GSM Adapter Mini

comparison of products printable version

  • Product ID
  • Package size
    230x160x35 mm
  • Package weight
    0.27 kg


The adapter enables installing an alarm system where no landline is available, but reporting to a monitoring station is required. A general emergency signaling device for elderly people and people in need of nursing, activated by simply picking up the receiver of the connected landline phone device.

Main features:

  • Telephone line emulator
  • PSTN line management
  • BELL103 / V.21 modem simulation
  • Programmable through USB

Technical data:

  • Transmission frequency:
    GSM 900/1800 MHz or 
    GSM 850/1900 MHz
  • GSM phone type:
    Simcom SIM340
  • Supply voltage:
    9-24 VDC
  • Current consumption:
    Nominal: 100mA
    Maximum: 500mA
  • Operating temperature:
    -20°C - +70°C
  • Dimensions:
    84 x 72 x 32mm
  • Weight: 200g

Characteristics of the GSM Adapter Mini:

  • Adaption to GSM network of alarm control panels equipped with PSTN phone line communicator
  • Forwards Contact ID communication of the connected alarm control panel to remote monitoring station
  • PSTN line supervision: switches to GSM transmission (as redundancy line) in case of PSTN line sabotage or failure
  • Direct GSM mode: forwards all events through the GSM network by default
  • SMS sending to users from Contact-ID event codes reported by the connected alarm control panel
  • Forwarding of incoming SMS messages (e.g. balance information of prepay SIM card)
  • Remote programming of the connected alarm control panel (Paradox, DSC) via CSD call using BELL103/V.21 modem simulation
  • Make and receive calls over the GSM network by connecting a landline phone device
  • Phone number restriction for incoming calls
  • Automatic dialing option: dials a configurable number automatically when picking up the receiver of the connected landline phone device

Application area:

  • The adapter enables installing an alarm system where no landline is available, but reporting to a monitoring station is required.
  • A general emergency signaling device for elderly people, and for those who need medical attendance by using the connectable landline phone device.

Technical specification

  • Transmission channel
    GSM / PSTN
  • Frequency band
    850/900/1800/1900 MHz
  • Operating temperature
    -20 ºC - +70 ºC
  • Supply voltage
    9-30 VAC/DC
  • Current consumption (maximum)
    500 mA @ 12 VDC
  • Current consumption (nominal)
    100 mA @ 12 VDC
  • Casing
  • Terminal connector design
  • Dimensions
    84x72x32 mm
  • Weight
    200 g


  • Contact inputs


  • SMS sending
  • DTMF-based reporting to monitoring station

Supported protocols

  • SIA DC-05 (DTMF) protocol


  • Programming method
  • Programming software


  • User phone numbers for forwarding incoming SMS messages
  • User phone numbers for reporting

Other functions

  • Automatic dialing (emergency call)
  • Voice dialer adaptation
  • Filtering of Contact ID event codes
  • Caller identification
  • PSTN line supervision
  • Remote programming of alarm control panels through GSM data call (CSD / BELL103)
  • Sending SMS generated from Contact ID event codes to user phone numbers
  • Phone line emulation
  • Adaptation of alarm control panels to mobile network
  1. When the call is made from the device, the phone does not display the caller’s number. Why?

    You have to enable to send the caller ID of the inserted SIM card by the GSM provider. Put the SIM card into a mobile phone, and call the GSM provider customer service, in the menu, you will be able to enable that feature. (Even though the caller ID shows up when you make a call with a mobile phone, it will not show up when you use the device until you enable this feature through the GSM provider)

  2. The GSM Adapter Mini does not send an SMS (text) in the case of an alarm. Why?

    Please check that by the User 1 and User 2 phone number there is listed a phone number that should be notified in case of an alarm. Check that by the list of the SMS text you gave the correct event codes. The alarm installer installation book includes the event codes. In the list, the event codes are in  4 hexadecimal digits each, where the first digit represents the new event ("1") and the restoration event ("3").

    When entering the event code with using the "*" you can also specify the event group, so when placing the "*’"in the code, any random hexadecimal digit is received from the control panel and the rest of the code is the same as the other element of the manufacturer, the event will be transmitted. When providing the ADEMCO-Express code you have to put two zero next to the code. For example: in the case of an alarm you have to put 0031 code into the GSM Adapter Mini programming software.

  3. It is not possible to read or upload the setting to the device with the programming software. The connection does not get through, or sometimes the downloading stops.

    Please power up the module first, after that connect it to the computer.

  4. After installing the programmer software there is an error message saying that the DLL file is missing and it can not start.

    Some operating systems create a missing DLL file after connecting to the module. Connect the module through a USB to the computer, and after this start the programming software again.

  5. The module sends a long line of continuous letter / sequence SMS message to the SMS forwarding featured phone number. What is the reason for this?

    This phenomenon happens when you do not receive a regular SMS (text) to the phone module, but some kind of a multimedia message (MMS photo) or some other encoded message (for example, encoded Cyrillic letters with accents or other capitalization). An industrial phone module is not able to handle this, that's why the mentioned letters/sequences are converted into Unicode form and are forwarded to your phone (depending on the size of the message 1 MMS can be received in 3 or 4 SMSs). Please note that in this case there is no problem with the device itself, but this phenomenon is caused by the above-described reason. If this occurs regularly, there is a good chance that it is an advertising / marketing message sent by the service provider, which can only be stopped by either asking the service-provider not to send such messages to this given phone number or by turning off the message forwarding function (in the settings: delete the SMS forwarding phone number), if this function is not absolutely necessary.

Message to the customer service



  • GSM Adapter Mini v2-13 Manual EN 25-10-2016
    2016.10.25 942.23 KB Download
  • GSM Adapter Mini Programming software v1-23 (Signed)
    2015.11.18 6.39 MB Download
  • GSM Adapter Mini CE
    2011.12.04 818.83 KB Download
  • GSM Adapter Mini Leaflet EN
    2011.12.04 1.61 MB Download
  • GSM Adapter Mini firmware v2-19-20171002095330
    2017.10.02 225.60 KB Download
  • Firmware upgrade instructions
    2014.09.03 1.91 KB Download
  • Release notes
    2017.10.02 2.43 KB Download
  • BootloaderX22 firmware upgrade instructions (EN)
    2012.08.17 1.86 KB Download
  • BootloaderX22 EN firmware upgrade utility
    2012.08.17 1.59 MB Download
no uploaded file

Product updates