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The RS-485 to RJ45 Industrial Serial Server (C) provides transparent RS-485 to Ethernet transmission with support for Modbus, MQTT, JSON, and more. It features isolated RS-485 and power, 6–36V screw terminal input, surge-protected Ethernet, and compact rail-mount housing.
This is an RS-485 device data acquisitor / IoT gateway from Waveshare, designed for industrial environments, offering bi-directional transparent data transmission between RS-485 and Ethernet. It combines multiple functions in one, including serial server, Modbus gateway support, MQTT gateway support, RS-485 to JSON and more.
The module features an RS-485 and an Ethernet port, and uses screw terminals for power input. It has a rail-mount case design, is small in size and easy to install.
This is the 'C' version, which accepts a 6-36V power supply and comes with power isolation and signal isolation protection. Power supply not included.
Product Type | Serial server, Modbus Gateway, MQTT Gateway |
Basic Function | Bi-directional transparent data transmission between RS-485 and Ethernet |
Communication interface | RS485 port x 1, Ethernet port x 1 |
Power supply | 6~36V DC screw terminal |
Isolation Protection | Power isolation, Signal isolation |
Ethernet | common network port |
10 / 100M auto-negotiation RJ45 connector, 2 KV surge protection | |
Serial port | Isolated RS485 |
Baud rate | 300 ~ 115200 bps |
Parity bit | none, odd, even, mark, space |
Data bit | 5 ~ 9 bits |
Flow control | N/A |
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 |
Operating temperature | -40℃ ~ 85℃ |
Humidity range | 5% ~ 95% relative humidity |
Dimensions | L × W × H: 87 × 36 × 59 mm |
Power supply not included.