Martin Audio U-Hub User manual

User Guide
U-Hub
Ethernet to U-NET™ Bridge
V1.0 Nov2018

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U‐Hub USERGUIDE
U‐HubUserGuideV1.0 1
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MartinAudioU‐HubUserGuide
Contents
MartinAudioU‐HubUserGuide......................................................................................................................................................1
Contents...........................................................................................................................................................................................1
IMPORTANTSAFETYINSTRUCTIONS................................................................................................................................................3
CONSIGNESDESÉCURITÉIMPORTANTES.........................................................................................................................................4
AVERTISSEMENTDESECURITE.....................................................................................................................................................4
AVERTISSEMENTDESECURITE.....................................................................................................................................................4
AVERTISSEMENTDESECURITE.....................................................................................................................................................4
COMPLIANCE....................................................................................................................................................................................5
FORCUSTOMERSINEUROPE........................................................................................................................................................5
FORCUSTOMERSINTHEUSA.......................................................................................................................................................5
FORCUSTOMERSINCANADA.......................................................................................................................................................6
ThanksandUnpacking......................................................................................................................................................................7
UnpackingtheMartinAudioU‐Hub.............................................................................................................................................7
INSTALLATIONINSTRUCTIONS..........................................................................................................................................................7
MechanicalInstallation.................................................................................................................................................................7
ACPowerConnection...................................................................................................................................................................8
TheUserGuide.................................................................................................................................................................................9
IntroductionandKeyFeatures.......................................................................................................................................................10
Introduction................................................................................................................................................................................10
KeyFeatures...............................................................................................................................................................................10
U‐NetConnections.....................................................................................................................................................................10
BlockDiagram.............................................................................................................................................................................11
SystemExample..........................................................................................................................................................................11
AudioConnections..........................................................................................................................................................................13
InputConnections......................................................................................................................................................................13
Usingunbalancedconnections...................................................................................................................................................13
U‐HubNetworkConnections......................................................................................................................................................14
PanelLayouts..................................................................................................................................................................................15
RearPanel.......................................................................................................................................................................................16
Introduction....................................................................................................................................................................................17
ConnectPowertotheU‐Hub......................................................................................................................................................17
ConnectallinputandNetworkcables........................................................................................................................................17
IPSelection.................................................................................................................................................................................17
IPReset.......................................................................................................................................................................................17
Accessories.....................................................................................................................................................................................18

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U‐Hub USERGUIDE
U‐HubUserGuideV1.0 2
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Cables.........................................................................................................................................................................................18
Adaptors.....................................................................................................................................................................................19
Audio/U‐NetSplitter...................................................................................................................................................................19
Vu‐Net............................................................................................................................................................................................20
Introduction................................................................................................................................................................................20
Menus.........................................................................................................................................................................................20
Windowcomponents.................................................................................................................................................................21
WorkingOffline..........................................................................................................................................................................36
DeviceDiscovery.........................................................................................................................................................................36
DeviceID.....................................................................................................................................................................................43
RightClickmenu.........................................................................................................................................................................44
IPSettings...................................................................................................................................................................................45
TechnicalSpecifications..................................................................................................................................................................47
General.......................................................................................................................................................................................47
RearPanel...................................................................................................................................................................................47
FrontPanel.................................................................................................................................................................................47
Physical.......................................................................................................................................................................................47
TechnicalDrawing..........................................................................................................................................................................48
Warranty.........................................................................................................................................................................................49
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U‐Hub USERGUIDE
U‐HubUserGuideV1.0 3
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IMPORTANTSAFETYINSTRUCTIONS
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1. Readtheseinstructions.
2. Keeptheseinstructions.
3. Heedallwarnings.
4. Followallinstructions.
5. Donotusethisapparatusnearwater.Apparatusshallnotbeexposedtodrippingorsplashingandnoobjectsfilledwith
liquids,suchasvases,shallbeplacedontheapparatus.
6. Cleanonlywithdrycloth.
7. Donotblockanyventilationopenings.Installinaccordancewiththemanufacturer'sinstructions.
8. Donotinstallnearanyheatsourcessuchasradiators,heatregisters,stovesorotherapparatus(includingU‐Hubs)that
produceheat.
9. Donotdefeatthesafetypurposeofthepolarizedorgroundingtypeplug.Apolarizedplughastwobladeswithone
widerthantheother.Agroundingtypeplughadtwobladesandathirdgroundingprong.Thewidebladeorthethird
prongareprovidedforyoursafety.Iftheprovidedplugdoesnotfitintoyouroutlet,consultanelectricianfor
replacementoftheobsoleteoutlet.
10. Protectthepowercablefrombeingwalkedonorpinchedparticularlyatplugs,conveniencereceptaclesandthepoint
wheretheyexitfromtheapparatus.
11. Onlyuseattachments/accessoriesspecifiedbythemanufacturer.
12. Useonlywiththecart,tripod,bracketortablespecifiedbythemanufacturer,orsoldwiththeapparatus.Whenacart
isused,usecautionwhenmovingthecart/apparatuscombinationtoavoidinjuryfromtip‐over.
13. Unplugthisapparatusduringlightningstormsorwhenunusedforlongperiodsoftime.
14. Referallservicingtoqualifiedservicepersonnel.Serviceisrequiredwhentheapparatushasbeendamagedinanyway,
suchaspower‐supplycableorplugdamaged,liquidhasbeenspilledorobjectshavefallenintotheapparatus,this
apparatushasbeenexposedtorainormoisture,doesnotoperatenormally,orhasbeendropped.
SAFETYWARNING
Donotremoveanycovers,loosenanyfixingsorallowitemstoenteranyaperture.
SAFETYWARNING
Therearoftheproductmaygethot.Avoiddirectskincontactduringoperationandforatleast5minutesafterpowerhasbeen
isolated.
SAFETYWARNING
Theproductmustonlybepositionedatfloorlevelwhenoperatedinahorizontalposition.
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U‐Hub USERGUIDE
U‐HubUserGuideV1.0 4
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CONSIGNESDESÉCURITÉIMPORTANTES

1. Lisezcesinstructions.
2. Conservezcesinstructions.
3. Respecteztouslesavertissements.
4. Suiveztouteslesinstructions.
5. Nepasutilisercetappareilprèsdel'eau.L'appareilnedoitpasêtreexposéàdesgouttesoudeséclaboussuresetaucun
objetcontenantdesliquides,telsquedesvases,nedoitêtreplacésurl'appareil.
6. Nettoyeruniquementavecunchiffonsec.
7. Nepasbloquerlesouverturesdeventilation.Installerconformémentauxinstructionsdufabricant.
8. Nepasinstallerprèsdesourcesdechaleurtellesqueradiateurs,registresdechaleur,poêlesouautresappareils(y
comprislesamplificateurs)quiproduisentdelachaleur.
9. Nesupprimezpasledispositifdesécuritédelafichepolariséeoumiseàlaterre.Unefichepolariséepossèdedeux
lamesdontl'uneestpluslargequel'autre.Uneprisedeterreaeudeuxlamesetunetroisièmebrochedeterre.Lalame
largeoulatroisièmebrochesontfourniespourvotresécurité.Silafichefournienerentrepasdansvotreprise,
consultezunélectricienpourremplacerlapriseobsolète.
10. Protégerlecordond'alimentationsoitécraséoupincé,particulièrementauniveaudesfiches,desprisesetlepointoù
ilssortentdel'appareil.
11. Utilisezuniquementlesaccessoiresspécifiésparlefabricant.
12. Utilisezuniquementlechariot,letrépied,lesupportoulatablespécifiésparlefabricant,ouvenduavecl'appareil.
Quandunchariotestutilisé,soyezprudentlorsquevousdéplacezl'ensemblechariot/appareilafind'évitertoute
blessureencasdechute.
13. Débranchezcetappareilpendantlesoragesoulorsqu'iln'estpasutilisépendantdelonguespériodesdetemps.
14. Adressez‐vousàunpersonnelqualifié.Uneréparationestrequiselorsquel'appareilaétéendommagédequelque
façonquecesoitlecordond'alimentationoulaficheendommagé,duliquideaétérenverséoudesobjetssonttombés
dansl'appareil,cetappareilaétéexposéàlapluieouàl'humidité,nefonctionnepasnormalement,ous'ilesttombé.
15. Ledispositifnedoitpasêtreexposéàdesgouttesoudeséclaboussuresetaucunobjetremplideliquides,telsquedes
vases,doitêtreplacésurl'appareil.
16. Déconnexionpermanentedel'alimentationsecteurdoitêtreatteintensupprimantleconnecteurducordonfournià
l'arrièredel'unité.Ceconnecteurdoitêtrefacilementutilisable.
AVERTISSEMENTDESECURITE
Neretirezpaslescouvercles,nedesserrezpaslesfixationsetnelaissezaucunepièces'introduiredanslesouvertures.
AVERTISSEMENTDESECURITE
Leradiateurarrièredecetappareildevientchaud.Eviteztoutcontactdirectaveclapeaupendantlefonctionnementetaumoins
5minutesaprèslamisehorstensiondel'appareil.
AVERTISSEMENTDESECURITE
Leproduitnedoitêtrepositionnéauniveaudusollorsqu'ilestutiliséenpositionhorizontale.
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U‐Hub USERGUIDE
U‐HubUserGuideV1.0 5
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COMPLIANCE
FORCUSTOMERSINEUROPE
ThisproductcomplieswithboththeLVD(electricalsafety)73/23/EECandEMC(electromagneticcompatibility)89/336/EEC
directivesissuesbythecommissionoftheEuropeancommunity.
CompliancewiththesedirectivesimpliesconformitywiththefollowingEuropeanstandards:
EN60065Productsafety
EN55103‐1EMCemissions
EN55103‐2EMCimmunity
Thisproductisintendedforthefollowingelectromagneticenvironments:E1,E2;E3&E4.
THISPRODUCTMUSTBEEARTHED.Useonlyaflexiblecableorcordwithagreenandyellowcorewhichmustbeconnectedto
theprotectiveearthingterminalofasuitablemainsplugortheearthingterminaloftheinstallation.Thecordmustbeamaximum
of2mlong,havea2.5mm2CSA,a300/500VratingandcomplywithEN50525‐2‐11/H05W‐F.
THISPRODUCTISDESIGNEDFORPERMANENTINSTALLATION.Itmustbefittedintoa19”rackenclosureandnotoperatedunless
soinstalled.Therackenclosureshouldbeopenatthefrontandbacktoallowfreeventilationandmovementofairthroughthe
product.
FORCUSTOMERSINTHEUSA
ThisproductcomplieswithUL600657thedition.
THISPRODUCTMUSTBEEARTHED.Useonlyaflexiblecableorcordwithagreenorgreen/yellowcorewhichmustbeconnected
totheprotectiveearthingterminalofasuitablemainsplugortheearthingterminaloftheinstallation.Thecordmustbea
maximumof6’long,be14AWG,havearatingSJ,SJT,SJEor300/500VH05W‐FandbemarkedVW‐1.
THISPRODUCTISDESIGNEDFORPERMANENTINSTALLATION.Itmustbefittedintoa19”rackenclosureandnotoperatedunless
soinstalled.Therackenclosureshouldbeopenatthefrontandbacktoallowfreeventilationandmovementofairthroughthe
product.
DECLARATIONOFCONFORMITYWITHFCCRULES
We,MartinAudioLtd.ofCenturyPoint,HalifaxRoad,CressexBusinessPark,HighWycombe,HP123SL,England,declareunder
oursoleresponsibilitythatthisfamilyofdevices,complieswithPart15oftheFCCRules.Operationissubjecttothefollowing
twoconditions:(1)thisdevicemaynotcauseharmfulinterference,and(2)thisdevicemustacceptanyinterferencereceived,
includinginterferencethatmaycauseundesiredoperation.
FEDERALCOMMUNICATIONSCOMMISSIONNOTICE
AnexampleofthisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigitaldevice,pursuanttoPart
15oftheFCCRules.Theselimitsaredesignedtoprovidereasonableprotectionagainstharmfulinterferenceinaresidentialand
commercialinstallation.
Thisequipmentgenerates,uses,andcanradiateradiofrequencyenergy,andifnotinstalledandusedinaccordancewiththe
instructions,maycauseharmfulinterferencetoradiocommunications.However,thereisnoguaranteethatinterferencewill
notoccurinaparticularinstallation.Ifthisequipmentdoescauseharmfulinterferencetoradioortelevisionreception,which
canbedeterminedbyturningtheequipmentoffandon,theuserisencouragedtotryandcorrecttheinterferencebyoneor
moreofthefollowingmeasures:
Reorientorrelocatethereceivingantenna.
Increasethedistancebetweentheequipmentandthereceiver.
Connecttheequipmenttoanoutletonacircuitdifferentfromthattowhichthereceiverisconnected.
Consultthedealeroranexperiencedradio/TVtechnicianforhelp.
FCCCaution:Anychangesormodificationsnotexpresslyapprovedbythepartyresponsibleforcompliancecouldvoidtheuser’s
authoritytooperatethisequipment.

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 

U‐Hub USERGUIDE
U‐HubUserGuideV1.0 6
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…………
FORCUSTOMERSINCANADA
ThisproductcomplieswithCA/CSAC22.2No.60065‐03
CeproduitestconformeavecCA/CSAC22.2No.60065‐03
THISPRODUCTMUSTBEEARTHED.Useonlyaflexiblecableorcordwithagreenorgreen/yellowcorewhichmustbeconnected
totheprotectiveearthingterminalofasuitablemainsplugortheearthingterminaloftheinstallation.Thecordmustbea
maximumof6’long,be14AWG,havearatingSJ,SJT,SJEor300/500VH05W‐FandbemarkedVW‐1.
CEPRODUITDOITÊTREMISÀLATERRE.Utilisezuniquementuncâblesoupleavecunnoyauvertouvert/jaunequidoitêtre
reliéàlabornedeterredeconnecteurd'alimentationoulabornedeterredel'installation.Lecordondoitêtreunmaximumde
6'(2m)delong,14AWG(2.5mm2CSA),êtreclasséSJ,SJT,SJEou300/500VH05W‐FetêtremarquéeVW‐1
THISPRODUCTISDESIGNEDFORPERMANENTINSTALLATION.Itmustbefittedintoa19”rackenclosureandnotoperatedunless
soinstalled.Therackenclosureshouldbeopenatthefrontandbacktoallowfreeventilationandmovementofairthroughthe
product.
CEPRODUITESTCONÇUPOURUNEINSTALLATIONPERMANENTE.Ildoitêtreinstallédansunboîtierrack19".Lerackdevrait
êtreouvertàl'avantetl'arrièrepourpermettrelaventilationetlemouvementd'airlibreàtraversleproduit.
DECLARATIONOFCONFORMITYWITHCANADIANICES‐003
ThisClassBdigitalapparatuscomplieswithCanadianICES‐003.
CetappareilnumériquedelaclasseBestconformeàlanormeNMB‐003duCanada.
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U‐Hub USERGUIDE
U‐HubUserGuideV1.0 7
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…………
ThanksandUnpacking
ThankyouforchoosingaMartinAudioU‐HubEthernettoU‐Netbridgeforyourapplication.Pleasesparealittletimetostudy
thecontentsofthismanual,sothatyouobtainthebestpossibleperformancefromthisunit.
AllMartinAudioproductsarecarefullyengineeredforworld‐classperformanceandreliability.
IfyouwouldlikefurtherinformationaboutthisoranyotherMartinAudioproduct,pleasecontactus.Welookforwardtohelping
youinthenearfuture.
UnpackingtheMartinAudioU‐Hub
Afterunpackingtheunitpleasecheckcarefullyfordamage.Ifdamageisfound,pleasenotifythecarrierconcernedatonce.You,
theconsignee,mustinstigateanyclaim.Pleaseretainallpackagingincaseoffuturere‐shipment.
INSTALLATIONINSTRUCTIONS
MechanicalInstallation

TheU‐Hubisdesignedtobemountedinastandard19”rackenclosure.
Wheretheprocessorisusedinafixedinstallation,aslongasthebottomunitissupportedandtherearenogapsbetweenunits,
itisacceptabletouseonlythefrontpanel19”rackholeswhenfittingitinastandardrackenclosure.IftheU‐Hubismountedin
amobilerackitisimportantthattherearorsidesaresupportedwithasuitableracksupportbracket.Damagecausedby
insufficientsupportisnotcoveredbythewarranty.
Topreventdamagetothefrontpanelitisrecommendedthatplasticcupsorwashersarefittedunderneaththerackmounting
boltheads.
ItispossibletousetheU‐Hubwithoutventilationgapsbetweenotherrackproductsaslongastherearenoproductswhich
generateextremehightemperatures,Amplifiersforexample.IfU‐Hubsareinthesamerackitisessentialthatadequate
measuresforcoolingareprovidedinaccordancewiththeAmplifiermanufacturersguidelines.Thisshouldensureaminimumof
heattransfertotheU‐Hub.

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U‐Hub USERGUIDE
U‐HubUserGuideV1.0 8
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…………
TheU‐Hubshouldneverbeexposedtorainormoistureduringoperationorstorage.Iftheunitdoescomeintocontactwith
moisture,removetheACpowercableimmediatelyandleaveitinadryandwarmlocationtodryout.
Notethatwhenanyequipmentistakenfromacoldlocationintoahothumidone,condensationmayoccurinsidethedevice.
AlwaysallowtimefortheequipmenttoattainthesametemperatureasitssurroundingenvironmentbeforeconnectingtheAC
powercable.
IMPORTANT
Itistheresponsibilityoftheusertoensurethatdirt,liquidsandvapourfromoil‐basedtheatricalsmoke,hazeorfogmachinesis
notingestedbytheU‐Hub.Damagesocausedisnotcoveredbythemanufacturer’swarranty.
ACPowerConnection
TheU‐HubutilisesastandardIECACpowerconnectorfittedwitharetainingclip.UseonlyanACpowercablewithacorrectly
wiredIECconnectortomaketheconnectiontothemainspowersupply.Thisshouldbecompatiblewiththeretainingclipensure
thattheconnectordoesn’taccidentlydisconnect.
TheU‐Hubisdesignedtooperateon50/60HzACpower.Thepowersupplysectionautomaticallyconfiguresforeither115Vor
230Vnominalvoltageatturnon.TheU‐Hubwilloperateoveranextendedrangeofsupplyvoltages(pleaserefertothetechnical
specifications).
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 
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
U‐Hub USERGUIDE
U‐HubUserGuideV1.0 9
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…………
TheUserGuide
ThisusermanualgivesaprogressivelymoredetaileddescriptionofthefunctionsoftheMartinAudioU‐Hub.Adetailed
explanationofthefrontandrearpanelcontrolsandindicatorsiscontainedinthenextsection.
ThefinalsectiondescribesuseoftheU‐HubwithinMartinAudioVu‐Netsoftware.Thisisanabridgedguidecoveringessential
U‐Hubfunctionality,forfulldetailsofVu‐NetpleaserefertotheVu‐NetUserguidewhichcanbedownloadedfromtheMartin
Audiowebsite.
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U‐Hub USERGUIDE
U‐HubUserGuideV1.0 10
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…………
IntroductionandKeyFeatures
Introduction
TheMartinAudioU‐HubisanEthernettoU‐NETbridgeequippedwithanalogueandAES3digitalaudiotransport.Itfacilitates
PCconnectionandVU‐NET™softwarecontrolofMLASeriesarraysandsubwoofersviatheirinbuiltproprietaryU‐NETnetwork.
KeyFeatures
EthernettoU‐Netbridge
IPaddressable(staticanddynamic)
Analogueanddigitalaudiotransport
DesignedtoworkwithDX4.0loudspeakerprocessorforDante™digitalaudiodistribution
ConvertingTCP/IPtoU‐NETprotocol,U‐HuballowsMLASeriesenclosurestoself‐addressandidentifytheirpositionwithinan
array,aswellassupportingasimple‐to‐useredundantloop.WithU‐Hub,anMLASeriessystemwithonboardU‐NETcanbe
seamlesslyintegratedintoaTCP/IPnetworkandcontrolledviaVU‐NETsoftware.
WhenusedinconjunctionwiththeMartinAudioDX4.0networkedsystemcontroller,U‐Hubcanconnectaudioandnetworkto
anMLASeriessystemwithasinglecableviaaDante™digitalaudionetwork.
U‐NetConnections
TheU‐HubfeaturestwoU‐Netportsandtwopairsofparallellinkstoenableneatlyloomednetworkcablestobeusedgoingto
andfromseveralarrays.TheU‐Netconnectionsareavailableon8‐pinODUconnectors.IncommonwithstandardEthernetdata,
U‐Netonlyusesfouroftheavailable8pinsallowingbalancedanalogueorAESaudiotobefeddowntwoorthe‘spare’cores
thusgreatlysimplifyingsystemwiringasanindependentaudiocableisnolongerrequired.
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U‐Hub USERGUIDE
U‐HubUserGuideV1.0 11
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…………
BlockDiagram
ThisdiagramshowstheessentialfeaturesoftheU‐Hub,highlightinghowtheaudiofeedfromtherearpanelinputsiscombined
ontothreeoftheU‐Netconnections.

U‐Netisrunasaredundantloop,allU‐Netenabledproductshavetwoports.Port1ontheU‐Hubwouldbeconnectedtoport1
onthefirstdevice,port2onthisdevicewouldlinkouttothenextdeviceandsoonwithafinallinkbacktoport2ontheU‐Hub
tocompletetheloop.Thisallowsthesystemtocontinueworkingseamlesslyintheeventofacablebeingdamagedor
inadvertentlydisconnected.Datawillsimplyflowintheoppositedirectiontoallowcontinuouscommunication.
Audioconnectionsarecombinedwiththenetworkfeeds.Audioinput1isconnectedtoapairofspareconnectionsintheU‐Net
port1ODU.Thiswouldusuallybeusedasthe“send”tothefirstarray.Areturnfromthearraywouldbeconnectedtothefirst
linkinconnection.Audio2iscombinedwiththesecondODUinthelinkedpairallowingaudiotobefedtoasecondarray,aside
hangforexample.Thenetworkreturnfromthisarraycomesbacktothesecondlinkin.Audio3isconnectedtothelinkoutof
thispairandcanbeusedtorouteouttoathirdarraysuchasthesub‐wooferstack.Finally,theU‐Netreturnfromthesubsis
connectedtoU‐Netport2ontheU‐Hubtocompletetheloop.
SystemExample
Thisdiagramillustratesthewiringtothearrayforasystemasdescribedabove(notethatmainsconnectionshavebeenomitted
forclarity);‐

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U‐Hub USERGUIDE
U‐HubUserGuideV1.0 12
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AudioinputcanbedirectfromaconsoleorfromaDX4.0processorusedasamatrix.Threeaudiofeeds–eacheitherbalanced
analogueorAESEBUdigital‐areconnectedtothethreeaudioinputsontherearoftheU‐Hub.
ThefirstoftheseiscombinedontotheU‐NetPort1whichisconnectedtothefirstcabinetofthemainarrayviaaPWAXXXXXU‐
NettoU‐Net+AudioadaptorwhichsplitsthefeedfromtheU‐NetcabletoaU‐NetonlycableandanAESspecaudiocable
terminatedinastandard3‐pinXLR.TheXLRisconnectedtotheaudioinput.Theaudioisdaisychainedbetweencabinetsusing
standardaudiolinkcables.
WhenthefinalnetworkcableisroutedbacktotheU‐Hubitisterminatedusingthefirstofthelinkpairs.Thelinkpairslinkthe
networkconnections(firsttwotwistedpairs)butNOTtheaudiomeaningthatthelinkoutcanbeusedtorouteacompletely
independentaudiofeedconnectedtotheAudio2inputuptothesidehanginthesameway.
Thereturnfromthesidehanggoestothesecondlinkpairinputwiththeoutputalsocarryingaudioinput3tofeedthesubarray.
Finally,thelastnetworkconnectiongoesfromthefinalsubbacktoport2ontheU‐HubtoclosetheU‐Netloop.
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U‐Hub USERGUIDE
U‐HubUserGuideV1.0 13
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…………
AudioConnections
InputConnections
ForeachaudioinputthereisafemaleXLRconnectorforanalogueorAESsignals.
TheHOT,+or‘inphase’connectionshouldbemadetopin2oftheXLRconnector.
TheCOLD,‐or‘outofphase’connectionshouldbemadetopin3oftheXLRconnector.
Pin1oftheXLRconnectorsisinternallyconnectedtothechassis.TheshieldoftheinputcableshouldalwaysbeconnectedPin
1oftheXLRtoensurethatEMCperformanceandregulationsaremet.
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Usingunbalancedconnections
Pleasenotethattheuseofunbalancedconnectionsisnotrecommended,howeverwhenconnectingtheU‐Hubtoanunbalanced
audiosource,thesignalconductorshouldbeconnectedtoXLRpin2.The‘Cold’conductororcablescreenshouldbeconnected
toXLRpin1withashortconnectionmadebetweenpin1andpin3.
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U‐Hub USERGUIDE
U‐HubUserGuideV1.0 14
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…………
U‐HubNetworkConnections
U‐HubfeaturesastandardRJ45EthernetportontherearpanelusingaNeutrikEtherconconnector.Thisiswiredusingthe
standardEthernetwiringprotocolsoanyofftheshelfCAT5EorbetternetworkcablecanbeusedtoconnecttheU‐Hubtoyour
Ethernetnetwork.
TherearetwofrontpanelmountedU‐NetportsforconnectiontotheU‐Netenableddevicesinyoursystem.TheseuseODU
connectorstotheLEMOhighspeeddataseriespattern.Wiringconfigurationisasfollows;‐

ThetwopairsoflinkedODUconnectorsarewiredasshownintheblockdiagram.Pins1,2,3&6arelinkedtogether,pins4and
5onthelinkoutconnectorshavetheaudiosignalfromthecorrespondingaudioinput.
Thesamecablewiringconfigurationshouldbeusedforallnetworkconnections.
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U‐Hub USERGUIDE
U‐HubUserGuideV1.0 15
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…………
PanelLayouts
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1.OnLineIndicator‐IlluminatestoshowthattheU‐HubisconnectedtoanEthernetnetwork
2.IPReset‐ResetsaU‐HubthathasbeenconfiguredforstaticIPbacktodynamic
3.StaticIP‐IndicatesthattheU‐HubhasbeenconfiguredforstaticIP
4.U‐NetStatus‐TheU‐NetLEDwillilluminategreenwhenagoodconnectionismadetoaU‐Net
enableddeviceconnectedtoport1
5.U‐NetConnections‐SixODUconnectorsprovideU‐NetconnectivityconsistingofPort1,port
2andtwolinkedpairs.Port1andthe‘Out’connectionofeachlinkedpairalsocarryaudiorouted
fromtheinputconnectorsontherearpanel.
6.U‐NetStatus‐TheU‐NetLEDwillilluminategreenwhenagoodconnectionismadetoaU‐Net
enableddeviceconnectedtoport2
7.PowerIndicator‐Thisredindicatorislitwhenpowerisapplied
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U‐Hub USERGUIDE
U‐HubUserGuideV1.0 16
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RearPanel
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1.PowerInlet‐ Theunitshouldbeconnectedtoasuitablemainselectricitysupplyusinga
standardIECpowerlead.Thedevicehasaswitchmodepowersupplythatiscapableof
operatingwithanominalmainsvoltageof100Vto230V,50/60Hzwithoutre‐configuration.
TheIECconnectorshouldbecompatiblewiththeretentionclipsoitcanbesecuredwiththe
cliptoensuretheconnectorcannotaccidentallydisconnect.
2.MainFuse‐Thisshouldbefittedwithananti‐surge(T)fuseratedat1amp.
3.Ethernet‐NeutrikEtherconallowinganethernetconnectionusingwitherastandardCAT5E
connectororanEtherconcable.
4.Analogue/AESEBUAudioInputs‐ CarriesaudiofeedtothethreeODUaudiooutputs
combinedwiththeU‐Netnetwork.
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U‐Hub USERGUIDE
U‐HubUserGuideV1.0 17
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…………
Introduction
ConnectPowertotheU‐Hub
ConnectapowersourcetotheU‐HubusinganIECcableandsecureusingtheretainingclip.
ConnectallinputandNetworkcables.
InputcablesshouldbebalancedXLRusing3‐corecablewithashield.MostsignalprocessingandmixingproductsalsouseXLR
connections,sothecablecanbeamaletofemaleXLRor“microphone”cable.
NetworkConnectionsshouldbemadeusingODUU‐NetcablesoradaptorsavailableasaccessoriesfromMartinAudio.
IPSelection
TheU‐HubcancommunicateovertheethernetnetworkwhichhasbeenconfiguredforstaticordynamicIP.Thedefaultis
dynamicIPwherethenetworkhasaDHCPservertoassignindividualIPaddressestoallnodesdetectedonthenetwork.Thisis
extremelystraightforwardforaplugandplaysystemwhichiswhyDomesticroutersareconfiguredtoactasaDHCPserverby
default.StaticIPremovestherequirementforaDHCPserveronthenetworksoisfrequentlythechoiceformoreadvanced
systems.
TheU‐HubcanbeconfiguredforStaticIP,therearetwomethodstoenablethis.Youwillneedtoknowtherangeforallother
productsonthenetworkandassignanIPaddresswrithingthesamerangebutwithanaddressuniquetotheU‐Hub.
YoucanselectthedefaultStaticIPaddressbyusingtheIPResetswitchonthefrontpanel.Pressandholdtheswitchfor
approximately3secondsandtheU‐HubwillbesettoStaticIPwithanaddressof169.254.19.71.Thedefaultaddressgivesyou
theflexibilitytoconnecttotheU‐HubwithouthavingtoadjustyourPCLANsettings,ifthePCisindynamicmodeitwillself‐
assignalinklocaladdressinthe169.254.xxx.xxxdomain.Ifyournetworkisconfiguredforstaticmode,theU‐Hubwillbe
immediatelydiscoverableaslongasyournetworkisinthe169.254.xxx.xxxrangeandaslongasthereisn’tanotherdevicewith
thesameIP.TheprincipalintentionofthismodeistogiveyouimmediateconnectiontotheU‐Hub,soyoucanchangetheIPto
anumberofyourchoice
YoucanalsochangetheIPmodeviaVu‐Net(SeetheVu‐Netchapter)usingtheright‐clickmenu.Notethatifyouareinthe
defaultdynamicmodeandyouchangetoastaticIPaddressoutsidethe169.254.xxx.xxxrangeyouwillloseconnectionwiththe
U‐HubuntilyoureconfigureyourPCtostaticmodeinthesamerange.
WhentheU‐HubhasbeensettostaticIP,eithermanuallyorusingthedefaultstaticIPmode,theStaticIPfrontpanelLEDwill
illuminateyellow.
IPReset
IfaU‐HubhasbeenpreviouslyconfiguredforstaticIPitcanquicklybesettodynamicusingtheIPresetswitch.Theresetisa
recessedfrontpanelswitchashortpresswillreturntheU‐HubtodynamicIPconfiguration.ItcanthenbediscoveredviaVu‐Net
usingDeviceDiscovery,seetheVu‐Netchapterformoredetails.
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U‐Hub USERGUIDE
U‐HubUserGuideV1.0 18
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Accessories
Cables
AfullrangeofU‐NetcablesinvariouslengthsareavailableforconnectionswithinanMLAseriessystem;‐
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AllcablesuseBelden1305AtourgradeCAT5Ecableandfeaturethe8‐pinODUconnectorwhichisfittedwithauniqueover‐
mouldedstrainreliefmakingthemincrediblyrobust.Thepartnumbersareasfollows;‐
800mmPWA00038UsedtolinkbetweenMLAorMLACabinetsinanarray
3mPWA00039UsertolinkMLX,DSXorMSXSubwoofers
5m PWA00051Generalpurposecable,oftenusedtolinkfromaU‐Hubtothefirstsubwooferwheretheracksare
incloseproximitytothesubs
15mPWA00063Generalpurposecable,oftenusedtolinkfromaU‐Hubtothefirstsubwooferinanarray.
35mPWA00040Mostcommonlyusedaspartofanarrayloomtogofromarackuptoaflownarrayandbackandas
cross‐stageEthernetlinks
50mPWA00077Extra‐longArraylooms.
75mPWA00052Suppliedonacabledrum,usedforEthernetconnectiontoFrontofhouseorextra‐longcrossstage
Ethernetlinksonlargefestivalstages.
125mPWA00041Suppliedonacabledrum.125misthemaximumcablelengthbetweennodesonaU‐Netnetwork
socanbeusedfortheultimatearrayloominsituationswherethecablepickhastobevirtuallyinvisibleandthereforeislikely
tobeparticularlylong.
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U‐Hub USERGUIDE
U‐HubUserGuideV1.0 19
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Adaptors
Thereareseveraladaptorsavailabletoassistwithcablingupasystem;‐

PCX00048ThisisaU‐Netcouplerforextendingcables.ItishousedinaNeutrikDshellBarrellandhasanODUconnectorat
eachendwiredtogether.
PCX00043ThisishousedinanidenticalNeutrikhousingtotheU‐NetcouplerbuthasanEtherConconnectoratoneendand
ODUconnectorattheother.ThisallowstomixthecableinfrastructurebetweenODUcablesandlowcostCAT5Ecablewhich
wouldbeamorecost‐effectivesolutionforinstalledsystems.
PWA00056Thisisa10mCAT5EcableterminatedoneendinanODUconnectorandtheotherinanRJ45connector.Asabove
thisoffersacost‐effectivesolutionforcertainapplications.
Audio/U‐NetSplitter
TheU‐Hubaudiointegrationfeatureswillallowaudioandnetworksignalstobefedtoanarrayusingasinglecable.Tosplitthe
combinedU‐NetandaudiosignalsthededicatedadaptorassemblypartnumberPWAxxxxxisused.

ThisreceivesthecombinedU‐NetandaudiofeedfromtheU‐HubandsplitsitintoindependentODUandXLRcablestoconnect
totheU‐NetportandaudioinputonallMLAseriesproducts.
 