With the development of network technology and modern communication technology, the future Internet of Things era will play a very important role, and it will become the link connecting perception networks with traditional communication networks. As a gateway device, the Internet of Things gateway can realize protocol conversion between perception networks and communication networks, as well as different types of perception networks. The power supply module is the core component of the gateway product and plays a crucial role in the stability and life of the product. This article briefly explains the AC/DC power module, 485 communication isolation module and 232 communication isolation module used in gateway products .
► Scene application diagram
► Scheme block diagram
► Power supply module product physical diagram
► Power supply features
Jiangsu active AC/DC power supply module EA25-S12 is designed for industrial grade products, with good electromagnetic compatibility and long-life design materials, suitable for various industrial occasions with harsh environments.
► Product Introduction
EA25-S12:
Ultra-wide voltage input 85-264VAC (120-370VDC)
Working temperature: -40-+70℃
Complete protection functions: output short circuit, over-temperature protection functions
Industrial-grade product design
TD301D485H:
The main function will be to convert the logic level to the differential level of the RS-485 protocol to achieve signal isolation; it is an RS-485 protocol transceiver module that uses IC integration technology to realize power isolation, signal isolation, RS-485 communication and bus protection. The product comes with a fixed voltage isolation power supply, which can achieve 2500VDC electrical isolation. The product can be easily embedded in user equipment, making the device easy to realize the connection function of the RS-485 protocol network.
TD301D232H:
High-speed single-channel isolated RS-232 transceiver, suitable for bidirectional data communication, with the highest baud rate up to 115.2kbps. The transceiver has an integrated isolation DC/DC converter. It only requires a single power supply to achieve electrical isolation between the controller and the RS-232 transceiver. The highest isolation voltage reaches 2500VDC, and there is no need to configure an isolated power supply, which is convenient for user applications.
► Technical Documentation
EA25.PDF
485 Transceiver Module.PDF
232 Transceiver Module.PDF