SIM900 /SIM900D SIMCOM GSM GPRS Quad-Band Module

Usefull Link:SIM900_Hardware Design_V2.04,SIM900_AT Command Manual_V1.07,SIM900D_Hardware Design_V2.02

Datasheet：SIM900,SIM900D.

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)
SAIC (Single Antenna Interference Cancellation)
Dimensions: 33* 33 * 3 mm
Weight: 6.4g
Control via AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands)
SIM application toolkit
Supply voltage range : 3.2 ... 4.8V
Low power consumption: 1.0mA(sleep mode&BS-PA-MFRMS=9)
Operation temperature: -40°C to +85 °C

Specification for Fax
Group 3, class 1

Specification for GPRS Data
GPRS class 10: max. 85.6 kbps (downlink)
PBCCH support
Coding schemes CS 1, 2, 3, 4
PPP-stack

Specification for CSD Data
CSD up to 14.4 kbps
USSD
Non transparent mode

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

Software features

0710 MUX protocol
Embedded TCP/UDP protocol
FTP/HTTP
FOTA
MMS
Embedded AT

Specification for Voice

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

Interfaces
Interface to external SIM 3V/ 1.8V
Analog audio interface
RTC backup
SPI interface (option)
Serial interface
Antenna pad
I2C
GPIO
PWM
ADC
Compatibility
AT cellular command interface
Approvals
CE, FCC, RoHS, PTCRB, GCF
IC, ICASA, T