| SIM508/548 module is a Tri-Band/Quad-Band GSM/GPRS-enabled module
that is also equipped with AGPS technology. The compact design of
the SIM508/548 makes it easy to integrate GSM/GPRS & GPS as an
all-in-one solution. You will save significantly both time and cost
for the integration of additional hardware components. The combination of both technologies can fit almost all the space requirement in your applications, it allows valuable asset to be tracked seamlessly at any location and anytime with signal coverage. Physical features Overall dimensions: 55mm x 34mm x 3mm Weight: Approx. 12g Normal operation temperature: -30 to +80 Restricted operation temperature: -40 to -30 and +80 to +85 Storage temperature: -40 to +85 GSM/GPRS specifications Tri-Band GSM 900/1800/1900MHz, or Quad-Band GSM 850/900/1800/1900 MHz GPRS multi-slot class 10/8 GPRS mobile station class B Compliant to GSM phase 2/2+ - Class 4(2W @ GSM850/900MHz) - Class 1(1W @ GSM1800/1900MHz) Control via AT commands (GSM 07.07 and 07.05 and SIMCom enhanced AT commands) SIM application tool kit Low power consumption Supply voltage range: 3.4V - 4.5V Specifications for GPS Receiver 20 channels, L1 1575.42 MHz, C/A code 1, 023MHz chip rate Accuracy Position 2.5m CEP Without SA/Velocity 0.1m/s Without SA/Time 1¦Ìs synchronized to GPS time Position with DGPS/SBAS: 2.0m CEP Date WGS-84 Acquisition rate (TTFF defined at 95% of first position local station) Hot start < 1s, average, open sky Warm start: 35s, average, open sky Cold start: 35s, average, open sky Operating voltage 3.3V DC PLUS/subtract 5% Low power consumption about 160mW at 3.3 V(full power) Protocols NMEA-0183 SiRF binary RTCM SC-104 Crystal oscillator (TCXO), temperature compensated with frequency stability of PLUS/subtract 0.5ppm Memory: On-chip 4Mbit FLASH and 1Mbit SRAM |
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