Cinterion Siemens TC35i GSM Module

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Cinterion Siemens TC35i GSM Module
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Product description

The TC35i is a GSM module with basic connectivity enabling voice and fax communication as well as applications with a low data transfer volume. It is extremely compact in size and economical in power consumption.

The small size and flexible integration of the wireless module make it relatively easy to incorporate in M2M applications intended for deployment in business fields as varied as metering, remote maintenance, transportation and logistics, traffic systems, vending machines, security, healthcare, and facility management. Being purely designed for GSM communications, the TC35i is especially suitable for use in payphones and desktop phones.

The TC35i comes with full type approval (FTA), which saves cost for certification and cuts down the time to market for your new product considerably.

Technical specifications

General features

  • Dual-Band GSM 900/1800 MHz
  • Compliant to GSM phase 2/2+
  • Output power:
    - Class 4 (2 W) for EGSM900
    - Class 1 (1 W) for GSM1800
  • Control via AT commands
  • SIM Application Toolkit
  • Supply voltage range: 3.3 ... 4.8V
  • Power consumption:
    - Power down 50 μA
    - Sleep mode 3.5 mA
    - Speech mode (average) 300 mA
  • Temperature range
    - Normal Operation: -20°C to +70°C
    - Restricted Operation: -25°C to +75°C
    - Switch off: +80°C
    - Storage: -40°C to +85°C
  • Dimensions: 36 x 54.5 x 3.6 mm
  • Weight: 9 g

Specification for CSD data transmission

  • Up to 14.4 kbps
  • V.110
  • Non-transparent mode
  • USSD support

Specification for SMS

  • Point-to-point MO and MT
  • SMS cell broadcast
  • Text and PDU mode
Specification for fax
  • Group 3, class 1, 2

Specification for voice

  • Triple-rate codec for HR, FR and EFR
  • Basic hands-free operation
  • Echo cancellation
  • Noise reduction

Special features

  • 7E1-character framing


  • 50 Ω GSC RF connector
  • 40-pin ZIF connector:
    - Power supply
    - Audio: 2x analog
    - SIM card interface 3V
    - Serial interface (ITU-T V.24 protocol)


  • R&TTE, GCF, CE
  • Local approvals and network operator certifications
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