SIM908C module is a complete Quad-band GSM/GPRS module which combines GPS technology for satellite navigation General features:

• Quad-Band 850/900/1800/1900MHz GPRS multi-slot class 10 GPRS mobile station class B Compliant to GSM phase 2/2+-Class 4 (2W at 850/900MHz)-Class 1 (1W at 1800/1900MHz) Control via AT commands (GSM 07.07 ,07.05 and SIMCom enhanced AT Commands) SIM application toolkit Supply voltage range: GPRS: 3.2 - 4.8V, GPS: 3.0 - 4.5V Low power consumption Dimensions: 30*30*3.2mm Weight:
  • SIM908: 5.2g SIM908-C: 11.1g
  Operation temperature: -40°C to +85°C

Specifications for SMS via GSM/GPRS:

• Point-to-point MO and MT SMS cell broadcast Text and PDU mode

Specifications for audio:

• Tricodec-half rate (HR):
  • Full rate (FR) Enhanced Full rate (EFR)
  Hands-free operation Echo cancellation

Specifications for data transfer:

• GPRS class 8/10: maximum 85.6kbps (downlink) PBCCH support Coding schemes CS 1, 2, 3, 4 CSD up to 14.4 kbps USSD Non transparent mode PPP-stack Integrated TCP/IP stack

Compatibility: AT cellular command interface Specification for GPS:

• Receiver type:
  • 42-channel GPS L1 C/A code, High-performance STE engine
  Sensitivity:
  • Tracking: -160dBm Cold starts: -143dBm Time-to-first-fix Cold starts: 30s (typ.) Hot starts: 1s (typ.)
  Accuracy: horizontal position: <2.5m CEP Power consumption (GSM engine in idle mode):
  • Acquisition 77mA Tracking 76mA

Interfaces:

• 80-pad with SMT type Interface to external SIM 3V/ 1.8V Dual analog audio interfaces SPI interface RTC backup Charge interface A serial interface and a debug interface for GSM/GPRS Debug interface for GPS NMEA information output Two separate antenna connectors for GSM/GPRS/GPS

Certificates:

• CE RoHS