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 The GMC-1 is intended for acquisition and transmission of data, about of controllable object condition, through a cell-communication network to the server. 

The GMC-1 includes:

  •  the SIM900 system from GPRS module;
  • processor;
  • signals matching module;
  • external GSM-antenna.

 The modular construction of the device and presence of the programmed processor allow using it in various systems of remote supervision and management.

The clock of a real time and reserve Li-Ion the accumulator, providing operation of controller at switching-off of an external feeding are built in the controller.

The device supports following interfaces: RS-485, RS-232, I2C, SPI, ONEWire. 


Functional capabilities: 

  •  SMS sending and receiving; 
  • Data transmission and reception by GPRS;
  • Reception and transmission of voice calls;
  • Indication about of registration in the GSM network;
  • Presence of dialing fixing number;
  • Access implementation to SIM only through defined GSM network’s operator.  


Number of digital input/output  40  
Number of analogue inputs (0...3V)  16  
Supply voltage from constant-current source  6...40 V  
Supply voltage from internal accumulator  3,7 V (1A per hour)  
Current consumption at call waiting  30 mA  
Current consumption at data transmission mode  300 mA  
Operation time at feeding off-line mode, no more than   
at call waiting mode  33h  
- at data transmission mode  3h  
Current peak value  A  
Digitization speed  500 ksps  
Mobile class  B  
GPRS standard  class 10  

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