Detailed Product Description
TC35i, GSM module , SIEMENS module
The TC35i GSM engine operating in the GSM 900 MHz and GSM 1800 MHz frequency band is an extremely compact and super slim communication module especially designed for
telemetry, telematic and telephony such as: metering, fleet management, security systems,
POS terminals or vending machines. It is compatible with the predecessor engine TC35 and
offers additional features such as SIM application tool kit and extended AT commands for the
industrial environment. Please note that the upper voltage limit has been changed from 5.5V
to 4.8V.
The physical interface to the cellular application is made through a ZIF connector. It consists of 40 pins, required for controlling the unit, transferring data and audio signals and providing power supply lines.
The cellular device application forms the Man-Machine Interface (MMI). The serial interface
allows for access to the GSM engine.
For battery powered applications, TC35i features a charging control which can be used to
charge a Li-Ion battery.
