The SIM301S/341S is a complete Dual-band/Quad-band GSM/GPRS solution in a module which can be embedded in the customer applications.

Featuring an industry-standard interface, the SIM301S/341S delivers Dual-band GSM900/1800MHz or Quad-band GSM850/900/1800/1900MHz performance for voice, SMS, Data, and Fax in a small form factor and with low power consumption.

The leading features of SIM301S/SIM341S make it ideal for applications such as WLL applications  and  handheld devices. General features
  • Dual-band GSM 900/1800MHz or Quad-band • 850/900/1800/1900MHz
  • GPRS multi-slot class 10/8
  • GPRS mobile station class B
  • Compliant to GSM phase 2/2+
– Class 4 (2 W @ 850/900MHz)
– Class 1 (1 W @ 1800/1900MHz)
  • Dimension: 40mm x 33mm x 2.9 mm
  • Weight: 8 g
  • 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: -20℃to +60℃
  • Restricted operation temperature: -30 °C to -20 °C and +60 °C to +80 °C
  • Storage temperature: -40°C to +85°C

Specifications for fax
  • Group 3, class 1

Specifications for data:
  • PBCCH support
  • GPRS class 10: max. 85.6 Kbps (downlink)
  • PPP-stack
  • Coding schemes CS 1, 2, 3, 4
  • CSD up to 14.4 kbps
  • USSD
  • Non transparent mode

Specifications for SMS via GSM
  • Point-to-point MO and MT
  • SMS cell broadcast
  • Text and PDU mode

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
  • Two analog audio interfaces
  • RTC backup
  • Serial interface and debug interface
  • LCD interface
  • Keypad interface
  • Antenna connector and antenna pad