Overview
This is a RS485 device data acquisitor / IoT gateway designed for industrial environment. It combines multi functions in one, including serial server, Modbus gateway, MQTT gateway, RS485 to JSON, etc. The module features RS485 and Ethernet port(POE function), uses screw terminals for power input. Rail-mount flame-retardant case design, small in size, easy to install. It is suitable for applications like data acquisition, IoT gateway, safety & security IoT, and intelligent instrument monitoring.

Specifications
1. Features
Product Type：Serial server, Modbus Gateway, MQTT Gateway
Basic Function：Bi-directional transparent data transmission between RS485 and Ethernet
Communication interface：RS485 port x 1, Ethernet port x 1
Power supply：6 ~ 36V DC screw terminal, or PoE port
Isolation Protection：Power isolation, Signal isolation

2. Communication
Ethernet：PoE network port, support IEEE 802.3af standard, 10 / 100M auto-negotiation RJ45 connector, 2 KV surge protection
Serial port：Isolated RS485

3. Serial specification
Baudrate：300 ~ 115200 bps
Parity bit：none, odd, even, mark, space
Data bit：5 ~ 9 bits
Flow control：N/A

4. Software
Protocol：ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS
Configuration：host, web browser, device management functions library
Communication method：TCP/IP direct communication, VCOM
Operating mode：TCP server, TCP client (coexisting with TCP server), UDP, UDP multicast

5. Environment requirement
Operating temperature：-40℃ ~ 85℃
Storage temperature：-45℃ ~ 125℃
Humidity range：5% ~ 95% relative humidity
Dimensions：L × W × H: 87 × 36 × 59 mm

User Manual and Development Resources
https://www.waveshare.com/wiki/RS485_TO_ETH_(B)?

Package Content
RS485 TO POE ETH (B) Module x1

Graphics Card Interface	PCI Express
Memory Slots Available	2
Number of Ports	2
Platform	Web Browser

RS485 to Ethernet Converter Industrial RS485 Serial Server TCP/IP to Serial Module Modbus MQTT Gateway, Support PoE Ethernet Port Power Supply, with Power and Signal Isolation Protection, Rail-Mount

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