Rail-Mount Serial Server, RS232/485/422 to RJ45 Ethernet Module, TCP/IP to serial, With POE Function

SKU: 23626
Part Number: RS232/485/422 TO POE ETH (B)
Brand: Waveshare


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Rail-Mount Serial Server, RS232/485/422 to RJ45 Ethernet Module, TCP/IP to serial, With POE Function
RS232 / 485 / 422 To RJ45 Ethernet Module

Industrial Isolated, Rail-mount RS232/485/422 Serial Server

Features at a glance

This is a 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 Ethernet port with PoE function, uses DC port (outer diameter: 5.5mm, inner diameter: 21mm) and screw terminals for power input. The case with rail-mount support, small in size, easy to install, cost-effective. It is suitable for applications like data acquisition, IoT gateway, safety & security IoT, and intelligent instrument monitoring...

Product RS485 TO ETH (B) RS485 TO POE ETH (B) RS232/485/422 TO POE ETH (B)
Product Type Serial server, Modbus Gateway, MQTT Gateway
Basic Function Bi-directional transparent data transmission between RS485 and Ethernet Bi-directional transparent data transmission between RS232/485/422 and Ethernet
Communication interface RS485 port × 1, Ethernet port × 1 RS232 port × 1; RS485 port × 1; RS422 port × 1; Ethernet port × 1
Power supply 9 ~ 24V DC screw terminal 6 ~ 36V DC screw terminal, or PoE port DC power port, 6 ~ 36V DC screw terminal, or PoE port
Isolation Protection N/C Power isolation, Signal isolation
Ethernet common network port PoE network port, support IEEE 802.3af standard
10 / 100M auto-negotiation RJ45 connector, 2 KV surge protection
Serial port RS485 Isolated RS485 Isolated RS232/485/422
Serial specification
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
Environment requirement
Operating temperature -40℃ ~ 85℃
Humidity range 5% ~ 95% relative humidity
Dimensions L × W × H: 87 × 36 × 59 mm L × W × H: 88.7 × 72.5 × 24.2 mm

Primary function

bi-directional transparent data transmission between RS232/485/422 and Ethernet

Three Different Interfaces

Onboard RS232 / 485 / 422 Interfaces, Suitable For More Application Scenarios

Ethernet Port To RS232/485/422

The Ethernet port can send data to three serial ports at the same time

RS232 / 485 / 422 To Ethernet Port

Only one of the RS232, RS485, and RS422 can send data to the Ethernet port at the same time

Three Methods For Power Supply

Support PoE Ethernet port power supply, Suitable for IEEE 802.3af PoE standard
Support Screw Terminal and DC Power Port for Power Supply, DC 6~36V Wide Voltage Range Input

Rail-mount support

easy to combine multi rail-mounted serial server together, more freely

Modbus gateway support

suitable for Modbus networking upgrade, Can Be Used With specific Configuration Software

Multi communication modes

supports TCP server / TCP client / UDP mode / UDP multicast

MQTT/JSON to Modbus

more flexible conversion between different protocols

When used as MQTT gateway, the devices can upload serial data to MQTT server by MQTT protocol through transparent transmission, supported servers including Baidu Cloud MQTT, Alibaba Cloud MQTT, China Mobile OneNet, etc. The acquired Modbus RTU or non-standard serial data can be parsed into JSON format and packaged into MQTTdata packet for uploading.

When used as JSON data acquisition gateway, the devices can be connected to data acquisition instruments through RS485 connection, then acquire data automatically, convert the data into JSON format, and finally post it to server. The acquired data supports Modbus RTU 645 instrument 97 version, 645 instrument 07 version, as well as sorts of non-standard RS485 protocols. The uploaded data format can be configured via host, and the JSON upload protocol can be MQTT protocol, HTTP POST protocol, HTTP GET protocol, and so on.

Multi hosts roll-polling support

different network devices will be identified and responsed respectively,
no more crosstalk issue while communicating with multi network devices

User-defined heartbeat/registration packet

easy for cloud communication and device identification

NTP protocol support

getting network time info for serial output or data upload

Multi configuration methods

supports Web browser configuration, obtaining dynamic IP via DHCP,
DNS protocol connected domain server address

Multiple Protection, Safe And Stable

Onboard power supply and signal isolation, it 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, lightningproof & ESD protection. Built-in resettable fuse and protection diode to ensure stable output of current and voltage, prevents over-current and over-voltage proof, improve shock resistance

Aluminium Alloy Enclosure

Aluminium Alloy Enclosure With Sand Blasting And Anodic Oxidation
Solid And Durable, Fashion And Good Hand Feeling

Interface introduction
Outline dimensions
Support Batch Customization

Support software and hardware customization
Including hardware interface, LOGO, label, case and web page, etc.

Selection guide
RJ45 Ethernet 10/100Mbps auto-negotiation
POE - supported - supported -
WIFI interface - 802.11b/g/n 2.4GHz -
Type RS485 RS232 RS232/485/422 RS485 RS232+RS485 (allows concurrent operation)
Baudrate 600bps~230.4Kbps 300bps ~ 115.2Kbps 300bps ~ 460.8Kbps 600bps~230.4Kbps
Hardware flow NOT supported supported
Data bit 5, 6, 7, 8
Stop bit 1, 2
Parity bit None, Even, Odd, Space, Mark
Interface protection
Power supply reverse-proof, ESD protection, anti-surge
Ethernet 1.5KV electromagnetic isolation
RS485 2KV ESD protection, 2.2KΩ pull up/down registers 2KV anti-surge 600W anti-surge, lightningproof, anti-electrostatic 15KV anti-surge, lightningproof, over-current protection 2KV ESD protection, 2.2KΩ pull up/down registers
Other - - Power isolation, signal isolation protection - lightningproof, over-current protection
Operating mode
Type TCP Server, TCP Client, UDP Server, UDP Client, etc.
TCP Server customizable 1~16 Clients supports 30 Clients supports 24 Clients supports 2-ch Socket, 8 Clients per ch
Features customized heartbeat packets, customized registration packets, customized webpage, RFC2217-like protocol, KeepAlive, timeout auto reboot, short connection, firmware upgrade via network
- Modbus gateway, MQTT/JSON to Modbus Modbus gateway, MQTT, HTTP Client Modbus gateway, Websocket (webpage to serial)
Configuration Built-in webpage, Host computer config software, Serial commands
Power supply 5~7V 9~24V 6~36V 5~36V
Operating current [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected]
Operating temp. -25~75℃  -40~85℃ 

Weight: 0.148 kg

Quick Overview

The power supply of this product is not included, it is recommended to used with a 12V Industrial DIN-Rail Power Supply
  1. RS232/485/422 TO POE ETH (B) x1