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RS485 to WIFI/Ethernet Module Rail Mount Serial Server Modbus MQTT Gateway


Date:2022-06-22 15:39
Part Number:
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Rail-Mount Serial Server, RS485 to WIFI/Ethernet Module, Modbus MQTT Gateway

It combines multi functions in one, including serial server, Modbus gateway, MQTT gateway, RS485 to HTTPD Client, etc. 


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 HTTPD Client, etc. With RS485, WIFI and Ethernet ports, the module can realize functions such as serial to WIFI, serial to Ethernet, Ethernet to WIFI and so on. Using screw terminals for power input, it supports 5~36V wide range power supply. Rail-mount V0 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...


Communication interfaceRS485, screw terminal
Power supply5 ~ 36V DC, screw terminal
CasePC + ABS, V0 flame retardant grade
DimensionsL × W × H: 109.66 × 28 × 64.71 mm
Ethernet10 / 100M auto-negotiation RJ45 connector
WIFI802.11b/g/n compliant
Serial portRS485 interface (Anti-surge, Lightningproof, Over-current protection)
Frequency Band2.412 ~ 2.484 GHz
Wireless networkStation / AP / AP+Station Mode
Security mechanismWPA-PSK / WPA2-PSK
Encryption typeTKIP / AES
Transmitting power802.11b: +19dBm (Max.@11Mbps)
802.11g: +18dBm (Max.@54Mbps)
802.11n: +17dBm (Max.@HT20, MCS7); +17dBm (Max.@HT40, MCS7)
Receiving sensitivity802.11b: -89dBm (@11Mbps)
802.11g: -81dBm (@54Mbps)
802.11n: -73dBm (@HT20, MCS7); -71dBm (@HT40, MCS7)
Baudrate300 ~ 460800 bps
Parity bitnone, odd, even, mark, space
Data bit5 ~ 9 bits
Flow controlN/A
Configurationhost, web browser, serial AT command
Communication methodTCP/IP direct communication, VCOM
Operating modeTransparent transmission, serial command, HTTPD Client, Modbus TCP to Modbus RTU
Operating temperature-40℃ ~ 85℃
Storage temperature-45℃ ~ 125℃
Humidity range5% ~ 95% relative humidity

Primary Function

Support RS485 To WIFI, RS485 To Ethernet, Ethernet To WIFI, Etc.

Rail-Mount Serial Server

Industrial Rail-Mount Support, Easy To Install, Compact Size, Cost-Effective

Function Block Diagram
Support Transparent Transmission Mode

Supports TCP Server / TCP Client / UDP Server / UDP Client

Serial Command Mode

The user sends data to the server according to the protocol
Send data to different servers without restarting

Support HTTPD Client Mode

After the user has set the HTTP header through AT commands or web page, the module can send data to the HTTP server, or obtain data from the HTTP server

Support MQTT Function

Devices can subscribe to other MQTT client messages, and can publish topic information to the server. Supports subscription of 6 messages and publication of 6 topics, wider range of use and more applicable scenarios. Users can view device-related information through terminal devices or cloud platforms

Modbus Gateway Support

Support Modbus TCP And Modbus RTU Interconversion Mode

AT Command Mode

The user can query the current status of the module, or set related parameters, by sending AT commands

Multi Configuration Methods
Supports muliti configuration methods such as hosts, Web Browser and serial port Configuration

Socket Distribution Protocol
In the transparent transmission mode, the serial device can send data to the specified Socket link; the network data of each Socket is sent to the serial device through the serial port.

Hardware Protection
ESD Level 4 Static Protection, Level 3 Surge Protection, EFT Level 3 Electrical Fast Transient/Burst Protection.

Customized registration packets, heartbeat packets
The registration package is used to identify the device information to the server, so that the server can identify the device.
Interface Introduction
Outline Dimensions