User ManualTable of Contents1. INTRODUCTION41.1 Description51.2 Highlights6Interfaces6General Features6Data Features6Voice Features7Short Message Service (SMS) Features7Internet Protocols7Embedded Application71.3 GTR-64 Wireless modems in a Communication System71.4 Main Features and Services91.4.1 Types of Mobile Station91.4.2 Short Message Service91.4.3 Voice Calls91.4.4 Data101.4.5 GPRS Multi-Slot Support101.4.6 SIM Card101.4.7 Power Consumption101.5 Precautions102. MECHANICAL DESCRIPTION112.1 Overview112.2. Dimensions123. ELECTRICAL DESCRIPTION123.1 Power Conector133.2 Audio Conector14Unit143.3 Mini USB Connector153.4 Antenna Conector163.5. SIM card reader163.6 RS232 Serial Port173.6.1 Serial Data183.6.2 Serial Data Signals - RD, TD183.6.3 Control Signals - RTS, CTS, DTR, DSR, DCD, RI183.7 Expansion I/O port193.7.1. SECONDARY SERIAL PORT203.7.2. I2C Serial Control Bus203.7.3. SPI Bus213.7.4. General Purpose IO213.7.5 Real Time Clock223.8. Software Updates224. OPERATION234.1 Switching On the Modem234.2 Switching Off the Modem234.3 Resetting the Modem234.4 Operating States/LED235. EMBEDDED APPLICATIONS245.1 Features245.2 Implementation245.2.1 Limitations245.2.2 M2mpower IDE (Integrated Developers Environment)256 SAFETY AND PRODUCT CARE256.1. Safety instructions256.2. General precautions256.3. SIM card precautions266.4. Antenna precautions266.5. Radio Frequency (RF) exposure and SAR266.6. Personal Medical Devices277. INSTALLATION OF THE MODEM277.1 Where to install the modem277.1.1 Environmental conditions277.1.2 Signal strength277.1.3 Connections of components to GTR64 Terminal287.1.4 Network and Subscription287.2 How to install the modem287.2.1 Power supply287.2.2 Securing the modem287.3 Antenna287.3.1 General287.3.2 Antenna type297.3.3 Antenna placement297.3.4 The antenna cable297.3.5 Possible communications disturbances297.4 Accessories298. DISPOSAL OF OLD ELECTRICAL & ELECTRONIC EQUIPMENT (WEEE MARK)339. ABBREVIATIONS33Size: 829 KBPages: 38Language: EnglishOpen manual