Manufacturer: SIEMENS Product Model: 6ES5525-3UA21 Product Type: Communication Processor Communication Interface: RS485 Transmission Rate: 9600bps to 1Mbps Power Supply Voltage: 24 VDC Operating Temperature Range: -25 ° C to + 60 ° C Protection Level: IP20 Weight: Approx. 0.3kg SIEMENS 6ES5525-3UA21 communication processor is a high-performance communication module specially designed for industrial automation control system.It supports a variety of communication protocols, including RS232, RS422 and RS485, and can achieve fast and stable data transmission. This communication processor is designed with advanced circuit technology and high-quality components to ensure its reliability and durability in a variety of harsh environments. With a wide operating temperature range from -25 ° C to + 60 ° C, the products are suitable for a variety of industrial sites.At the same time, it also has a long communication distance, especially when using RS485 interface, up to 1200 meters, which makes it very suitable for data transmission tasks in large factories or distributed control systems. In addition, the compact size of the communication processor, only 100mm X 60mm X 30mm, makes it easy to install and integrate into existing control systems.In order to facilitate the user's operation and maintenance, the communication processor is equipped with intuitive LED indicators, which can display its operation status. Whether conducting field commissioning or routine maintenance, these indicators provide the necessary information to help users quickly locate problems and take appropriate action. In a word, the SIEMENS 6ES5525-3UA21 communication processor has been widely used in the field of industrial automation because of its excellent performance, reliable stability and convenient operation characteristics.