Cellular Modems

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  • Model:D223
    The GSM/GPRS/3G/4G IOT M2M Modem DTU D223 is a powerful and programmable multi-purpose wireless cellular modem and data transfer unit (DTU). It provides a secure, high speed, reliable wireless data transmission between com port and internet connection for customers over GPRS/3G/4G wireless cellular network. Also, it can be used as SMS modem and Modbus RTU to Modbus TCP converter.

  • 1. 1x RS232, 1x RS485 (Or RS422), 5x I/O.
    2. Transparent data transfer, with built in standard TCP/IP stack.
    3. Multi data centers (up to 5) and TCP server, able to access center with domain name and IP address.
    4. TCP heartbeat link detection, keep device always online.
    5. APN/VPDN
    6. SMS backup, data will be transferred by SMS when TCP/UDP disconnects.
    7. Rich online and offline trigger modes: SMB, Ring, Data (Sent through serial port).
    8. Hardware and software auto inspection technology, enable operation fault auto repairing

  • 1. Support NB-IoT cellular network and EMTC(Option)
    2. 1x RS232, 1x RS485 (Or RS422), 5x I/O.
    3. Transparent data transfer, with built in standard UDP/IP and TCP/IP stack(LTE CAT M1 version)
    4. Multi data centers (up to 5) , able to access center with domain name and IP address.
    5. Support heartbeat link detection, keep device always online.
    6. Hardware and software auto inspection technology, enable operation fault auto repairing.

  • 1. Industrial design, suitable for harsh industrial environment
    2. Support CSD, SMS and Dial up functions.
    2. Support both English and Chinese SMS
    3. Support APN/VPDN
    4. Support standard AT Command
    5. Support RS232, also support RS485, or RS422

    Note:TM110 is discontinued and replaced by TD210 series modems.

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