Features: An RS485 device data collector and IoT gateway designed for industrial environment applications, integrating serial server, Modbus gateway, MQTT gateway, and RS485 to JSON functions. Equipped with RS485 and Ethernet interfaces, terminal-type power supply connection, supports 9–24V wide voltage DC input, rail-mounted flame-retardant housing, compact size, easy installation, suitable for data acquisition, IoT gateway, security system networking, and intelligent instrument monitoring. Specifications: Communication interface: RS485, terminal type, supports up to 32 slave devices Power supply: Terminal type, 9–24V DC Product dimensions (L x W x H): 87 x 36 x 59 mm Ethernet: 10/100M adaptive RJ45, with 2KV surge protection Serial port: 1 x RS485 (RXD, TXD, GND) Baud rate: 300–115200 bps Parity: None, Odd, Even, Mark, Space Data bits: 5–9 bits Flow control: None Protocols: Ethernet, IP, TCP, UDP, HTTP, ICMP, DHCP, DNS Configuration methods: PC software, web browser, device management library Communication modes: TCP/IP direct communication, virtual serial port mode Working modes: TCP server, TCP client (supports simultaneous server and client), UDP, UDP multicast Operating temperature: -40°C to 85°C Storage temperature: -45°C to 165°C Humidity range: 5%–95% relative humidity, non-condensing Material: ABS Color: White Package Contents: 1 x RS485 Serial Server Note: Other items not included. Note: Lighting and display differences may cause slight color variation between image and actual item. Measurement tolerance: ±1–3 cm.