Sim900a Gsm And Gprs Serial And Ttl Modem

We are engaged in offering excellent quality SIM900A GSM And GPRS Serial And TTL Modem to our valuable clients. Featuring an industry-standard interface, the SIM900A delivers GSM/GPRS 900/1800MHz performance for voice, SMS, Data, and Fax in a small form factor and with low power consumption. With Board size of 75x54mm, and interfacing ports of Serial UART DB9 Female, TTL, Mic, Speaker, I2C, ADC, PWM (Floating Points). with Power Button (press and hold for 3 seconds to power on the module), Reset button and with in built regulated power supply, can operate from 9v to 12v AC/DC. has an option for SMA Antenna.

General features
a cDual-Band 900/ 1800 MHz
a cGPRS multi-slot class 10/8
a cGPRS mobile station class B
a cCompliant to GSM phase 2/2+
a Class 4 (2 W @900 MHz)
a Class 1 (1 W @ 1800MHz)
a cSAIC (Single Antenna Interference Cancellation) support
a cControl via AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands)
a cSIM application toolkit
a cinternal Supply voltage range : 3.2 ... 4.8V
a cExternal Supply voltage range : 9 ... 12V DC
a cLow power consumption: 1.0mA(sleep mode&BS-PA- MFRMS=9 )
a cOperation temperature: -40A C to +85 A C

Specifications for Fax
a cGroup 3, class 1

Specifications for GPRS Data a cGPRS class 10: max. 85.6 kbps (downlink)
a cPBCCH support
a cCoding schemes CS 1, 2, 3, 4
a cPPP-stack

Specifications for CSD Data
a cCSD up to 14.4 kbps
a cUSSD
a cNon transparent mode

Specifications for SMS via GSM/GPRS
a cPoint to point MO and MT
a cSMS cell broadcast
a cText and PDU mode