Siemens MC35 Specifications download pdf (Page 17)

MC35i Terminal Hardware Interface Description

Confidential / Released

MC35i_T_HD_v02.00a Page 17 of 42 16.02.2007

3.3 The MC35i GSM/GPRS engine

The MC35i GSM/GPRS engine is a major functional component of the MC35i Terminal that

handles all the processing for audio, signal and data within a GSM/GPRS cellular device.

Internal software runs the application interface and the whole GSM and GPRS protocol

stack. A UART forms the interface to the Terminal Circuit.

Designed to easily provide radio connection for voice and data transmissions it integrates

seamlessly with a wide range of GSM/GPRS application platforms and is ideally suited to

design and set up innovative cellular solutions with minimum effort.

MC35i Terminal supports GPRS multislot class 8 (4 Rx, 1 Tx time slot) and GPRS coding

schemes CS-1, CS-2, CS-3 and CS-4. It operates in the frequency bands GSM 900 MHz

and GSM 1800 MHz.

A GSM baseband processor contains all analog and digital functionality of a cellular radio.

Designed to meet the increasing demands of the GSM/PCS/GPRS cellular subscriber

market, it supports FR, HR and EFR speech and channel coding without the need for

external hardware.

The RF part of the GSM engine MC35i is based on a highly integrated single transceiver

chip solution.

The internal antenna cable connects to the connector type GSC from Murata with a 50

impedance. This GSC connector is the ARP (Antenna Reference Point) for type approval

measurements as well as for electrical characteristics.

Figure 2: MC35i GSM engine

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Siemens MC35 Specifications Page 17