Linortek Netbell-NTG User manual

NETBELLNTGWIRINGInstructions
1
WIRINGTHENETBELLNTG
TheNetbellNTGunitisaselfcontainedwebserverconfiguredwithvariousinputandoutputcircuitsdesignedtooutputanaudio
signaltoaPAsystem.YoushouldnotusevoltagesthroughtheNetbellNTGproductexceeding48volts.ITISNOTSAFE.
1.Connectthe12VDCpowersupplytoasuitableACoutletandscrewthepositivewireintotheterminallabeled12VDCandthe
negativeleadintotheterminallabeledGND.
2.PluganInternetcableintotheRJ45/NETconnector.
3.Hookupthelinein/outtotheterminalifusingalinedrivenspeaker/PAsystem.Connectiontoanamplifiermaybeneccesaryif
drivingdemandingspeakers,refertotheamplifierdirectionsforconnectionsifneccesary.
4.Ifusingastandard3.5mmaudiojackplugtheinputjackforthespeakersintotheoutputjackontheNetbellNTGboard.
5.TheSDcardslotreaderislocatedinsidetheenclosure,removethelidtobeabletoaccesstheSDcardreader.Weinstalla
1GBMicroSDcardfromthefactory,howeverifyouneedmorestoragealargerMicroSDcardcanbeused
TheoutputratingsfortheNetbellNTGarea30ohmimpedanceat70mAmaximum,anda2.1Vaudiosignal.Pleasenote
thattheheadphonejackoftheNetbellNTGoutputsinDCvoltage,andisnotsuitabletobewiredintoapoweramplifierthatuses
ACvoltageonitsinputline,itisnotsafeandcandestroytheproduct.Thelineoutputfromtheterminalissuitedforthisandcanbe
wireddirectlytoapoweramplifierthatusesACvoltage.Takenoteoftheohmratingsofyourspeakersandhowtheyarewired,
makesureyouusethefollowingcalculationtodetermineifyouarewithintheamplifiersimpedanceratings.
Rrepresentstheimpedance(ohms)
TheNetbellNTGhasastereolineout,aterminalblockwithleftandrightoutputs,whichcanbeconnectedtoapoweramplifierfora
highervolumeortheabilitytodrivelargerspeakers.Makesuretheamplifierhasastereolineinput,andisratedtodrivethe
speakersyouwishtoconnecttoo.Wearenotresponsiblefor3rdpartyamplifiersorspeakersconnectedtoourdevice,orthefailure
ofourNetbellNTGwhenwiredincorrectly.
Weprovide3cabletypes(RVAstereotolineout,3.5mmstereotolineout,anda2plystrandedwireforlinein/line
out)toconnectyourNetbellNTGtoanamplifierorPAsystem,ect.Choosethecablethatmatchesyouramplifiers
audioinputtobeabletowireittoyourNetbellNTG.
ThankyouforpurchasingLinortekNetbellNTGtonergeneratorandcontroller.Allofourcontrollerscomecompletewithallpartsand
softwarenecessaryforinstallation,operationandabilitytocontrolthedevicesattachedtoit.Uponarrival,pleaseinspectthe
contentsoftheboxtoensurethatyourkitiscompleteandcontainsallnecessarycomponents.
Eachproductkitboxcontainsthefollowing:
____OneNetbellNTGSERVER
____3ftdualRCAaudiocable
____3ft2plystrandedwire
____3ft3.5mmStereocable
____One12VDCPowerSupply
____One3meterCAT5cable
____NetbellNTGWiringInstruction
____NetbellNTGSoftwareProgramInstruction
____NetbellSettingInstructions
Forcompleteproductdocumentation,currentsoftware,webpagesandvariousutilities,visit
https://www.linortek.com/downloads/.Theproductmanual,aswellassoftwareupdates,areavailablefordownload.

2
BOARDLAYOUTREFERENCE
ThisisaimageofabareboardNetbellNTG,itexplainstheinputsandoutputsofthedeviceandtheratingsforeach.Wesupplya
1GBMicroSDcardwiththeadapte,andwillbeenoughforover10hoursofaudioplayback,ifmoreisdesiredalargerMicroSDcard
canbeeasilyinstalled.Thelineoutisdividedintoleftandrightforstereosoundandcanbeusedwithanamplifier,ithasa30
ohmimpedancerating.DonotconnecttheaudiojackoutputdirectlywithanACamplifier,itWILLshortoutyourboard.A
12VDCpowersupplyisprovidedwiththeboard,itisalsoPOE(PowerOverEthernet)capable.
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1.MicroSDcardslot
2.AudioModule
3.Lineout(stereo,30ohmsimpedanceratingat70mAmaxand2.1V)
4.3.5mmAudioJack(doNOTconnectdirectlytoanamplifierthatusesAC,usesDCvoltage)
5.DigitalInputs(#1islocatedatthetop)
5VDC48VDC
12VDC48VDCmustusetheexternalresistorprovided
6.Relayoutputs,12VDC5A,24VDC3A,48VDCmax.
7.Digitalinputswitches(theorderis4,3,2,1fromlefttoright)
8.RJ45Connector
9.PowerConnector(12VDC)
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3
POWERCONNECTION
TopowertheNetbellNTGconnectthepowersupplytothe12VDCandGNDpowerterminal,unlessyouareusingPOEthenjust
connecttheethernetcabletothePOEswitch.
Whenconnectingthepowersupply,connectthepositivewireofthe12VDCpowersupplytothe12VDCterminal,nagetivecable
(markedwithawhitestripe)totheGNDterminal.PlugthepowersupplytoasuitableACoutlet.Atthispoint,theGREEN/BOOTLED
lightontheboardshouldcomeonandstartflashing,indicatingthattheNetbellNTGisoperatingandisinthe"BootloadMode".
Afterabout5seconds,theGREENLEDwillgooffandtheREDLEDwillstartblinking,indicatingtheNetbellNTGisoperatingin
"ServerMode"anditisaccessibleonanetworkutilizingTCP/IPprotocols.
ETHERNETCONNECTION
PlugtheInternetcableintotheNETconnector.The"Connection"LEDlightontheboardwillcomeonifa100MHznetworkis
available,otherwiseitwillberemainoffandthe"Activity"LEDshouldstartblinkingindicatingnetworkactivity.
AUDIOOUTPUTCONNECTION
1.ThemostcommonaudioinputforamplifiersareanRCAconnection,makesureyouwiretheWHITEconnectortotheLFTline
outterminalblock(theWHITEwireonourprovidedcable)andtheREDconnectortotheRGTlineoutterminalblock(theRED
wireonourprovidedcable).ThebarecopperwiresarealwayswiredintotheGNDterminalposition.
2.Ifyouramplifierusesa3.5mmstereoaudiojackthetheinputthenusetheprovided3.5mmstereotolineoutcable.The
WHITEwireistobewiredintotheLFTterminalposition,theREDwireistobewiredintotheRGTterminalpositionandthe
barecoppergroundwirecanbewiredintoeitheroftheGNDterminalpositionsontheLINEOUTterminalblock.
3.Ifyouramplifierusesanaudiolineinputthenusethetwoprovided18gauge2plycable.Asthewiresforthe2plycablewillbe
thesamecolorforbothleftandrightsides,wiretheleftsidefirstthenoncecompletedwiretherightsidetoavoidcrossingthe
input/outputs.UsetheblackwiresfortheGNDpositionsandtheredwiresfortheLFTandRGTpositionsforeachrespective
input/output.
RELAYOUTPUTCONNECTION
Therearetworelayoutputsontheboard,theyaredrycontact(48Vmax5A@12VDC,3A@24VDC).Thereare3terminalsforeach
relay,labelledNO,CandNCwhichstandforNormallyOpen,CommonandNormallyClosed.Thephysicalbells/buzzersshould
beconnectedtotheCandNOterminals.
Whenwiringphysicalbellsorbuzzerstotherelayoutput,youneedtoselectasuitablepowersourcethatmeetstherequirementsof
thebellorbuzzer.Wireonesideofthepowersourcetoonesideofthebell.Theotherpowerwireisconnectedtotherelayterminal
C,finalconnecttheothersideofthebellwiretorelayterminalNO.
DIGITALINPUTCONNECTION
Thereare4digitalinputs(548VDC)builtontheboardfortriggeringspecialnotifications/emergencyalerts,asensorsuchas
temperaturesensororapushswitchcanbeconnectedtothedigitalinput.Pleasenote,whenconnecta12VDC48VDCsensortothe
input,anexternalresistor(provideduponrequest,2.2kohm0.5watt)mustbeused.Therearetwomodesofoperationforthedigital
inputs,PULLUPandISOLATED.ThePULLUPmodeconnectsa1Kresistortoaninternalvoltageallowingyoutouseasimpleswitch
(suchasamagneticdoorswitch)accrossterminals1and2.Whentheswitchisactivatedasignalissenttotheinput.Theother
methodallowsyoutodirectlydrivetheNetbellNTG'soptoisolatorwithanexternalvoltagethoughandinternal1Kresistor.This
voltagemaybeintherangeof5VDCto48VDCsupplyingaminumumof2mAoramaximimof30mAtotheoptoisolatordiode.
Thereisnootherinternalconnectiontothisvoltagesoitisanisolatedinput.
Thismodeisselectedbytheswitchontheserver(seetheboardlayoutforreference)markedISOandPUforisolatedorpullup
respectively.OntheNetbellNTGputtheswitchupforpullupanddownforisolated.
TwonotesofCAUTION:1.)Theseunitsaregroundisolated.AlwaysconnectsothatpowerloopisonlyconnectedtotheNetbell
NTGunit.DoNOTuseexternalgroundconnections.DoingsomaydamagetheNetbellNTGorPOEoriginatingdevice.2.)Ifyou
intendtousetheisolatedmode,settheinputswitchbeforeapplyinganexternalvoltagedoingotherwisemaydamagetheNetbell
NTGorPOEoriginatingdevice.
NETBELLNTGSCHEMATIC

LinorTechnology,Inc.
Informationsubjecttochangewithoutnotice.
www.linortek.com
0419R001V001
PrintedinU.S.A.
POWERCONNECTION
TopowertheNetbellNTGconnectthepowersupplytothe12VDCandGNDpowerterminal,unlessyouareusingPOEthenjust
connecttheethernetcabletothePOEswitch.
Whenconnectingthepowersupply,connectthepositivewireofthe12VDCpowersupplytothe12VDCterminal,nagetivecable
(markedwithawhitestripe)totheGNDterminal.PlugthepowersupplytoasuitableACoutlet.Atthispoint,theGREEN/BOOTLED
lightontheboardshouldcomeonandstartflashing,indicatingthattheNetbellNTGisoperatingandisinthe"BootloadMode".
Afterabout5seconds,theGREENLEDwillgooffandtheREDLEDwillstartblinking,indicatingtheNetbellNTGisoperatingin
"ServerMode"anditisaccessibleonanetworkutilizingTCP/IPprotocols.
ETHERNETCONNECTION
PlugtheInternetcableintotheNETconnector.The"Connection"LEDlightontheboardwillcomeonifa100MHznetworkis
available,otherwiseitwillberemainoffandthe"Activity"LEDshouldstartblinkingindicatingnetworkactivity.
AUDIOOUTPUTCONNECTION
1.ThemostcommonaudioinputforamplifiersareanRCAconnection,makesureyouwiretheWHITEconnectortotheLFTline
outterminalblock(theWHITEwireonourprovidedcable)andtheREDconnectortotheRGTlineoutterminalblock(theRED
wireonourprovidedcable).ThebarecopperwiresarealwayswiredintotheGNDterminalposition.
2.Ifyouramplifierusesa3.5mmstereoaudiojackthetheinputthenusetheprovided3.5mmstereotolineoutcable.The
WHITEwireistobewiredintotheLFTterminalposition,theREDwireistobewiredintotheRGTterminalpositionandthe
barecoppergroundwirecanbewiredintoeitheroftheGNDterminalpositionsontheLINEOUTterminalblock.
3.Ifyouramplifierusesanaudiolineinputthenusethetwoprovided18gauge2plycable.Asthewiresforthe2plycablewillbe
thesamecolorforbothleftandrightsides,wiretheleftsidefirstthenoncecompletedwiretherightsidetoavoidcrossingthe
input/outputs.UsetheblackwiresfortheGNDpositionsandtheredwiresfortheLFTandRGTpositionsforeachrespective
input/output.
RELAYOUTPUTCONNECTION
Therearetworelayoutputsontheboard,theyaredrycontact(48Vmax5A@12VDC,3A@24VDC).Thereare3terminalsforeach
relay,labelledNO,CandNCwhichstandforNormallyOpen,CommonandNormallyClosed.Thephysicalbells/buzzersshould
beconnectedtotheCandNOterminals.
Whenwiringphysicalbellsorbuzzerstotherelayoutput,youneedtoselectasuitablepowersourcethatmeetstherequirementsof
thebellorbuzzer.Wireonesideofthepowersourcetoonesideofthebell.Theotherpowerwireisconnectedtotherelayterminal
C,finalconnecttheothersideofthebellwiretorelayterminalNO.
DIGITALINPUTCONNECTION
Thereare4digitalinputs(548VDC)builtontheboardfortriggeringspecialnotifications/emergencyalerts,asensorsuchas
temperaturesensororapushswitchcanbeconnectedtothedigitalinput.Pleasenote,whenconnecta12VDC48VDCsensortothe
input,anexternalresistor(provideduponrequest,2.2kohm0.5watt)mustbeused.Therearetwomodesofoperationforthedigital
inputs,PULLUPandISOLATED.ThePULLUPmodeconnectsa1Kresistortoaninternalvoltageallowingyoutouseasimpleswitch
(suchasamagneticdoorswitch)accrossterminals1and2.Whentheswitchisactivatedasignalissenttotheinput.Theother
methodallowsyoutodirectlydrivetheNetbellNTG'soptoisolatorwithanexternalvoltagethoughandinternal1Kresistor.This
voltagemaybeintherangeof5VDCto48VDCsupplyingaminumumof2mAoramaximimof30mAtotheoptoisolatordiode.
Thereisnootherinternalconnectiontothisvoltagesoitisanisolatedinput.
Thismodeisselectedbytheswitchontheserver(seetheboardlayoutforreference)markedISOandPUforisolatedorpullup
respectively.OntheNetbellNTGputtheswitchupforpullupanddownforisolated.
TwonotesofCAUTION:1.)Theseunitsaregroundisolated.AlwaysconnectsothatpowerloopisonlyconnectedtotheNetbell
NTGunit.DoNOTuseexternalgroundconnections.DoingsomaydamagetheNetbellNTGorPOEoriginatingdevice.2.)Ifyou
intendtousetheisolatedmode,settheinputswitchbeforeapplyinganexternalvoltagedoingotherwisemaydamagetheNetbell
NTGorPOEoriginatingdevice.
4
TheNetbellNTGiscapableofusingitsrelaystoswitchbetweenanexternalstereosourcesuchasaPAsystemoramusicplayer.
Followingthewiringschematicabove,theExternalsourceiswiredintotherelaysusingaNormallyClosedcircuit.Itisthen
connectedtotheaudioLineOutoftheNetbellNTG.
WecanthenprogramtheNetbellNTGtoopentherelays,whichdisconnectstheexternalaudiosource,andplayaprerecordedtone
suchasalunchtimenotificationoradoorchime.Todothiswewillneedtocreateabellscheduleevent,andatasktotriggerthe
playbackoftheaudiofile.
1.Createabellscheduleeventforthedesiredtimes.
a.Relays1and2willhavetoalwaysbetriggeredtodisconnecttheexternalsource.
b.Usingrelaysnumbered38(phantomrelays)onthebellschedulepagewillbeneededtoselecttheaudiofileontheNetbell
NTG.
2.Createatasktoplaythedesiredaudiofile.
a.SelectRELAYforDeviceAandentertherelayintoDataA,orrelaysasan"AND"statementusingDeviceBandDataB.
b.ForDeviceCselectSendUART.ForDataCenterintheUARTcommandfortheaudiofile,forexample
"PFILENAMEOGG".
FormoreinformationofhowtoprogramtheNetbellNTGsoftware,pleaserefertotheNetbellNTGSoftwareSetting
Instructions.
WIRINGABACKGROUNDMUSICCONNECTION