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FM

  

Multiplex Decoder 

Installation & User Guide 

 

March, 2013 - Rev. 1 Firmware 

 

www.inovonicsbroadcast.com 

514 

TABLE OF CONTENTS 

Section I  -  INTRODUCTION .............................................1 

Product Description 
Product Features 
Product Specifications 

Section II  -  INSTALLATION AND CONNECTION .............3 

Unpacking and Inspection 
Warranty Registration 
Mounting 
AC Mains Power 
Battery Operation 
Radio Frequency Interference (RFI) 
Headphone Jack 
Rear Panel Connections 

Section III  -  OPERATING THE 514 DECODER ................6 

Program Audio De-Emphasis 
The Front-Panel Meters 
Setting the Input Level With a Tone 
Setting the Input Level With Program Audio 
Status Indicators and Alarms 
Forced-Monaural Operation 

Section IV  -  TECHNICAL MATTERS ................................9 

‘Under the Hood’ 

Summary of Contents for INOmini 514

Page 1: ...NECTION 3 Unpacking and Inspection Warranty Registration Mounting AC Mains Power Battery Operation Radio Frequency Interference RFI Headphone Jack Rear Panel Connections Section III OPERATING THE 514 DECODER 6 Program Audio De Emphasis The Front Panel Meters Setting the Input Level With a Tone Setting the Input Level With Program Audio Status Indicators and Alarms Forced Monaural Operation Section...

Page 2: ...d XLR 200 ohm source impedance 4dBu output at 0dB on front panel meter AES Digital Output Transformer balanced XLR 44 1kHz sampling rate 6dBFS output at 0dB on front panel me ter Headphone Jack 3 5mm TRS for low Z or high Z phones fixed listening level Program Audio De Emphasis 75µs 50µs selected with push on jumpers under the top cover Forced Mono Operation Enabled with a push on jumper under the...

Page 3: ...wo or three INOmini mod ules may share a single supply 4 AC Mains Power All Inovonics INOmini modules are supplied with an out board switching type power supply suited to the destination mains voltage As the actual power consumed by the 514 decoder is 230mA at 12 volts DC a second DC connector on the rear panel of the 514 allows the user to daisy chain INOmini modules This means that two or more u...

Page 4: ...e ca pacity for the modules it must support These power connectors are not a lock ing type and the mating plugs pull out rather easily A Ty Wrap will secure the cables to the plastic anchor above the jacks if this might be an issue 6 Section III OPERATING THE 514 DECODER Program Audio De Emphasis FM stereo broadcasting utilizes complementary pre empha sis transmission and de emphasis reception to ...

Page 5: ...nt method should prove satisfactory Status Indicators and Alarms The series of three LEDs below the INOmini logo indicate status and fault modes MONO and STEREO will toggle to indicate whether the transmission includes the 19kHz stereo pilot tone Nor 8 mally the green STEREO LED will be lighted But if pro gramming is actually being broadcast in monaural or if the transmitter defaults from stereo t...

Page 6: ... said that our policy has always been one of full dis closure We feel that unless we are doing something un derhanded there should never be a reason to hide infor mation from the user With a clear conscience and upon request we will cheerfully provide additional documenta tion and divulge all but the very darkest secrets concerning any Inovonics product Because it is so small and light returning t...

Page 7: ... 11 Nothing to read here either 12 A necessary waste of paper ...

Page 8: ...has been removed or altered III TERMS OF WARRANTY Inovonics Inc products are warranted to be free from defects in materials and workmanship A Any discrepancies noted within THREE YEARS of the date of delivery will be repaired free of charge or the equipment will be replaced with a new or remanufactured product at Inovonics option B Parts and labor for factory repair required after the three year W...

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