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H I G H L I G H T SDigital audio codec/multiplexer for satellite uplinksSingle rack unit height means more uplink channelsof audio using less equipment space

True, automatic backup protection for your networkAccepts analog or digital A ES/EBU input

O V E R V I E W

The Radyne ComStream DAC700 audio codec/multiplexer isthe most efficient, flexible, and compact digital audio encoder onthe market. The DAC700 accepts analog or digital audio input,then uses ISO/MPEG Layer II compression to digitally encode theaudio, reducing your recurring transmission costs and deliveringaudio at CD quality. Radyne ComStream was the first to marketwith products using MPEG II, which has become the industry

standard, and is backed by the International StandardsOrganization (ISO).

The innovative DAC700 is both integrated and compact. Thereduced size allows more channels of audio in each standardrack a maximum of eight channels instead of only four per rack. The integrated design of Radyne ComStreamsDA C700 means that a spare channel can automaticallyconfigure itself to match any online audio channel. True,automatic backup can be built into your network.

The DAC700 accepts input at eight different operating ratesto let you set a balance between transmission costs and audioquality. Use higher data rates for high-quality stereo output, oruse lower rates if the application requires only lower-qualitysound. In addition, the encoder multiplexes relay que signalsand user data (up to 9600 bits per second) into the output tohelp you build automated audio networks and distributeinformation to remote locations.

DAC700Audio Codec/Multiplexer

To build the DAC700 into a complete digital audio satellite uplink,simply add a Radyne ComStream CM701 satellite modem, anRF transmitter, and an antenna. Many users install the DAC700encoder at the audio source, with the modem and satellite

transmitter (at another location) linked to the encoder by fiberoptics, ISDN lines, or microwave.

The DAC700 can also be set up as a full-duplex codec forpoint-to-point transmission using a DA C700 at each end of thelink. A udio and data can be transmitted and controlled in bothdirections simultaneously.

The ISO/MPEG encoding is implemented by software, so anyMPEG upgrades are easily and cost-effectively incorporated intoRadyne ComStream products.

A P P L I C AT I O N S

Radyne ComStream digital audio networks are in use in more than50 countries, sending audio information to customers of suchdiverse businesses as:

National radio networks, including multiple channels fordifferent languagesAutomated commercial radio distribution networksInteractive audio information, or audiotex networksIn-store audio networks for retailers with regional advertising

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