GSM/GPRS RS232 SIM900 modem

Product description

 •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)
support
•Dimensions: 24* 24 * 3 mm
•Weight: 3.4g
•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-PAMFRMS=9 )
•Operation temperature: -40°C to +85 °C

Specifications for Fax
•Group 3, class 1

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

Specifications for CSD Data
•USSD
•Non transparent mode

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

Special firmware
•Embedded AT
•Java (cooperate with Iasolution)
•FOTA
•MMS

Specifications 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

Certifications:
•CE
•FCC
•ROHS
•PTCRB
•GCF
•IC
•ICASA
•REACH

Carrier Approvals:
•NCC
•Anatel
•Rogers
•Orange
•AT&T
•Vodafone

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