Telit Wireless Solutions LE920 Installation manual

APPLICABILITY TABLE 1

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
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Copyright © Telit Communications S.p.A. 2014.

Contents

The aim of this document is to present possible and recommended hardware solutions useful
for developing a product with the Telit LE920 module. All the features and solutions detailed
are applicable to all LE920, where “LE920” refers to the modules listed in the applicability
table.
If a specific feature is applicable to a specific product, it will be clearly highlighted.
NOTICE:
The description text “LE920” refers to all modules listed in the APPLICABILITY TABLE 1.
This document is intended for Telit customers, especially system integrators, about to
implement their applications using our LE920 module.
For general contact, technical support, to report documentation errors and to order manuals,
contact Telit’s Technical Support Center (TTSC) at:
TS-[email protected]
TS-NORTHAMERI[email protected]
TS-LATINAMERI[email protected]
TS-[email protected]
Alternatively, use:
http://www.telit.com/en/products/technical-support-center/contact.php
For detailed information about where you can buy the Telit modules or for recommendations
on accessories and components visit:
http://www.telit.com
To register for product news and announcements or for product questions contact Telit’s
Technical Support Center (TTSC).
Our aim is to make this guide as helpful as possible. Keep us informed of your comments and
suggestions for improvements.
Telit appreciates feedback from the users of our information.

This document contains the following chapters:
Chapter 1: “Introduction” provides a scope for this document, target audience, contact and
support information, and text conventions.
Chapter 2: “General Product Description” gives an overview of the features of the product.
Chapter 3: “LE920 Module Connections” deals with the pin out configuration and layout.
Chapter 4: “Hardware Commands” instructs how to control the module via hardware
Chapter 5: “Power Supply” deals with supply and consumption.
Chapter 6: “Antenna” The antenna connection and board layout design are the most important
parts in the full product design
Chapter 7: “Logic Level specifications” Specific values adopted in the implementation of
logic levels for this module.
Chapter 8: “USB Port”
Chapter 9: “Serial Ports”
Chapter 10: “Audio Section Overview”
Chapter 11: “General Purpose I/O” How the general purpose I/O pads can be configured.
Chapter 12 “DAC and ADC Section” Deals with these two kind of analog converters.
Chapter 13: “Mounting the module on your board”
Chapter 14: “Application Guides”
Chapter 15: “Packing System”
Chapter 16: “Conformity Assessments”
Chapter 17: “Safety Recommendations”
Chapter 18: “Document History”