The Best-Selling Digital Broadcast Product Ever?

Quite possibly. With Zephyr, Telos invented the ISDN transceiver, so it's not surprising that the original Zephyr became the worldwide standard for  sending high quality audio over ISDN. Integrating advanced audio coding and digital telephone technologies in a single unit, Zephyr has become the broadcaster's choice for news, sports, music, and production. 

And it's easy to use: Zephyr makes transmitting CD-quality audio as easy as sending a fax! Once programmed, anyone can Auto-Dial ISDN calls. Not sure what to do next? Press the HELP button for plain English information.

Zephyr can transmit two-way, 20kHz stereo audio plus ancillary data virtually anywhere in the world using just a single ISDN circuit. And it can transmit 15kHz mono audio using only one of an ISDN line's two channels. Zephyr was first to introduce ISO/MPEG Layer III -- MP3 -- to broadcasters, and it's now the accepted  standard for coding audio signals for transmission. To most listeners, the coded/decoded audio cannot be distinguished from the source.

In addition to Layer III, Zephyr incorporates ISO/MPEG Layer II and G.722 coding schemes. Because it communicates with so many codecs from other manufacturers, Zephyr lets you connect to more sites than any other product via digital phone lines. Coding on the transmit and receive paths can be independently selected from the three offered schemes for the optimum compatibility and performance.

Features And Benefits:

• World's most widely used ISDN transceiver assures you of quick, easy connections to virtually everywhere.

• Built-in ISDN terminal adapter is compatible with US and Euro-ISDN systems. 

• Fifty user-programmed auto-dial sets that include codec section settings and local ISDN line information along with the remote numbers you wish to dial.

• Bidirectional RS-232 serial data at 9600bps for communications and control.

• Four end-to-end parallel "contact closures" for control of recorders and other devices.

• Logic output provides an in-use indicator when an ISDN line is connected and an alarm when the ISDN connection is terminated.

• Selectable input audio limiter prevents your audio from distorting when your talent screams.

• Optional AES/EBU digital I/O module provides maximum flexibility for connection with digital studio equipment. Sample rate conversion is available on both input and output paths.

• Optional data port with V.35 and X.21 network interfaces to connect to external terminal adapters and CSU/DSUs for Switched 56, fractional T1, and other applications. 

Zephyr is an integral part of daily operations at ABC Radio Networks. Click here to read more.

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