SIMCom presents an ultra compact and reliable wireless module-SIM900D. This is a complete Quad-band GSM/GPRS module in a SMT type and designed with a very powerful single-chip processor integrating AMR926EJ-S core allowing you to benefit from small dimensions and cost-effective solutions. Furthermore SIM900D can be compatible with SIM340DZ. Featuring an industry-standard interface the SIM900D delivers 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 33mm x 33mm x 3 mm SIM900D can fit almost all the space requirements in your M2M applications especially for slim and compact demands 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: 33*33*3mm * Weight: 6.2g * 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) * Operation temperature: -40 °C to +85°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 * USSD * Non transparent mode * PPP-stack Software features * 0710 MUX protocol * embedded TCP/UDP protocol * FTP/HTTP Special firmware * FOTA * MMS * Embedded AT Specifications for Voice * Tricodec Half rate (HR) Full rate (FR) Enhanced Full rate (EFR) Hands-free operation (Echo suppression) AMR Half rate (HR) Full rate (FR) Interfaces * Interface to external SIM 3V/ 1.8V * analog audio interface * RTC backup * SPI interface (option) * Serial interface * Embedded SIM (option ) * Antenna pad * GPIO * ADC * Charge interface for Li battery * PWM Compatibility * AT cellular command interface Certificates: * ROHS * REACH * CE