3 Replies Latest reply: Jun 2, 2013 6:56 AM by Harald Naumann RSS

Designing an M2M terminal

Newbie

I am trying to get an M2M terminal built and would like to find a good PCB designer who has worked with telemetry devices to shorten the whole process. Can anyone suggest any engineers or good design companies ?

  • Re: Designing an M2M terminal
    Javier G. Apprentice

    Hi David, I've sent you a PM with some recommendations. Good luck!

  • Re: Designing an M2M terminal
    Curtis Govan Expert

    Hi David,

     

    Where are you based?  I presume you want someone that's close to you, right?

     

    Regards,

    Curtis

  • Re: Designing an M2M terminal
    Harald Naumann Expert

    Hi David, if you like you can email me. A part of my references and know-how is public here http://www.gsm-module.de

     

    Industrial GSM modem with watchdog

    GSM modem front view

    GSM modem F 300x161 GSM modem with watchdog

    GSM modem front

    • RS232 on D-SUB9
    • Three status LED

    GSM modem back view

    GSM modem b 300x131 GSM modem with watchdog
    GSM modem back


    • Antenna interface SMA/F
    • SIM card holder push / push
    • I/O interface with 6 pins (functions differs on the version of the GSM modem)
    • Power connector with 4 pins, 8 to 36 DC, inverse voltage protection
    • Back up battery (option)
    • Python interpreter
    • Operation as standard AT modem with watchdog and or battery
    • Operation as low cost PLC (programmable logic controller) replacement and program code on licence free Python language

    GSM modem general

    • Temperature range: -25 to 70 degree Celsius
    • Enclosure: 57 x 87 x 27 (mm), aluminium
    • EN 55011 class A, EN 61000-6-1, IP20
    • Quadband GSM / GPRS 850/900/1800/1900 GPRS class 10
    • Embedded TCP/IP, UDP/IP, FTP, SMTP
    • SMS, data, fax, DTMF
    • Several types of hardware watchdog

    GSM modem unique features

    • Reboot each 4 to 24 hours (by jumper)
    • Watch dog of the Python code by external micro controller ( by jumper)
    • Reboot of the GSM modem by command on RS232 ( by jumper)
    • Emergency battery inside (hardware option)
    • Secured against vibration by snap in connectors
    • Ready to use Python programs for different tasks
    • Free of charge tools to write and upload own Python programs
    • Local technical trainings for coding in Python (on request)
    • Test server to upload data logged or collected by GPRS (HTML, TCP/IP)

    GSM modem block diagram

    GSM modem with watchdog1 221x300 GSM modem with watchdogGSM modem with watchdog and battery

    GSM modem family

    GSM modem standard

    • Digital input with optical coupler 0 to 28  VDC =4
    • Output relay 1 A , 60 VDC
    • I2C bus for external extension= No
    • Back up battery = No

    GSM modem with battery

    • Digital input with optical coupler 0 to 28 VDC =4
    • Output relay 1 A , 60 VDC
    • I2C bus for external extension= No
    • Back up battery = No

    GSM modem with I2C bus and no battery

    • Digital input with optical coupler 0 to 28 VDC =2
    • Output relay 1 A , 60 VDC
    • I2C bus for external extension= Yes (1)
    • Back up battery = No

    GSM modem with I2C bus and battery

    • Digital input with optical coupler 0 to 28 VDC =2
    • Output relay 1 A , 60 VDC
    • I2C bus for external extension= Yes (1)
    • Back up battery = Yes

    GSM modem application examples

    Burglar alarm, monitoring of server room, standard AT modem with watchdog, operating hour timer of machines, remote control, remote monitoring, fault detector, data logger … and a lot of more

    If you have interest in this GSM modem made by a business friend of mine then just drop an email to harald.naumann (at) gsm-modem.de