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    AJMRTC Elfin-EW40B-0 Gateway, RS232 to Wi-Fi & BLE Serial Server with External Antenna, STA/AP/AP+STA Mode, Modbus RTU/TCP, Industrial IoT Data Transmission, Server + Cable Included

    • - 2.4G Wi-Fi + BLE 5.0 dual wireless, converts RS232 serial signal to wireless network for IoT
    • - Supports STA / AP / AP+STA three working modes to fit different networking requirements
    • - Compatible with Modbus RTU and Modbus TCP, easy integration with industrial PLC and sensors
    • - External antenna design for stronger signal, stable communication in complex industrial environments
    • - Comes with gateway and matched cable, supports web configuration and OTA firmware upgrade
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    Overview
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    AJMRTC Elfin-EW40B-0 serial server is an industrial RS232 to Wi-Fi and BLE gateway. It converts traditional RS232 serial devices into wireless IoT terminals, supporting STA, AP and AP+STA mixed modes. It works with Modbus RTU and Modbus TCP protocols, widely used for PLC, meters and serial sensor remote data acquisition. Equipped with an external antenna for better signal coverage and anti-interference performance. It supports TCP/UDP/MQTT/HTTP and wireless OTA upgrade, configured via web page or PC tool. Package includes gateway and matching cable, ready for industrial automation, smart monitoring and IoT transformation projects.


    Specifications

    1. Brand: AJMRTC
    2. Model: Elfin-EW40B-0
    3. Interface: RS232
    4. Wireless: Wi-Fi 802.11 b/g/n 2.4GHz + BLE 5.0
    5. Wi-Fi Mode: STA / AP / AP+STA
    6. Supported Protocol: Modbus RTU, Modbus TCP, TCP, UDP, MQTT, HTTP
    7. Antenna: External SMA Antenna
    8. Baud Rate: 300~230400 bps
    9. Power Supply: 5~36V DC
    10. Package Content: 1 x Elfin-EW40B-0 Gateway, 1 x Matching Cable
    11. Application: Industrial Automation, PLC, Sensor, IoT Remote Monitoring


    Warranty & Returns

    Warranty, Returns, And Additional Information

    Warranty

    • Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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