IoT M2M blog

The home of free hints and tips about wireless IoT / M2M

SMS modem

Secure SMS modem

SMS modem front view

GSM modem front

GSM modem front

  • RS232 on D-SUB9
  • Three status LED

SMS modem back view

GSM modem back

GSM modem back

SMS 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

SMS 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)

SMS modem functions examples

  • SMS by AT command on RS232
  • SMS by ASCII string on RS232
  • SMS by changing input channel (high active, low active, toggle)
  • SMS by timer event and transmitting of status
  • Trigger of relay by incoming SMS (for gate opener)
  • Tons of other DTMF, voice call or GPRS triggered functions

If you have interest in this SMS modem, then just drop an email to harald.naumann (at) gsm-modem.de or use the form to get further details.

Updated: 2011-07-24 — 6:04 PM

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