Industrial GSM communication device


  • Dual-band GSM/GPRS terminal (900/1800 MHz)
  • uBlox SARA-G340 module
  • RS232 DCE serial interface
  • LED power supply indication
  • LED indication of GSM network
  • Switch ON/OFF using DTR signal
  • SMA 50Ω antenna connector
  • Power supply from 8 to 30V DC
  • Desktop aluminum case
  • Mounting option on 35mm DIN rail


DECODE GT340 is compact dual-band GSM/GPRS terminal which enables easy connection of the user devices and PCs to the GSM network. It is based on uBlox SARA-G340 module with integrated TCP/IP stack. The micro SIM card is placed through the hole on the front panel of the device. Communication connector is standard DB9 female connector with RS232 DCE interface. The antenna connects to the female SMA 50Ω connector. LEDs on the front panel indicate the presence of the power supply voltage and activity of the GSM network. The device is powered by DC voltage in the range of 8V to 30V. Device is delivered in desktop case, but by adding an optional holder, it can be mounted on 35mm DIN rail.


DECODE GT340 terminal enables the communication of electronic devices and systems over GSM network using GPRS, CSD and SMS services. It is specially designed for remote monitoring and control of industrial processes, security systems, POS terminals, level readers (gas, water, electricity...).
Typical applications include:

  • remote PLCs reading and control
  • remote process monitoring
  • paying at POS (point-of-sale) terminals
  • vending machine monitoring
  • traffic management
  • device service and maintenance
  • alarm systems


GSMuBlox SARA-G340,
Dual-Band GSM 900/1800MHz
Compliant with 3GPP GSM Phase 2/2+ standard
Multiplexed RS232 interface, 3GPP TS 27.010
AT command interface, 3GPP TS 27.007
Power saving
GPRSMulti-slot Class 10 (uplink 42.8Kbps, downlink 85.6 Kbps)
Coding scheme: CS-1, CS-2, CS-3 i CS-4
CSDUp to 9600 bps Transparent / Non-transparent mode,
RLP protocol
SMSText and PDU mode supported
MO (mobile originating), MT (mobile terminating)
SMS indication and acknowledgement
CBS (Cell Broadcast Service)
SMS during circuit-switched calls
SMS storage on module memory and SIM card
Concatenated SMS
FAXGroup 3, Class 2.0
Additional capabilityCall Waiting, Call Forwarding, Multi-Party
USSD (Unstructured Supplementary Services Data)
RTC – real time clock, alarm
Output powerClass 4 (33 dBm, 2W for 900 MHz band)
Class 1 (30dBm, 1W for 1800 MHz band)
SIM cardMicro SIM, 1.8V/3.0V
Serial RS232 interfaceITU-T V.24, DCE configuration, DB9 female
Serial baud rateAuto baud rate detection - default
2400, 4800, 9600, 19200, 38400, 57600, 115200 bps
Data format8N1 (8 data bits, No parity, 1 stop bit) - default
8N2 (8 data bits, No parity, 2 stop bits)
8E1 (8 data bits, Even parity, 1 stop bit)
8O1 (8 data bits, Odd parity, 1 stop bit)
7E1 (7 data bits, Even parity, 1 stop bit)
7O1 (7 data bits, Odd parity, 1 stop bit)
Flow controlHardware - default, Software, None
Antenna connector SMA female
LED indicationgreen – Power ON, red – activity of the GSM network
Power supplyDC power supply, from 8 to 30V overvoltage and reverse polarity protection
Power supply connectorPluggable screw clamp, 3.5mm, 1.5mm2
Power consumptionStandby 0.2W, Max 2.5W
Dimension88 x 58 x 28 mm (without connectors)
Weightcca 100g
Temperature range od -40°C do +85°C od 0 do 95% RH (non condensed)
MountingDesktop case
Optional holder for 35mm DIN rail mounting


GT34010410Industrial GSM communication device€99


Add To Cart
SKU# 10410

*Minimum functionality kit needs to include the device, appropriate power supply and antenna. Please note that all accessories are sold separately.

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Product Documents