Quad-Band SIMCOM SIM900/ SIM900A/SIM900B/ SIM900D Gsm r Wireless Module

Specifications

Quad-Band SIMCOM SIM900/ SIM900A/SIM900B/ SIM900D gsm r wireless module

SIMCOM SIM900/ SIM900A/SIM900B/ SIM900D Module

General features

* Quad-Band 850/ 900/ 1800/ 1900 MHz
* GPRS multi-slot class 10/8
* 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: 24*24*3mm
* Weight: 3.4g
* Control via AT commands (GSM 07.07 ,07.05 and  
  SIMCOM enhanced AT Commands)
* SIM application toolkit
* Supply voltage range : 3.1 ... 4.8V

Specifications for Fax

* Group 3, class 1  

Specifications for Data

* 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  

Specifications for SMS via GSM/GPRS

* Point to point MO and MT
* SMS cell broadcast
* Text and PDU mode  

Software features

* 0710 MUX protocol
* embedded TCP/UDP protocol
* FTP/HTTP( available at late July ,2010)
* FOTA ( available at July ,2010)
 

Specifications for Voice

* Tricodec
  - Half rate (HR)
  - Full rate (FR)
  - Enhanced Full rate (EFR)
* Hands-free operation
  (Echo suppression)
* AMR
  - Half rate (HR)
  - Full rate (FR)  

Interfaces

* Interface to external SIM 3V/ 1.8V
* analog audio interface
* RTC backup
* SPI interface (option)
* Serial interface
* Antenna pad
* I2C
* GPIO
* PWM
* ADC  

 Certificates:

* CE
* FCC
* ROHS
* PTCRB
* GCF
  

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