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1.0 INTRODUCTION 

Thanks for purchasing this digital audio converter from Audio Authority. 
The 979T converts stereo analog audio signals to digital pulse code 
modulated audio signals, and the Model 979R converts digital audio 
to stereo analog audio signals. These products are useful when audio 
equipment to be interconnected does not have matching audio signal 
facilities. These converters are also useful when pre-installed audio 
wiring requires stereo audio to travel over one coaxial cable.

Each converter houses high-performance audio A-to-D or D-to-A circuitry 
in a small, mountable package. The Model 979R accepts 44.1KHz to 192 
KHz PCM audio inputs. Model 979T is factory-set for 48KHz output but 
also allows 96KHz sample rate to be selected by internal jumper.

Audio Authority offers an extensive line of audio and video switchers, 
converters, and distribution amps available for purchase online at 
www.audioauthority.com or through authorized dealers.

1.1 FEATURES 

•  High bandwidth
•  Model 979R accepts either coaxial or optical PCM inputs
•  Model 979T delivers both coaxial and optical outputs simultaneously
•  Nominal digital audio signal is 0.5 volt at 75 ohms
•  Nominal analog audio level is 1 volt RMS
•  Compact form factor: 1.33 x 3.36 x 4.25  (HxWxD, inches)

2.0  CHECKING PACKAGE CONTENTS 

Before attempting to use this unit, please check the packaging and make 
certain the following items are contained in the shipping carton: 

•  Audio Converter
•  12V DC Power Adapter 
•  User Manual 

  Note: Please retain the original packing material in case you need 

to return the unit. If you find any items are missing, contact Audio 
Authority immediately. Have the model number and invoice available 
for reference when you call. 

Содержание 979T

Страница 1: ...User Manual Model 979T and 979R Digital Audio Converters ...

Страница 2: ...t is free of defects Audio Authority cannot be held liable for the use of this hardware or any direct or indirect consequential damages arising from its use It is the responsibility of the user of the hardware to check that it is suitable for his her requirements and that it is installed correctly All rights are reserved No parts of this manual may be reproduced or transmitted by any form or means...

Страница 3: ...y internal jumper Audio Authority offers an extensive line of audio and video switchers converters and distribution amps available for purchase online at www audioauthority com or through authorized dealers 1 1 FEATURES High bandwidth Model 979R accepts either coaxial or optical PCM inputs Model 979T delivers both coaxial and optical outputs simultaneously Nominal digital audio signal is 0 5 volt ...

Страница 4: ... optical or coaxial cables may be used on the digital connections If desired mount the 979R or 979T to a surface using the built in mounting holes The Model 979R accepts common sample rates from 44 1 to 192KHz If the 96KHz sample rate is required from the Model 979T contact Audio Authority Service at 800 322 8346 for instructions Power the converter s from the included 12 volt DC power supply and ...

Страница 5: ...ohms Multi channel No 2 channel PCM only No 2 channel PCM only Frequency Response 44 1 192KHz sample rate 48 96KHz sample rate Agency Approvals FCC CE FCC CE DC Input Connector 5 5 x 2 1mm 5 5 x 2 1mm DC Input Voltage Polarity 12V center positive 12V center positive Max DC Input Current 75mA 75mA Power Supply 571 013 571 013 POWER INDICATOR DIGITAL INPUTS COAXIAL OR OPTICAL ANALOG OUTPUTS RIGHT AN...

Страница 6: ...lied including limitation warranties as to merchantability or fitness for a particular purpose Additionally there are no allowances or credits available for service work or installation performed in the field by the end user 5 1 WARRANTY SERVICE PROCEDURES If you suspect a product defect contact Audio Authority s Technical Service Department at 800 322 8346 or 859 233 4599 for assistance in verify...

Страница 7: ...oHS compliant 7 0 CONTACT INFORMATION If you have questions or require assistance with this product in areas not covered by this manual please contact Audio Authority using the information below Audio Authority Technical Service 800 322 8346 M F 8 30 AM to 5 00 PM EST International 859 233 4599 Fax 859 233 4510 Send email to support audioauthority com Audio Authority Corporation 2048 Mercer Road L...

Страница 8: ...2048 Mercer Road Lexington Kentucky 40511 1071 Phone 859 233 4599 Fax 859 233 4510 Customer Toll Free USA Canada 800 322 8346 www audioauthority com 752 565 7 08 ...

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