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QD GSM Modem Module Fact Sheet

The S3 is a Cellular modem that operates over the GPRS/GSM network. It supports both the GPRS packet-switched and the GSM circuit switched data services. Can be used for the varying applications.

  • Utility meters readings.
  • Electronic road displays.
  • Traffic signal monitoring and control units.
  • On-board vehicle computers for vehicle tracking.
  • Mobile dispatch and field service.
  • Surveillance video cameras.
  • Data logger.
Frequency Bands - 900 MHz @ 2 Watts.
- 1800/1900 MHz @ 1 Watt
Host Interface - RS232 Serial Data port.
- Supports AT command interface,
  GSM 07.07, 07.05.
- Speeds from 1200 bps to 115200 bps
Interface Connector - DB9 - female.
Data Services - GPRS class10: Max 85.6 kbps (downlink).
- PBCCH support.
- Coding Scheme 1,2,3,4
- CSD upto 14.4Kbps, USSD,
  Non Transparent Mode.
- PPP-stack
Short Message Service (SMS) - Point to point MO and MT.
- SMS cell broadcast, Text and PDU mode.
Antenna Connection - SMA 50 ohms - female
LED Status Indicators - GSM
Power Specifications  
Input Voltage - 7 VDC to 30 VDC (12 VDC nominal)
Consumption @ 12 VDC - Transmit : 120mA
Environmental - Operating temperature: -20°C to +55°C.
- Storage temperature: -40°C to +80°C
Drivers - Microsoft Windows Mobile, RIL driver,
  MUX driver.
Physical Characteristics  
Dimensions - L x W x H : 80mm x 66mm x 27mm

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