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.
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General features
- Quad-Band 850/900/18001900MHz
- GPRS multi-slot class 10
- GPRS mobile station class B
- Compliant to GSM phase 2/2+
-Class 4 (2 W @ 850/900 MHz)
-Class 1 (1 W @ 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 ~ 4.8 V
-GPS: 3.0 ~ 4.5V
- Low power consumption
- Dimensions: 30*30*3.2mm
- Weight: 5.2g
- Operation temperature:
-40 °C to +85 °C
Specification for SMS via GSM / GPRS
- Point-to-point MO and MT
- SMS cell broadcast
- Text and PDU mode
Specification for audio
- Tricodec
-Half rate (HR)
-Full rate (FR)
-Enhanced Full rate (EFR)
- Hands-free operation
- Echo cancellation
Specification for data transfer
- GPRS class 8/10: max. 85.6 kbps (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
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Specification for GPS
- Receiver type
- 42-channel
- GPS L1 C/A code
- High-performance STE engine
- Sensitivity
-Tracking: -160 dBm
-Cold starts : -143 dBm
- 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 U.FL antenna connectors for GSM/GPRS&GPS
Certifications
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