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GTR64 http://www.matrix.es/GTR64
1. INTRODUCTION................................................................................................................................................. 5
1.1 Description............................................................................................................................ 5
1.2 Highlights.............................................................................................................................. 6
1.3 GTR-64 Wireless modems in a Communication System.............................................................. 7
1.4 Main Features and Services .................................................................................................... 9
1.4.1 Types of Mobile Station.............................................................................................................................. 9
1.4.2 Short Message Service................................................................................................................................9
1.4.3 Voice Calls .................................................................................................................................................9
1.4.4 Data..........................................................................................................................................................10
1.4.5 GPRS Multi-Slot Support.......................................................................................................................... 10
1.4.6 SIM Card.................................................................................................................................................. 10
1.4.7 Power Consumption ................................................................................................................................. 10
1.5 Precautions ......................................................................................................................... 10
2. MECHANICAL DESCRIPTION...................................................................................................................... 11
2.1 Overview ............................................................................................................................ 11
2.2. Dimensions ........................................................................................................................ 12
3. ELECTRICAL DESCRIPTION........................................................................................................................ 12
3. ELECTRICAL DESCRIPTION........................................................................................................................ 13
3.1 Power Conector ................................................................................................................... 13
3.2 Audio Conector.................................................................................................................... 14
3.3 Mini USB Connector ............................................................................................................. 15
3.4 Antenna Conector ................................................................................................................ 16
3.5. SIM card reader.................................................................................................................. 16
3.6 RS232 Serial Port................................................................................................................. 17
3.6.1 Serial Data ............................................................................................................................................... 18
3.6.2 Serial Data Signals - RD, TD ................................................................................................................... 18
3.6.3 Control Signals - RTS, CTS, DTR, DSR, DCD, RI ................................................................................... 18
3.7 Expansion I/O port............................................................................................................... 19
3.7.1. SECONDARY SERIAL PORT.................................................................................................................. 20
3.7.2. I2C Serial Control Bus............................................................................................................................ 20
3.7.3. SPI Bus .................................................................................................................................................... 21
3.7.4. General Purpose IO................................................................................................................................. 21
3.7.5 Real Time Clock .......................................................................................................................................22
3.8. Software Updates ............................................................................................................... 22
4. OPERATION....................................................................................................................................................... 23
4.1 Switching On the Modem...................................................................................................... 23
4.2 Switching Off the Modem ..................................................................................................... 23
4.3 Resetting the Modem ........................................................................................................... 23
4.4 Operating States/LED........................................................................................................... 23
5. EMBEDDED APPLICATIONS.........................................................................................................................24
5.1 Features ............................................................................................................................. 24
5.2 Implementation ................................................................................................................... 24
5.2.1 Limitations................................................................................................................................................ 24
5.2.2 M2mpower IDE (Integrated Developers Environment) ........................................................................... 25
6 SAFETY AND PRODUCT CARE...................................................................................................................... 25
6.1. Safety instructions .............................................................................................................. 25
6.2. General precautions ............................................................................................................ 25
GTR64 Integrators Manual V.1.2 Pag. 3
Preliminary. Subject to change without prior notice