> 2 | Integrated Documents

> IDS integrates the following documents:

> • | TC65 AT Command Set

> The AT Command Set presents a complete description of the AT commands available for your module. The AT commands are grouped according to their function and explained with their syntax, parameters, result codes, application examples and hints on their usage.

> • | TC65 Hardware Interface Description/TC65 Terminal Hardware Interface Description

> The Hardware Interface Description describes the hardware of the module that connects to the cellular device application and the air interface. It helps users to quickly retrieve interface specifications, electrical and mechanical details and information on the requirements to be considered for integrating further components.

> • | AN02: Audio Interface Design for GSM Applications

> This Application Note provides technical recommendations for integrating audio accessories into cellular applications based on your module. It discusses various solutions for typical design approaches, evaluates strategies of overvoltage protection, explains the concept of speakerphone operation, and then focuses on audio specific AT commands. A list of sales contacts and a summary of the discussed audio accessories is included.

> • | AN07: Rechargeable Lithium Batteries in GSM Applications

> This Application Note provides technical assistance in integrating rechargeable Lithium Ion and Lithium Polymer batteries into host applications based on your module. The document describes the requirements for batteries and chargers, discusses appropriate charging circuits and explains operational issues typical of battery powered GSM/GPRS applications.

> • | AN16: Upgrading Firmware

> This Application Note describes how to update the firmware of your module. The firmware is stored in a Flash memory.

> • | AN22: Using TTY / CTM Equipment

> This Application Note describes the technical requirements for using a TTY device. Your module offers basic support for equipment using the CTM standard (Cellular Text Telephone Modems). TTY stands for Text Telephone and is a special device that lets people who are deaf, hard of hearing or speech-impaired use telephone systems to communicate via PSTN.

> • | AN24: Application Developer’s Guide

> This Application Note provides advice on command sequences and proposals for small implementations to make the startup of an MMI implementation easier. Examples and useful descriptions are included and will be continuously enhanced according to the customers’ requirements.

> • | AN26: Power Supply for Wireless Applications

> This Application Note supports system integrators in developing an application layout that minimizes current consumption, reduces the effects of voltage drops and ripples and ensures a reliable product performance.

> • | AN32: Integrating USB into GSM Applications

> The purpose of this Application Note is to provide a detailed technical specification for the module’s USB interface and to assist application engineers in designing applications with full support of USB by describing the performance scope USB interface.

> • | AN45: Jamming Detection - Radio Link Stability Monitor

> The purpose of this Application Note is to describe how wireless modules monitor their radio link stability and how the monitoring data may be used by software programs to detect jamming of the module’s radio downlink by an evenly strong RF transmitter.

> • | Multiplexer User Guide

> This User Guide describes how to use the multiplexer and then explains how to design an external multiplexer and integrate it into an application on top of a Siemens GSM engine.

> • | Multiplexer Driver Installation Guide

> This User Guide describes how to install the Microsoft® Windows XP™ and Microsoft® Windows Vista™ multiplexer driver in a Windows based application.

> • | Multiplexer Driver Developer Guide

> This User Guide supports developers and system integrators in designing, developing and testing customized multiplexer applications.

> • | Java User’s Guide

> The Java User’s Guide explains how install the Java CD provided together with the module. It describes how to employ the provided Java tools in order to implement customized applications for the module.