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) or use the form to get further details.

Updated: 2011-07-24 — 6:04 PM

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