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XT65/XT75 Hardware Interface Overview

2.1 Key Features at a Glance

XT65_XT75_HO_v00.130 Page 15 of 58 2006-10-12

Confidential / Preliminary

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

GPS Features

Supported Protocol NMEA-0183, RTCM v2.2, UBX binary protocol

GPS modes GPS, Assisted GPS (AGPS), Differential GSP (DGPS), Satellite Based Augmen-

tation Systems (SBAS)

Position accuracy 10-15m, with DGPS/SBAS 1-3m

Start-up times Hot start < 3.5s

Warm start 33s, average

Cold start 34s, average

Sensitivity Active antenna:

Aquisition sensitivity: -141dBm

Tracking sensitivity: -158dBm

At antenna connector:

Aquisition sensitivity: -139dBm

Tracking sensitivity: -156dBm

General Receiver 16 channel, L1 1575.42 MHz, GPS part controlled by GSM baseband

controller, Java engine or via application (ASC0)

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

Java platform

JDK Version: 1.4.2_09

Java Virtual Machine with APIs for AT Parser, Serial Interface, FlashFileSystem

and TCP/IP Stack.

Major benefits: seamless integration into Java applications, ease of program-

ming, no need for application microcontroller, extremely cost-efficient hardware

and software design – ideal platform for industrial GSM applications.

The memory space available for Java programs is around 1.2 MB in the flash file

system and around 400kB RAM. Application code and data share the space in

the flash file system and in RAM.

Feature Implementation

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