The GF-2000 GPRS modem developed by Beijing Garefowl New-tech Co., Ltd. it provides mobile users access to Internet and can be connected directly to personal PC via serial port interface. Co-working with dialup software, the modem can automatically detect link status and redial if the link disconnects. It is a highly reliable link satisfying requirements of industrial data transmission. 2. GF-2000 GPRS Modem Functions Basic Functions l Ease to use, reliable and flexible l Support dual band GSM/GPRS l Complied with ETSI GSM Phase 2+ standard l Support A5/1&A5/5 encrypted arithmetic Enhanced Functions l GPRS link detection and redial (work with Microsoft dialup software) l Support dialup control l Send SMS via PC The ultra compact dual-band GF-2000 GPRS Modem has all the right industry standard interfaces for GPRS Class 8 data, voice, SMS and fax applications. It can be powered by a wide range of voltages. A built-in SIM card reader makes it easy to plug the GF-2000 GPRS Modem into your application. It has full type approval according to R&TTE, GCF as well as approvals for E-marking. Please Note: The accessories, AC adapter, RS232 cable and GSM antenna will be required, along with a GSM/GPRS SIM card to operate and use the unit. 3. Features Dual-band EGSM900 and GSM1800 Compliant to GSM phase 2/2+ Output power: - Class 4 (2W) for EGSM900 - Class 1 (1W) for GSM1800 Control via AT commands SIM Application toolkit Multiplex RS232 interface Supply voltage range 8 - 30V Dimensions: 75*50*16mm Weight 150g Ambient temperature: -20oC to +55oC Data transfer GPRS Class 8 (up to 85.6Kbps) Full PBCCH support GPRS mobile station, class B CSD up to 14.4Kbps USSD Non transparent mode V.110 Coding scheme CS1, 2, 3, 4 Fax Group 3, Class 1, 2 SMS Point-to-point MO and MT SMS cell broadcast Text and PDU mode Audio Half Rate (HR) Full Rate (FR) Enhanced Full Rate (EFR) Interfaces Plug in power supply Mini-SIM card reader Antenna connector SMA (male) Standard serial Port (DB-9) Operating status LED