SIMCom SIM900DS

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SIM900DS

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SIMCom SIM900DS
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Product description

SIMCom presents an ultra compact and reliable wireless module---SIM900-DS with special features, Dual-SIM Dual-Standby, which allows customers to use two SIM cards in one device simultaneously. This is a complete Quad-band GSM/GPRS module with a SMT type and designed with a very powerful single-chip processor integrating ARM926EJ-S core, allowing you to benefit from small dimensions and cost-effective solutions.

Featuring an industry-standard interface, SIM900-DS 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 24*24*3 mm same as SIM900,  it can fit almost all the space requirements in your M2M applications, especially for slim and compact demands of design.

Technical specifications

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)
  • SAIC (Single Antenna Interference Cancellation) support
  • Dimensions: 24* 24 * 3 mm
  • Weight: 3.4g
  • 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: 1.5mA(sleep mode& BS-PA-MFRMS=9 )
  • Operation temperature: -40 ℃ to +85 ℃

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

  • 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
  • MMS
  • E-MAIL
  • DTMF
  • NETSCAN
  • JD
  • SSL

Specifications for Voice

  • Tricodec
    – Half rate (HR)
  • – Full rate (FR)
  • – Enhanced Full rate (EFR)
  • AMR
    - Half rate (HR)
  • - Full rate (FR)
  • Hands-free operation (Echo suppression)

Interfaces

  • SIM Card Interfaces (Dual Standby)
    -SIM card 1: 3V/ 1.8V
    -SIM card 2: 3V/ 1.8V
  • Analog audio interface
  • RTC backup
  • SPI interface 
  • Serial interface 
  • Antenna pad
  • PCM
  • I2C
  • GPIO
  • ADC

Compatibility

  • AT cellular command interface
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