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FAA20 Embedded NEXCOM Vocoder

Board Manual

This manual has been prepared for the Federal Aviation Administration.

FA100-00107 (March 2004) – Rev 1.0.0 Page 1

1.0 INTRODUCTION

This document provides the information needed to integrate and operate

the FAA20 embedded NEXCOM vocoder.

1.1 Purpose and Scope

This document serves the following purpose:

• Describes FAA20 integration and operation

This manual covers hardware revision B. While the FAA20 software is

designed to run on both platforms (revision A and revision B), there are

minor differences in control bits and interfaces. Revision B has a larger set

of discrete control/status signals and supports a higher serial port data rate.

The board revision level is indicated the printed circuit board (PCB)

silkscreen as part of the board part number. Revision A has the part

number text FA100-00071. Revision B has the part number text FA100-

00071B.

1.2 References

Reference information include:

• DVSI 4.8 kbsp AMBE+TM Vocoder for Air Traffic Communication,

Software Release 1.2.0

1.3 Notational Conventions

While reading this manual, the following notational conventions should be

observed:

• Command Entry. This manual describes terminal commands. All

terminal commands and responses are shown in courier font.

Although all commands in this manual are shown without the

necessary trailing carriage return, i.e., the user must press the Enter

key to issue the command.

1.4 Document Organization

This document contains the following sections:

• Introduction. This section provides introductory material.

• General Description. This section provides a brief overview of the

FAA20 and includes a list of features.

• Connectors, Controls, and Indicators. This section provides signal

pinouts and descriptions for all FAA20 connectors and also

describes the operation of FAA20 switches and LEDs.

• Installation. This section provides integration guidance.

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Digital Voice Systems VC-20-ATC-10B Especificaciones Pagina 7