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Embedded Communication Controller with 3 Ports.  I-7523D has Display. Supports operating temperatures between -25 to 75°C.


Embedded Communication Controller with 3 Ports. I-7523D has Display. Supports operating temperatures between -25 to 75°C.

  Price:  $379.00  

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Intelligent Communication Controller with one RS-485 port, two RS-232 ports, and one RS-232/RS/485 port


  • CPU: 80188
  • 20MHz; for I-7521/7522/7523
  • 40MHz; for I-7524/7527
  • SRAM:
    • 128K bytes for I-7521/7522/7523
    • 256K bytes for I-7524/7527
  • Flash ROM:
    • 256K bytes for I-7521/7522/7523
    • 512K bytes for I-7524/7527
  • EEPROM: 2048 bytes
  • Communication speed: 115.2K BPS max.
  • RS-232 interface connector: Male DB-9
  • RS-485 interface connector for:
    • I-7521/7522/7523:
      13-pin screw terminal block ( accepts 16~26 AWG wires )
  • 3.81mm pitch
  • RS-485 interface connector for:
    • I-7524/7527:
      14-pin screw terminal block ( accepts 16~22 AWG wires ); 3.5mm pitch
  • D/I: 3.5V~30V
  • D/O: 150mA/30V
  • Accessories: One download cable, one mini screw driver
  • Environment:
    • Operating temperature: -25°C to +75°C
    • Storage temperature: -40°C to +80°C
  • Command Sets
    • Note3: RS-485 ( D2+, D2- ; self-tuner inside)
    • 3000V isolation
    • Note4: RS-232 (TXD, RXD, RTS, CTS )
    • Note5: RS-232 ( TXD, RXD )
    • Dimensions: 123mm x 72mm x 33mm
    • Power requirement: Unregulated 10~30 VDC with protection from power reversals
    • Power consumption:
    • 2W (without display)
    • 3W (with display)
    • Selection Guide
  • Din Rail Mount

    Model Number I-7521/7521D
    I-7522/7522D I-7523/7523D I-7524/7524D I-7527/7527D
    CPU (80188) 40M 40M 40M 40M 40M
    SRAM 156k 156k 156k 156k 156k
    Flash 256k 256k 256k 256k 256k
    COM 1 Port
    Program download
    COM 2 Port RS-485(Note3)
    RS-485(Note3) RS-485(Note3) RS-485(Note3) RS-485(Note3)
    COM 3 Port - RS-422(Note4)
    RS-232(Note4) RS-232(Note4) RS-232(Note5)
    COM 4 Port - - RS-232(Note5) RS-232(Note4) RS-232(Note5)
    COM 5 Port - - - RS-232(Note4) RS-232(Note5)
    COM 6 Port - - - - RS-232(Note5)
    COM 7 Port - - - - RS-232(Note5)
    COM 8 Port - - - - RS-232(Note5)
    D/O 3 1 - - -
    D/I 3 3 2    
    User defined I/O 3 - - - -
    Real Time Clock - - - Y Y
    Embedded O.S. MiniOS7 MiniOS7 MiniOS7 MiniOS7 MiniOS7
    Note1: RS-232 /RS-485
    • RS-485: D2+, D2-; Self-tuner inside
    • RS-232: TXD, RXD, RTS, CTS
    DB-9 male connector

    Note2: RS-232 / RS-485
    • RS-485: D1+, D1-; Self-tuner inside
    • RS-232: TXD, RXD, RTS, CTS

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