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Section II 

INSTALLATION AND CONNECTION 

Unpacking and Inspection 

Immediately upon receipt of the 514 decoder, inspect for 

any possible shipping damage.  If damage is found or sus-

pected, notify the carrier at once, and then contact Inovon-

ics. 
We recommend that you set aside the original shipping car-

ton in the event that return for Warranty repair is required.  

Shipping damage sustained as a result of improper packing 

for return may invalidate the Warranty! 

Warranty Registration 

Please complete the Warranty Registration process.  Not on-

ly does registration assure coverage of the equipment under 

terms of the Warranty (printed inside the back cover of this 

manual), but the user automatically receives any specific 

service and modification instructions, including software or 

firmware updates.  Register online at: 

www.inovonicsbroadcast.com/product-registration 

Mounting 

The Model 514 decoder is packaged in a compact ‘clamshell’ 

chassis that defines the standardized Inovonics’ INOmini 

module.    The  514  may  simply  be  set  on  top  of  an  existing  

piece of rack-mounted equipment, as long as at least 1U of 

panel space is left open above the rack-mounted ‘host’ to 

access the decoder.  Alternatively, a pair of mounting holes 

on  the  chassis  base  allows  the  514  to  be  fastened  to  any  

convenient surface with two #4 screws. 
An optional rack-mount kit is available for the 514, which 

can house up to three INOmini modules.  The kit comes 

with blanking panels for unused spaces, and with two ‘dai-

sy-chain’  power  cables  so  that  two  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 units may 

be fed from the same AC supply, but with the caution that 

the total input power specification of a given assortment of 

INOmini modules must not exceed the current rating noted 

on the power supply label. 

Battery Operation 

The 514 decoder may optionally be powered by either a wet 

or a sealed (gel) 12-volt lead/acid battery.  The nominal in-

put voltage should never exceed 15V, and protection should 

be afforded against voltage surges from charging circuits. 

Radio Frequency Interference (RFI) 

Although we have anticipated that the 514 decoder will be 

used  in  a  radio  broadcasting  environment,  please  do  prac-

tice reasonable care in locating the unit away from abnor-

mally high RF fields. 

Headphone Jack 

The  front-panel 

PHONES

 jack will accommodate stereo 

headphones of virtually any impedance with a 3.5mm stereo 

plug.  The listening level is not adjustable.

 

Rear Panel Connections 

COMPOSITE/ 

MPX INPUT 

This  unbalanced-bridging  rear-panel 

BNC connector accepts a composite/ 

multiplex input signal with a minimum 

peak-to-peak (p-p) value of 0.5V. 

G  +9  A  P 

These  are  alarm  “tally”  outputs  for  re-

mote indication of fault conditions.  

Designations are also noted on the rear 

panel and stand for Ground, +9  DC 

volts, Audio Loss and Pilot Loss. 
The two alarm outputs are the collec-

tors of NPN transistors that saturate to 

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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