User`s manual

AMBE-3000™-HDK Development Board
User’s Manual Version 1.1
Page 3
Connectors, Test Points & IndicatorsSection 2 –
Connectors, Test Points & Indicators
Digital Voice Systems, Inc.
The Speech Compression Specialists
Overview of HDK Interfaces
The AMBE-3000™ HDK is designed with flexibility in mind. It provides a variety of interfaces that allow
for fast and easy integration and testing.
The AMBE-3000™-HDK can be used as a standalone development tool or, be connected to another
AMBE-3000™-HDK via the RS-232 channel interface to demonstrate its capabilities as a full-duplex
real-time communication system.
With a PC the board can encode speech data from the handset, 3.5mm stereo jack (Line In) input
connections, or it can process speech files from a PC (USB connection). When connecting two boards
together the RS-232 interface acts as the channel for the compressed voice serial data bit stream. The
RS-232 Channel I / O is an asynchronous serial interface that uses a protocol designed by DVSI.
Figure 1 Basic block diagram of the AMBE-3000™ HDK board
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