RS232/RS485 to RJ45 Ethernet Serial Server

WaveshareSKU: WAV-25108
Sale price £28.50
incl. VAT
excl. VAT
Only 10 units left

Awesome Extras

WaveshareRS485 to WiFi/Ethernet Module (Modbus/MQTT Gateway)
Sale price £31.90 incl. VAT excl. VAT
WaveshareRS232/RS485 to PoE Ethernet Serial Server
Sale price £32.20 incl. VAT excl. VAT

This ethernet serial server has dual serial ports with 1-channel RS232 and 1-channel RS485, that is capable of operating simultaneously without interference, all through a single ethernet connection. It packs multiple functionalities in one device, serving as a serial server, Modbus gateway, MQTT gateway, and converter from RS232 and RS485 to JSON, making it a versatile choice for various projects.

Powering the device is flexible, with two methods available: a DC port (outer diameter: 5.5mm, inner diameter: 2.1mm) and a screw terminal. The compact case includes rail-mount support for easy installation. This is ideal for projects such as data acquisition, IoT gateway functions, and safety & security IoT.

We also have the PoE ethernet version in our store

Note: The power supply is not included, it is recommended to use with a 12V Power Adapter


  • Industrial Isolation
  • Modbus Gateway
  • Dual Serial Ports
  • Multi Power Supply Methods
  • RJ45 Ethernet
  • Ethernet Port Cascade
  • Rail-Mount 

What's on Board


Product Type Serial server, Modbus Gateway, MQTT Gateway
Basic Function Bi-directional transparent data transmission between RS232 and RS485 to Ethernet
Communication Interface 1x RS232 port, 1x RS485 port, 2x Ethernet port
Power Supply DC 5.5 power port, 6 ~ 45V DC screw terminal
Isolation Protection Power isolation, Signal isolation
Ethernet RJ45
10 / 100M auto-negotiation RJ45 connector, 2 KV surge protection
Serial Port Isolated RS232 and RS485 (the 2 channels can receive and transmit independently at the same time)
Serial Specifications
Baudrate 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
Environment Requirements
Operating Temperature -40℃ ~ 85℃
Humidity Range 5% ~ 95% relative humidity
Dimensions L x W x H: 78.0 x 72.5 x 24.2 mm



Package Contents

  • 1x RS232/RS485 to RJ45 Ethernet Server

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