SIM908 module is a complete Quad-Band GSM/GPRS module which combines GPS technology for satellite navigation. The compact design which integrated GPRS and GPS in a SMT package will significantly save both time and costs for customers to develop GPS enabled applications. Featuring an industry-standard interface and GPS function, it allows variable assets to be tracked seamlessly at any location and anytime with signal coverage.
General features
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Quad-Band 850/900/18001900MHz
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GPRS multi-slot class 10
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GPRS mobile station class B
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Compliant to GSM phase 2/2+-Class 4 (2 W @ 850/900 MHz)-Class 1 (1 W @ 1800/1900MHz)
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Control via AT commands (GSM 07.07 ,07.05 and SIMCom enhanced AT Commands)
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SIM application toolkit
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Supply voltage range:-GPRS: 3.2 ~ 4.8 V-GPS: 3.0 ~ 4.5V
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Low power consumption
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Dimensions: 30*30*3.2mm
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Weight:-SIM908:5.2g-SIM908-C:11.1g
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Operation temperature:-40 °C to +85 °CSpecifications for SMS via GSM / GPRS
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Point-to-point MO and MT
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SMS cell broadcast
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Text and PDU modeSpecifications for audio
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Tricodec-Half rate (HR)-Full rate (FR)-Enhanced Full rate (EFR)
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Hands-free operation
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Echo cancellationSpecifications for data transfer
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GPRS class 8/10: max. 85.6 kbps (downlink)
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PBCCH support
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Coding schemes CS 1, 2, 3, 4
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CSD up to 14.4 kbps
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USSD
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Non transparent mode
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PPP-stack
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Integrated TCP/IP stackCompatibility
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AT cellular command interface
Specification for GPS
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Receiver type -42-channel -GPS L1 C/A code,-High-performance STE engine
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Sensitivity-Tracking: -160 dBm -Cold starts : -143 dBm
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Time-To-First-Fix -Cold starts: 30s (typ.) -Hot starts: 1s (typ.)
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Accuracy -Horizontal position : <2.5m CEP
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Power consumption (GSM engine in idle mode)-Acquisition 77mA-Tracking 76mAInterfaces
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80-pad with SMT type
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Interface to external SIM 3V/ 1.8V
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Dual analog audio interfaces
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SPI interface
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RTC backup
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Charge interface
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A serial interface and a debug interface for GSM/GPRS
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Debug interface for GPS NMEA information output
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Two separate antenna connectors for GSM/GPRS&GPSCertifications
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CE
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ROHS
