International Communications Group, Inc.
User’s Guide and Installation Manual
Sigma
7
Aviation Telephone Handset
Sigma
7
vii
April 2006
Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Foreword
1. About This Manual
This manual presents the instructions for using and installing the Sigma
7
telephone handset on
aircraft. For convenience and ease of use, this document is divided into two major sections.
General information is in the User’s Guide that follows the front matter; that information targets the
casual user or cabin personnel. Detailed installation instructions can be found in the Installation
Manual section; that information is geared to installation personnel.
A convenient reference guide to abbreviations, acronyms, and symbols used in the text is in the
Glossary at the back of this document. Specialized terms will generally be written out everywhere in
the text to avoid confusion. Standard, well-known electronic terms and circuit signal names will be
abbreviated in the text without being defined. Also, a fairly comprehensive International Country
Code Directory is at the back of this manual.
Customer Support at ICG welcomes your questions, comments, and corrections about this manual.
In any correspondence, we would appreciate the publication number, equipment designations
(found on the Sigma
7
handset), document page or figure number, and your comments. Please send
your communication to the following address:
Customer Support
International Communications Group, Inc.
Newport News, VA 23603
2. The Sigma
7
Handset
The Sigma
7
telephone is an aeronautical Communications Center handset designed to operate as a
standard and familiar telephone. The Sigma
7
is similar in operation to an office or residential
telephone. The device accommodates various mounting methods and has features similar to those
found on contemporary telephones. Facilities such as a Liquid Crystal Display (LCD) and built-in
magnetic stripe reader provide convenient operation and support for all types of calling services.
The handset also facilitates data port connectivity for modem or Ethernet as an optional
configuration.
Summary of Contents for Sigma7
Page 2: ......