This application note reviews each objective with its associated requirements and then details design rules for successful Sierra Wireless mobile devices integration, with a particular focus on PCB design. It is recommended to read this application note before starting a design as its provided guidance can contribute to save time and money by reducing the number of PCB iterations before final certification and market introduction.

This Application Note presents the steps to set up a PPP connection in Linux Operating System using the Sierra Wireless embedded module. As Windows® and Linux® have different procedures for creating a PPP connection, this application note provides details about the process for Linux environment. The steps to create the connection are well supported with images to graphically depict those steps.

The Antenna Switch function enables switching between two antennas and can be implemented on customer application.This application note describes how to design a GSM antenna switch, from component selection to PCB implementation. This switching function can be used with an antenna detection system.

This application note describes how to interface an external battery charging solution with an AirPrime wireless module. It is useful if you have the following requirements: Measured current consumption Different modules' operating modes Different scenarios. This application note will be useful for those customers who want to obtimize the size and the capacity of the battery to be used.

This application note describes how to interface an external battery charging solution with an AirPrime wireless module. It is useful if you have the following requirements: Li-Polymer battery used Possible drops of the battery voltage below its over discharge threshold (~2.8V) Only a DC voltage source available to charge the battery (impossible to connect an external charger)

The purpose of this application note is to provide a first level of suitable information to select and implement a power supply solution for a GSM application.

This Application Note describes methods and services through which an application will be able to perform a Geolocation operation through the use of purely CellID’s without the need for GPS.

This Application Note explains the Sierra Wireless implementation for SMS Data Download. It describes: SMS data download definition in the 3GPP standard Sierra Wireless firmware behavior Advices to support SMS data download.

This Application Note describes the RS-232 PC cards models that are recommended (or not) for High Speed Transfer by Sierra Wireless.

This Application Note describes the hands free solution available on AirPrime Q26 and WMP Series, and the SL6087 module. A brief explanation of the hands free solution is followed by a detailed presentation covering the following: Overview and block schematic Parameters explanation Tuning guidelines and default parameters

This application note gives an overview of the CMUX feature for multiplexing data over serial link, and describes the Sierra Wireless implementation of CMUX. The CMUX feature allows multiple virtual ports to be created on a physical serial link (3GPP TS 27.010).

This application note describes how to implement an FTP client using the basic TCP socket functionality available in the WS218 and WS228 module.

This application note describes the steps required to retrieve the IP address (in DOC format) for any issued domain (URL). The conversion is possible using the DNS resolver functionality from the network provider.

This application note explains the Sierra Wireless implementation for PLMN selection and reselection. It also includes a PLMN reselection FAQ.

This application note explains how to use the PCB antenna on AirPrime GSM/GPRS modules operating on the 850 and 1900 MHz frequency bands.

This application note describes how to power ON and power OFF the AirPrime module’s SIM interface for SIM electrical tests (GSM11.11).