Industrial-grade RS485 to Ethernet converter featuring hardware upgrade with Power over Ethernet (PoE) supply and power/signal isolation for safe, reliable operation Multi-functional device integrates serial server, Modbus gateway, MQTT gateway, and RS485 to JSON converter for flexible industrial protocol communication and IoT connectivity Compact rail-mount design for easy installation, supporting multiple communication modes including Transmission Control Protocol Server/Client, UDP, and UDP Multicast Facilitates cloud integration with user-defined heartbeat packets, NTP time synchronization, and multi-host polling to prevent communication crosstalk Simple web browser configuration, supports DHCP and DNS; ideal for data acquisition, PLC monitoring, smart metering, and security system networking