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    Rail-Mount Serial Server, RS485 to WIFI/Ethernet Module, Modbus MQTT Gateway (WS-21968)

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    Rail-Mount Serial Server, RS485 to WIFI/Ethernet Module, Modbus MQTT Gateway (WS-21968)

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    Rail-Mount Serial Server, RS485 to WIFI/Ethernet Module, Modbus MQTT Gateway (WS-21968)

    Rail-Mount Serial Server, RS485 To WIFI/Ethernet Module, Modbus MQTT Gateway

    RS485 To WIFI/Ethernet Module

    Rail-mount RS485 serial server


    Modbus Gateway


    MQTT Gateway

    Features At A Glance

    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 interface RS485, screw terminal
    Power supply 5 ~ 36V DC, screw terminal
    Case PC + ABS, V0 flame retardant grade
    Dimensions L × W × H: 109.66 × 28 × 64.71 mm
    Ethernet 10 / 100M auto-negotiation RJ45 connector
    WIFI 802.11b/g/n compliant
    Serial port RS485 interface (Anti-surge, Lightningproof, Over-current protection)
    Frequency Band 2.412 ~ 2.484 GHz
    Wireless network Station / AP / AP+Station Mode
    Security mechanism WPA-PSK / WPA2-PSK
    Encryption type TKIP / AES
    Transmitting power 802.11b: +19dBm (Max.@11Mbps)
    802.11g: +18dBm (Max.@54Mbps)
    802.11n: +17dBm (Max.@HT20, MCS7); +17dBm (Max.@HT40, MCS7)
    Receiving sensitivity 802.11b: -89dBm (@11Mbps)
    802.11g: -81dBm (@54Mbps)
    802.11n: -73dBm (@HT20, MCS7); -71dBm (@HT40, MCS7)
    Baudrate 300 ~ 460800 bps
    Parity bit none, odd, even, mark, space
    Data bit 5 ~ 9 bits
    Flow control N/A
    Protocol TCP / UDP / ARP / ICMP / DHCP / DNS / HTTP / MQTT
    Configuration host, web browser, serial AT command
    Communication method TCP/IP direct communication, VCOM
    Operating mode Transparent transmission, serial command, HTTPD Client, Modbus TCP to Modbus RTU
    Operating temperature -40℃ ~ 85℃
    Storage temperature -45℃ ~ 125℃
    Humidity range 5% ~ 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

    RS485-TO-WIFI-ETH-details-9.jpg RS485-TO-WIFI-ETH-details-10.jpg
    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
    Resources & Services

    Balenie Obsahuje / Package Content

    1. RS485 TO WIFI/ETH x1
    2. Antenna x1
    Waveshare Electronics

    Specific References

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