User's Manual Part 1

MC75 Hardware Interface Description

Strictly confidential / Draft

MC75_V00.190a Page 17 of 91 15.02.2005

Feature Implementation

CSD

• V.110, RLP, non-transparent

• 2.4, 4.8, 9.6, 14.4 kbps

• USSD

PPP-stack for GPRS data transfer

SMS

• Point-to-point MT and MO

• Cell broadcast

• Text and PDU mode

• Storage: SIM card plus 25 SMS locations in mobile equipment

• Transmission of SMS alternatively over CSD or GPRS.

Preferred mode can be user defined.

Fax Group 3; Class 1

Audio Speech codecs:

• Half rate HR (ETS 06.20)

• Full rate FR (ETS 06.10)

• Enhanced full rate EFR (ETS 06.50/06.60/06.80)

• Adaptive Multi Rate AMR

Speakerphone operation

Echo cancellation, noise suppression

DTMF

7 ringing tones

Software

AT commands AT-Hayes GSM 07.05 and 07.07, Siemens

AT commands for RIL compatibility (NDIS/RIL)

Microsoft

compatibility RIL / NDIS for Pocket PC and Smartphone

SIM Application Toolkit SAT Release 99

TCP/IP stack Access by AT commands

IP adresses IP version 6

Firmware update Download over serial interface ASC0

Download over SIM interface

Download over USB

Interfaces

2 serial interfaces

ASC0

• 8-wire modem interface with status and control lines,

unbalanced, asynchronous

• 1.2 kbps to 460 kbps

• Autobauding TBD

• Supports RTS0/CTS0 hardware handshake and software

XON/XOFF flow control.

• Multiplex ability according to GSM 07.10 Multiplexer Protocol.