1、Professional Design: A RS232 485 device data collector (IoT gateway) specially designed for industrial environment applications, combining serial server, for Modbus gateway, MQTT gateway, serial to HTTPD Client and other functions in one. 2、Multiple Interfaces: RS232, RS485, WiFi and Ethernet interfaces, which can realize serial to WiFi, serial to Ethernet, Ethernet to WiFi and other functions. Multiple power supply interfaces on board, support 6~36V wide voltage supply. 3、Applications: Industrial grade metal housing design, support wall and rail mounting, compact size, easy installation, suitable for data acquisition, IoT gateway, security IoT and smart meter monitoring and other fields. 4、Mode Support: Industrial grade serial server RS232 485 to WiFi and Ethernet support TCP server, TCP client, UDP server, UDP client transparent transmission mode. 5、Support Multiple Networking Modes: Support AP mode, STA mode, AP + STA mode multiple wireless networking modes, support APLAN, APWAN, router, bridge mode multiple wired networking modes. 6、Features: Multiple configuration modes, AT command mode, socket distribution protocol, hardware protection, customized registration packets, heartbeat packets.