GSM9000

Huawei GTM900 is a type of tri-band wireless module supporting both GSM and GPRS. The module supports both standard AT commands and enhanced AT commands and provides a variety of voice services and data services. It is an ideal solution to high-speed data transmission. Through AT command sets, GTM900 communicates with the external CPU over the URAT interface, performing such functions as radio transmit and receive, baseband processing and audio processing. The peripheral equipment like keyboard and LCD is controlled by the external CPU. GTM900 uses a GSC connector to establish the RF connection to the relevant terminal.

• Supporting the single band operation at 800MHz
• Supporting the tri-band operation at 800MHz, 900MHz and 1800MHz
• Easy switchover between the above three bands through software
• Supporting 850MHz and 1900MHz through hardware replacement
• Providing the UART interface
• Supporting the maximum rate of the serial interfaces at 115.2kbps
• Supporting the packet data services of GPRS class 10
• Supporting speech encoding in the modes of FR, HR, EFR and AMR
• Supporting both standard AT command sets and enhanced AT command sets
• Providing interfaces, including UART, Audio, SIM, Power, Control and ADC

Applications

Multimedia, Portable Devices, RF Communications, Wireless, Audio

Warnings

The modem generates radio frequency (RF) power. When using the modem care must be taken on safety issues related to RF interference as well as regulations of RF equipment.

Notes

Be sure that the modem will not be interfering with nearby equipment. For example pacemakers or medical equipment.