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Telos Zephyr Xstream Two-Way Radio User Manual

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USER’S MANUAL

Section 1: QUICK RESULTS

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connectorslabeled“OUTPUTS:RECEIVEFROMNETWORK.”Ifyouarenotcertainabouthowto

makethisconnection,refertoSection3.



Livewire

TM

IfyouarealreadyfamiliarwithAxia’saudionodes,youmightthinkofthisnewversionofthe

ZephyrXstreamasan“original”Xstreamcodecwitha2x2nodeonthefrontofit.TheLANport

willbeusedforallLivewireaudioconnectionsinandoutofthecodec.AswithallLivewir

e

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

devices,theLivewirestreamsbeingdeliveredtothenetworkrequireuniqueIDnumbers.



Thetwomostimportantconceptstounderstandare:



1. TheLivewire

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destinationsdeliveraudiototheinputstotheXstreamcodec.



2. TheoutputsoftheXstreamcodec(HybridChannels)willbecomethecodec’sLivewire

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

sourcestoyourAxiaLivewirenetwork.



Thevirtual2x2node,incombinationwiththecodec,hassomeuniquemono/stereofeatures:

• Ifthestreambeingreceivedbythecodecisstereo‐bothcodecoutputs(Livewire

sources)willbestereowithbothdeliveringidenticalstereostreams.

• Ifthestreambeingreceivedbythecod

ecisdualmono(suchasG.722),thedecoded

audioissplitbetweenthetwoLivewire

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sources.ThefirstsourcehastheAmonofeed

replicatedonbothleftandrightchannels.ThesecondsourcehastheBmonofeedon

bothchannels.Thus‐whenyouareusingdualmono,youwillusebothcodecoutputs

asindependentLivewiresources.

• Remember,Livewire

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streamsarealwaysstereo.Inthecaseofamonosourceas

describedabove,themonodataissimplyreplicatedonbothleftandrightchannels.

• Dual/MonoTRANSMITworksonlyinLayer3Dual/Monomode.InLayer3Dual/Mono

transmit;theleftchannelofthefirstdestinationisusedtocreat

ethe“ChannelA”mono

feedtobesentoverISDN.Theseconddestinationisusedforthe“ChannelB”mono

transmitfeed.Therightchannelofeachofthosestreamsisignored.





AWordaboutLivewireCodecBackfeeds



BackfeedstoacodecintheLivewire

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worldarealwaysstereo.Bydefault,therightchannelof

thebackfeedisaL/Rmonosumoftheconfiguredprogramsource(usuallyPGM1).Theleft

channelisthesamePLUStalkback.Theleftchannelprogramcanbedimmedormutedwhen

talkbackispresent.

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