Model Number: Simcom SIM908 GSM Module Brand Name: GFS Key Specifications/Special Features: GSM+GPRS+GPS combines module, GPS GMS GPRS chip moduleSIM908 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 featuresQuad-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: - SIM908:5.2g - SIM908-C:11.1g

Operation 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

Certifications

CE

RoHS