Table of Contents
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About This Guide
This Modemulator User Guide contains operating instructions for the USRobotics Courier Modemulator. It
describes the characteristics of the Modemulator when operating in Modemulator mode. For guidance on
the Modemulator operating in Gateway mode, refer to the
Chapter 1
summarizes some of the key features of the Modemulator, and presents its external interfaces.
Chapter 2
explains how to verify that the Modemulator is operational and how to test the cellular
connectivity before installing the Modemulator into specific deployments.
Chapter 3
shows the intended applications of the Modemulator, and describes its operation in those
applications.
Chapter 4
is a detailed listing of the Modemulator command set with examples of command usage.
Chapter 5
lists Modemulator technical specifications.
Symbols Used In This User Guide
This symbol invites the User to read more technical details.
This symbol identifies helpful User information.
This symbol warns the User to stop, read, and understand critical information.
This symbol denotes supplemental information.
Modemulator User Guide
USR3520/USR803520 Gateway User
Page 7 of 113
Guide.
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Table of Contents
