GSM/减贫战略的单元SIM900A

1.GSM/GPRS Module SIM900 2.Quad-Band Module sim900 3.GSM/GPRS Module sim900 simcom Product Name: SIM900 A SIMCom presents an ultra compact and reliable wireless module. The SIM900A Quad-band GSM/GPRS module is part of SIMCom's new Surface Mount Technology (SMT) series, allowing you to benefit from small dimensions and cost-effective solutions.Featuring an industry-standard interface, the SIM900 Adelivers GSM/GPRS 850/900/1800/1900MHz performance for voice, SMS, Data, and Fax in a small form factor and with low power consumption. With a tiny configuration of 24mm x 24mm x 3 mm, SIM900 can fit almost all the space requirements in your M2M application, especially for slim and compact demand of design.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 * 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 ° C to +80 ° CSpecifications for Fax Group 3, class 1Specifications 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-stackSpecifications for SMS via GSM/GPRS Point to point MO and MT SMS cell broadcast Text and PDU modeDrivers MUX DriverSpecifications for Voice Tricodec -Half rate (HR) -Full rate (FR) -Enhanced Full rate (EFR) Hands-free operation (Echo suppression)Interface Interface to external SIM 3V/ 1.8V analog audio interface RTC backup SPI interface Two Serial interfaces Antenna pad I2C GPIO PWM ADCCompatibility AT cellular command interfaceApprovals(planning) CE FCC ROHS PTCRB GCF AT&T