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.
SPECIFICATIONS
| 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 | 2 A |
| Digitization speed | 500 ksps |
| Mobile class | B |
| GPRS standard | class 10 |
GPRS MODEM-CONTROLLER GMC-1