Gsm/gprs Modules Sim900/sim900a - 24x24x3 Mm, Quad/dual-band, 85.6 Kbps Data Rate, Serial Spi I2c Interfaces, Low Power

Our offered range of GSM/GPRS Modules SIM900/SIM900A is available with following specifications :-

General features of GSM/GPRS Modules:
SIM900: Quad-Band 850/ 900/ 1800/ 1900 MHz
SIM900A: Dual-Band 900/ 1800 MHz
GPRS multi-slot class 10/8
GPRS mobile station class B
Compliant to GSM phase 2/2+
a Class 4 (2 W @850/ 900 MHz)
a Class 1 (1 W @ 1800/1900MHz)
Dimensions: 24* 24 * 3 mm
Weight: 7g
Control via AT commands (GSM 07.07 ,07.05 and
SIMCOM enhanced AT Commands)
SIM application toolkit
Supply voltage range 3.4 ... 4.5 V
Low power consumption
Normal Operation temperature: -30 A C to +80 A C

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

Drivers
MUX Driver

Specifications for Voice
Tricodec
a Half rate (HR)
a Full rate (FR)
a Enhanced Full rate (EFR)
Hands-free operation
i Echo suppressioni

Interface
Interface to external SIM 3V/ 1.8V
analog audio interface
RTC backup
SPI interface
Two Serial interfaces
Antenna pad
I2C
GPIO
PWM
ADC

Compatibility : AT cellular command interface