic Industries Association (EIA) formulated and released the RS 485 standard in 1983, and it was revised by the Telecommunications Industry Association (TIA) and named TIA/EIA-485-A. Since the proposed standards proposed by EIA are all prefixed with “RS”, in…
Serielle Schnittstelle rs422
RS-422 RS-422 (EIARS-422-AStandard) is the serial port connection standard for Apple’s Mac in osh computers. RS-422 is developed from RS-232 and is proposed to make up for the shortcomings of RS-232. RS 422 is a one-way, balanced transmission method for…
Siemens DP Kommunikation Fehlerverfahren
Siemens Profibus DP communication is often used for communication between PLC and other PLCs, remote substations, frequency converters, bus instruments and third-party DP equipment. The program is simple and the wiring is convenient. However, once the red light on the…
Was ist ein Schutz gegen den Ausfall von Leistungsschaltern?
What is breaker failure protection? When the main protection action of the faulty electrical equipment issues a trip command but the circuit breaker refuses to operate, the protection action information of the faulty equipment and the current or other information…
Was ist ein Kondensator?
Capacitor is the most commonly used device in circuit design and is one of the passive components. Simply put, an active device is a device that requires an energy (electricity) source. It is called an active device. A device that…
Kenntnisse der elektrischen Steuerung, praktische Algorithmen für die elektrische Steuerung
1. 50 pieces of electrical control knowledge 1. According to the classification of uses, low-voltage electrical appliances are divided into control electrical appliances, main command electrical appliances, protective electrical appliances, distribution electrical appliances and executive electrical appliances. 2. According to…
Lokalisierung und Lösung des Problems der niedrigen Downloadrate im LTE-Netz
When users use 2G and 3G networks, their main requirement for network quality is whether the quality of calls is stable. However, with the popularity of LTE network technology, many network users are more concerned about the speed of network…
Optimierung der Fehlerbehebung bei 802.11n Wifi-Störungen
This article introduces in detail the common Wifi channel interference faults (including assisted channel interference and overlapping channel interference) in areas where APs are densely distributed. For different fault types, simulation experiments are conducted under different level environmental conditions to…
Research and application of micro base stations in LTE networks
Based on the current LTE network construction, due to the increasing density of buildings in people’s living environment, not only will the diffraction performance of LTE high-frequency networking wireless signals deteriorate, but it will also reduce the network coverage area…
Application of 4G communication technology in the Internet of Things
The application of the Internet of Things has greatly promoted the development of our country’s economy, especially the promotion and use of 4G network technology, which has brought opportunities for the development of the Internet of Things technology. Therefore, the…