SIM-908
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 coverageGeneral features
- Quad-Band 850/900/1800/1900 MHz
- 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)
- Dimensions: 30 x 30 x 3.2 mm
- Weight: 5.2 g
- 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
- Operation temperature: -40°C to +85 °C
Specifications for Fax
- Group 3, class 1
Specifications for Data transfer
- GPRS class 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
Specifications for SMS via GSM/GPRS
- Point to point MO and MT
- SMS cell broadcast
- Text and PDU mode
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
Specifications for Voice
- Tricodec
- Half rate (HR)
- Full rate (FR)
- Enhanced Full rate (EFR)
- Echo cancellation
- Hands-free operation (Echo suppression)
Interfaces
- 80-pad with SMT type
- Interface to external SIM 3V/ 1.8V
- Dual analog audio interfaces
- RTC backup
- SPI interface
- Serial interface and a debug interface for GSM/GPRS
- Debug interface for GPS NMEA information output
- Two separate antenna connectors for GSM/GPRS&GPS
Compatibility
- AT cellular command interface
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