∟ 射频(同轴)连接器(6)
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SIM900/SIM900A是一款贴片式GPRS模块 General features
* Quad-Band 850/ 900/ 1800/ 1900 MHz * GPRS multi-slot cl* 10/8 * GPRS mobile station cl* B * Compliant to GSM phase 2/2+ – Cl* 4 (2 W @850/ 900 MHz) – Cl* 1 (1 W @ 1800/1900MHz) * Dimensions: 24*24*3mm * Weight: 3.4g * Control via AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands) * SIM application toolkit * Supply voltage range : 3.1 ... 4.8V * Low power consumption: 1.5mA(sleep mode) * Operation temperature: -40°C to +85 °C Specifications for Fax
* Group 3, cl* 1 Specifications for Data
* GPRS cl* 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-stack 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( available at late July ,2010) * FOTA ( available at July ,2010) * MMS (available at July ,2010) * Embedded AT (available at Q3,2010) 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 * *og audio interface * RTC backup * SPI interface (option) * Serial interface * Antenna pad * I2C * GPIO * PWM * ADC |
友情链接： 深圳市元东发电子有限公司
