Sim900s Dual-band Gsm/gprs Module By Shenzhen Haoze Technology Co., Ltd.

 SIM900S Dual-band GSM/GPRS moduleSIMCom presents a compact and reliable wireless module-SIM900S which is compatible with the module-SIM300. This is a complete Dual-band GSM/GPRS module in a B2B 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. The target market of SIM900S is China mainland and India. SIM900S delivers GSM/GPRS 900/1800MHz performance for voice, SMS, Data, and Fax in a small form factor and with low power consumption. The leading features of SIM900S make it ideal for applications such as WLL applications and handheld devices. General features * Dual-Band 900/ 1800MHz * GPRS multi-slot class 10/8 * GPRS mobile station class B * Compliant to GSM phase 2/2+  Class 4 (2 W @900 MHz)  Class 1 (1 W @1800MHz) * Dimensions: 40*33*3 mm * Weight: 7g * Control via AT commands (GSM 07.07 ,07.05 and    SIMCOM enhanced AT Commands) * SIM application toolkit * Supply voltage range :3.2 ... 4.8V * Low power consumption: 1.0mA(sleep mode) * Operation temperature: -20 C to +60 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 * CSD up to 14.4 kbps * 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 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 * 60 PIN Board-to-board connector * Two analog audio interface * RTC backup * SPI interface * UART interface * SIM Interface - Option1: SIM holder (to external SIM 3V/ 1.8V) - Option2: Embeded SIM * Keypad * GPIO * PWM * ADC * Antenna connector Compatibility * AT cellular command interface