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  1. ChuckSiekert

    alarm modem interface

    Sensaphone has a couple of units that do this. The 2000 and 3000. The 2000 is monitoring only. The 3000 is control also. The 2000 is reasonably priced and they claim it will E-mail. I have their config software and a copy of the manual somewhere on or near my desk. They have a web page.
  2. ChuckSiekert

    NO more PLC - looking for "C++" prog. controller!

    The only 'C' programmable PLC I've heard of is the New AB<br> Rolls Royce. Fifteen years ago we built our own 'PLCs' and programmed them with 'C'. I've also used Grayhill's Brainboard with the 68HC11 CPU running Avocet 'C' on it. There are many SBC's with X86/pentiums which will run 'C' I've...
  3. ChuckSiekert

    Intrinsically safe

    Class 1 group D. I need it for switching 110 v for digital and 4-40 ma for PLC. I would like to get by with a zener type and relays for the 110 v.
  4. ChuckSiekert

    Intrinsically Safe barriers

    I am looking for design for Intrinsically safe barriers/relays
  5. ChuckSiekert

    Intrinsically safe

    I'm looking for design of intrinsically safe circuits
  6. ChuckSiekert

    Intrinsically safe

    I am looking for designs for intrinsically safe relays and 4-20 ma barriers
  7. ChuckSiekert

    intrinsically safe devices

    I am looking for ISR designs and 4-20ma barrier designs

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