GSM500 - GD

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Universal GSM gateways compatible with any alarm system.

GSM500 GD is a device that, connected to a fixed telephone or to the PSTN input terminals of a PABX or autodialer, allows you to make and receive calls over the GSM network. For correct operation, a GSM SIM card is required.

Different versions are available:

GSM500 - GD Basic (5IG-160): comes with magnet-base antenna amd extension cable (L= 2 m)

GSM500 - GD (5IG-161): comes with magnet-base antenna amd extension cable (L= 2 m), built-in backup batteries and external adapter.

5IG-160; 5IG-161


  • PSTN-line cost reduction
  • High transmission speed
  • Low consumption
  • Easy installation by connectors and/or terminal blocks
  • Local programming via DTMF
  • Remote programming via SMS
  • Caller ID visualization
  • Battery check (only available on model GD)
  • SMS notifications (low-battery, dead battery, replaced battery,external power failure/restore, GSM network restore)
  • Roaming management feature
  • Remote control of GSM signal strenght
  • Automatic converter of the dialed number
  • Programmable telephone line tension
  • Customizable reception and transmission levels
  • Customizable timeout before dialing
  • Automatic country setting
  • Automatic reboot under prolonged GSM signal absence
  • Remote reset
  • Remote firmware update
  • Programmable with e-stant software
Hardware and Software design and development carried out at the Esse-ti Research Center. 100% made in Italy.


  • GSM/UMTS signal indicator LED
  • Status indicator LED
  • Line status indicator LED / Data transmission indicator LED (
  • Power supply status indicator LED
  • Quad Band GSM module
  • 2 W transmission power
  • 12 Vdc power supply input
  • 230 Vac external adapter input
  • External antenna (cable length = 2 m)
  • External adapter (230 Vac 50 Hz input; 12 Vdc 500 mA output; CE mark; only available on model GD)


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