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SIM548C 1
SIM548C 1



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    SIM548C module is a compact Quad-Band GSM/GPRS-enabled module that is also equipped with GPS technology for satellite navigation. The compact design of the SIM548C 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.

    Featuring an industry-standard interface and GPS function, the combination of both technologies allows valuable asset to be tracked seamlessly at any location and anytime with signal coverage.

    General features 
      - Quad-Band GSM 850/900/1800/1900MHz 
      - GPRS multi-slot class 10 
      - 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 3.4…4.5 V 
      - Normal operation temperature: -30°C to +80°C 
      - Restricted operation temperature: -40°C to -30°C and +80°C to +85°C 
      - Storage temperature: -45°C to +90°C 
      - Dimension: 50*33*8.8mm

    Specifications for GPS 
      - Receiver 20 channels, L1 1575.42 MHz, C/A code 1,023 MHz chip rate 
      - Accuracy Position 2.5 m CEP
         –without SA/Velocity 0.1 m/s,
         –without SA/Time 1 μs synchronized to GPS time 
      - Position with DGPS/SBAS: 2.0 CEP 
      - Date WGS-84 
      - Acquisition rate (TTFF defined at 95% of first position local station)
         – Hot start < 1 s, average, open sky
         – Warm start: 35 s, average, open sky
         – Cold start: 35 s, average, open sky 
      - Support AGPS 
      - Operating voltage 3.3 V DC ±5% 
      - Low power consumption 160mW at 3.3 V (full power) 
      - Protocols
         – NMEA-0183
         – SiRF binary
         – RTCM SC-104 
      - Crystal oscillator (TCXO), temperature compensated with frequency stability of ±0.5 ppm 
      - Memory 4 Mb flash and 1Mb SRAM

      - 60-pin DIP connector 
      - Interface to external SIM 3V or 1.8V 
      - Dual analog audio interface 
      - AT commands via serial interface 
      - Embedded SIM card holder 
      - LCD Interface 
      - RTC Backup 
      - Charge interface 
      - Serial interface and Debug interface 
      - Dual serial interfaces for GPS 
      - Two separate antenna connectors for GSM/GPRS & GPS and two antenna pads for GSM/GPRS & GPS

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