Description :
SIM908 module is a high performance industrial GSM/GPRS/GPS module. The interfaces of this development board are rich, perfect functions, especially is suitable for the need to voice/SMS/GPRS/GPS navigation data service of all kinds of fields. SIM908 development board is not only beautiful, but also completed function, rich interface. The module size (not including antenna part) is 77.978 mm * 73.787 mm. The module has mounting holes which are very small, and conducive to install and can be easily applied to all kinds of product design.

Main characteristics:
- GPRS multi-slot class 10 standard
- GPRS mobile station class B standard
- Meet the GSM phase 2/2 Standard
- Class 4 (2 W @ 850/900 MHz)
- Class 1 (1 W @ 1800/1900MHz)
- AT command control (GSM 07.07, 07.05 and SIMCom enhanced AT command set)
- SIM Application Toolkit
- Support voltage range: GPRS: 3.2 ~ 4.8 V, GPS: 3.0 ~ 4.5V
- Low power consumption
- Operating temperature: 40 ° C to 85 ° C

Specifications for SMS via GSM / GPRS
Point-to-point MO and MT
SMS cell broadcast
Text and PDU mode

Specifications for audio
Tricodec
- Half rate (HR)
- Full rate (FR)
- Enhanced Full rate (EFR)
Hands-free operation
Echo cancellation

Specifications 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
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 antenna connectors for GSM/GPRS&GPS

Package list:

• 1x SIM908 development module
• 2x USB cable
• 1x Power cord
• 1x GPS Antenna
• 1X GSM Antenna