Waveshare Rail-Mount Serial Server, RS232/485/422 to RJ45, TCP/IP to Serial, PoE

WaveshareSKU: RB-Wav-618
Manufacturer #: RS232/485/422 TO POE ETH (B)

Price  :
Sale price ¥4,639

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Stock  :
In stock, 3 units

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  • Rail-Mount Serial Server, RS232/485/422 to RJ45 Ethernet, TCP/IP to Serial by Waveshare
  • With PoE Ethernet Port
  • Aluminum alloy enclosure
  • Built-in resettable fuse and protection diode
  • Power Supply: 6 ~ 36 V DC

The Waveshare Rail-Mount Serial Server, RS232/485/422 to RJ45, TCP/IP to Serial, PoE is an RS232/485/422 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 RS232/485/422 and an Ethernet port (PoE function optional), uses a DC port (outer diameter: 5.5 mm, inner diameter: 21 mm), and screw terminals for power input. The case with rail-mount support is small in size, easy to install, and cost-effective. It is suitable for applications like data acquisition, IoT gateway, safety & security IoT, and intelligent instrument monitoring.

Onboard power supply and signal isolation, can provide stable isolation voltage with high reliability and strong anti-interference. Built-in TVS (transient voltage suppression tube) can effectively suppress the surge voltage and transient peak voltage in the circuit, lightning proof & ESD protection. Built-in resettable fuse and protection diode to ensure a stable output of current and voltage prevents over-current and over-voltage proof, improving shock resistance.

  • 1x Waveshare Rail-Mount Serial Server, RS232/485/422 to RJ45, TCP/IP to Serial, PoE

  • 88.7 x 72.5 x 24.2 mm (L x W x H)
  • Basic Function: Bi-directional transparent data transmission between RS232/485/422 and Ethernet
  • Communication interface: RS232 port x1 | RS485 port x1 | RS422 port x1 | Ethernet port x1
  • Power supply: DC power port, 6 ~ 36V DC screw terminal, or PoE port
  • Isolation Protection: Power isolation, Signal isolation


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


  • 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


  • Ethernet: PoE network port, support IEEE 802.3af standard | 10 / 100M auto-negotiation RJ45 connector, 2 KV surge protection
  • Serial port: Isolated RS232 / 485 / 422


  • Operating temperature: -40 ~ 85 °C
  • Humidity range: 5% ~ 95% relative humidity

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