10 10.4”puterwithInterCom TECHNICALOVERVIEW DescriptionandApplication BeFREE10_TO_1_4.docVersion1.4December8,2017 TABLEOFCONTENTS II TABLEOFCONTENTS
A.GENERALINFORMATION.......................................................................................A-1
A.1.Highlights..............................................................................................................A-1
A.2.TechnicalCharacteristics

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2 B.

INTEGRALPARTSANDFUNCTIONALITY..........................................................B-1B.1.Operator

Interface..................................................................................................

B-1B.2.Touchmonitor

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B-3B.3.EmbeddedComputer

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B-3B.4.(AudioSection)......................................................................................B-4B.4.1.MicrophoneAmplifier...................................................................................B-5B.4.2.Hands-Free

Amplifier....................................................................................

B-5B.4.3.Alarm/AlertAmplifier...................................................................................B-5B.4.4.CentralSpeakerAmplifier.............................................................................B-5B.4.5.Bar-Graph

Display.........................................................................................

B-6B.4.6.Incremental

Encoder......................................................................................

B-6B.5.ExternalConnectors

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B-7B.5.1.ExternalDigitalInputs...................................................................................B-
7 C.OPERATION

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C-1C.1.ConfiguringBeFREE10.......................................................................................C-1C.2.ApplyingBeFREE

10............................................................................................

C-
1 D.OPTIONS......................................................................................................................D-1
D.1.InclinationMechanism..........................................................................................D-1
D.2.HIDTelephonyInterface......................................................................................D-1D.3.Echo-CancellationCircuitry..................................................................................D-2
D.4.Goose-NeckMicrophone

......................................................................................D-
2 E.

ORDERINGCODES

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E-1E.1.BeFREE10

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E-1E.2.InclinationMechanism..........................................................................................E-
2 F.REFERENCES

...............................................................................................................F-
1 G.

NOTICES......................................................................................................................G-1
G.1.Disclaimer.............................................................................................................G-1
G.2.CopyrightNotice...................................................................................................G-
1 BeFREE
10–TECHNICALOVERVIEW
A.GENERALINFORMATION A-
1 A.GENERALINFORMATION TheBeFREE10(BF10)isamemberofthemodularFREE(alsoreferredtoasFREE/FREE+/BeFREE)productfamily,integratinga10.4”touchmonitor,puterandandevice.ItpatiblebinablewithallexistingFREEmodules.Theprisesahighresolution(XGA),ultra-wideviewingangleTFTLCDand5-wireresistivetouchscreen.puterisbasedonamain-boardwithIntelquad-coreCeleronprocessor(J1900)andasolidstatedisk.ThankstoponentsandthecorrespondingelectronicandthermaldesigntheBeFREE10pletelysilentandwithoutmovingparts. Thesectionconsistsofagoose-neckmicrophone,illuminatedPTTkey,stereoloudspeakers,volumecontrolknobandVU-meter.ItsprimaryaudiointerfaceisUSB,butitisalsoconnectedtotheanaloguesoundcardoftheputer.Thisdualinterfaceresultsinuptofourlistening(output)channelsandtwoparallelrecording(input)channels.StatusofthePTTkeyisreportedviaHIDKeyboardand/orHIDTelephonyinterface. A.1.Highlights FEATURES♦space-savingintegrationofafanlessputerandan(functionallyequivalenttobinationofBeFREE15andSpeakerboxmodule)♦modular–binablewithotherFREEmodulesintomultifunctionalterminals♦low-profilehorizontaldesign♦silentandreliable-nomovingparts,industrialponents,redundancy,redundantinternalaudioandcontrollerinterfaces♦extensiveconnectivity(LAN,USB,COM,externaldisplay,digitalinputs)♦cablemanagement–hiddenandsecured,butessible♦built-inTiprocontrollerenables:modularityandprogrammabilityenergysavingmodestouchscreendisable/enablecontrolbrightnessadjustmentfiveprogrammablekeystwoprogrammabledigitalinputs(e.g.foranexternalPTTswitch/pedal)♦stereoloudspeakers(2x2W)withvolumecontrolencoder♦additionallow-frequencyloudspeaker(1x1W)withprogrammableequalizer BeFREE10–TECHNICALOVERVIEW
A.GENERALINFORMATION A-
2 ♦total5Woutputpowergeneratessoundpressurelevel(SPL)ofapproximately92dBat1.0mdistance,whatisapproximately23timeslouderthanaverageconversation ♦goose-neckmicrophonewithilluminatedPTTkey♦three-colourbar-graphdisplay♦threemechanicalkeysforbrightnesscontrolandotherfunctions♦mechanicalkey-switchinsidetheencoderforbar-graphcontrol♦severalLEDindicators(power,SSD,microphone,speakers,touchscreen...)♦optionalInclinationMechanism(VESA75) APPLICATIONS♦operator/dispatcherterminals/consolesmandandcontrolcentresin:transportandtrafficcontrol(railways,airtraffic…)publicsafety(police,firebrigades,ambulance…)utilities(electricity,gas...)building/facilitymanagementsystems(airports,banks,industrialplants…)♦tradingandbankingconsoles♦multifunctionalcontrolpanels A.2.TechnicalCharacteristics ELECTRICAL♦powersupply:12V±5%(fromanexternalAC/DCadapter)♦powerconsumption: OperatingModeOFF(powersaving)SLEEP(Windowsstandby)IDLEACTIVE Typical0.2W3.0W16.5W21.0W MaximalTBDTBDTBD32.0W Note1:Valuesinthetableabovearetemporaryapproximationsoftypicalconsumption,obtainedbymeasurementsatthe12VpowerinputoftheBeFREE10(LCDatfullbrightness)withoutanyadditionalTipromodulesandwithoutanyotherperipheralsconnected.TerminologyforOperatingModesistakenfrom“ENERGYSTARProgramRequirementsforComputers:Version5.0”. ♦internalinterfaceandpowerconnectors(toprovideformodularity):left-handsideTiproBusconnector:6-pinMicro-MaTchheader(male)attheendofa6-wireribboncable BeFREE10–TECHNICALOVERVIEW
A.GENERALINFORMATION A-
3 right-handsideTiproBusconnector:6-pinMicro-MaTchheader(male)attheendofa6-wireribboncable♦externalinterfaceandpowerconnectors(toprovideforexternalexpansions):puterinterfaces:LAN,USB,COM,VGA…(seeChapterB.5fordetails) MECHANICAL♦casing:plasticABS,black(C15)colourwithmatteblack(C25)part♦grossdimensions(withside-covers):332x278x100(WxDxH)[mm]♦goose-neckmicrophonelength/height:350±50mm♦weight:3.9kg(approximately)♦protection(sealing)grade:IP20(ordingtoEN60529) FigureA.1PhysicalDimensions ENVIRONMENTAL♦operatingambienttemperaturerange:+5°Cto+35°C♦storageambienttemperaturerange:-10°Cto50oC♦relativehumidityrange:20%to80%(non-condensing) EMBEDDEDCOMPUTER♦Processor(SoC)IntelCeleronJ19002.0GHz(2.42GHzburstfrequency)♦ChipsetNorthbridgefunctionalityintegratedintheSoCSouthbridgefunctionalityintegratedintheSoC BeFREE10–TECHNICALOVERVIEW
A.GENERALINFORMATION A-
4 ♦SystemMemory4GBDDR3L-1333 ♦VideographicprocessorintegratedintheSoCdualindependentdisplaysupportresolution:upto2560x1600 ♦Dual:2xIntelI211,10/100/1000Base-TX ♦AudioAnalogueLineInandLineOut(internallyconnectedto) ♦MassStoragetype:SolidStateDisktechnology:Multi-LevelCell(MLC)NANDinterface:SATAII-3Gb/sformfactor:2.5”capacity:≥120GB DISPLAY♦type:TFTLCD♦size:10.4”diagonal♦aspectratio:4:3♦nativeresolution:1024×768(XGA)♦luminance/brightness(typical):≥350cd/m2♦contrastratio(typical):≥500:1♦backlightlifetime(typical):≥35,000hours TOUCHSCREEN♦technology:5-wireresistive(ELO)♦positionaluracy:2.03mm(standarddeviationoferror)♦positionaluracy:±4.572mm(maximumerror)♦touchactivationforce:<113g(typically)♦controllerresolution:4096x4096touchpoints♦lighttransmission:80±5%(at550nmwavelength)♦lifetime:35x106touchesinonelocation BeFREE10–TECHNICALOVERVIEW
A.GENERALINFORMATION A-
5 AUDIOSECTION(INTERCOM)♦Loudspeakers(Left/VoiceandRight/Alert)twoinparallelwithintheleftoutputtwoinparallelwithintherightoutputtype:dynamicratedpower:3Woutputsoundpressurelevel(SPL):78dB±3dB@1W@1kHz@1.0mdistance♦Loudspeaker(Central)type:dynamicratedpower:3Woutputsoundpressurelevel(SPL):79dB±3dB@1W@1kHz@1.0mdistance♦Goose-neckMicrophonetype:electretcondenser,unidirectionalmaxinput:120dBSPL♦AnalogueAmplifiersdesignedtomeetwide-bandIPtelephonystandardsfrequencypass-band:(100Hz-8kHz)TYPoutputpower:5x1W(2x2x1W+1x1W)♦USBAudioCodecmodel:TexasInstrumentsPCM2902CUSBInterface:full-speed,USBpliant,certifiedbyUSB-IFresolution:16-bitDelta-SigmaADCandDACsamplingrates(ADC):8,11.025,16,22.05,32,44.1,48kHzsamplingrates(DAC):32,44.1,48kHzmendeddataformat:16-bit(ratherthan8-bit),stereo(ratherthanmono) MECHANICALKEYS♦PushToTalkKey(twokey-switchesinparallel)model:CherryMXkeytravel:3.6mmto4.0mmtotal,(2±0.6)mmpretravelactuatingforce:(60±20)cNreliability(MeanCyclesToFailure):MCTF=1billion(109)press/releasecycles(50millionisguaranteedminimum)♦ControlKeysmodel:DiptronicDTSkeytravel(typical):0.3mmactuatingforce(typical):255cNlifetime(minimal):0.5millionoperations BeFREE10–TECHNICALOVERVIEW
B.INTEGRALPARTSANDFUNCTIONALITY B-
1 B.INTEGRALPARTSANDFUNCTIONALITY BeFREE10representsanintegrationofatouchmonitor(displaywithtouchscreen),puter,anandacontroller. CentralSpeakerVoiceSpeaker ON/OFFKeyTouchscreenDisplayPTTKey FigureB.1OperatorInterfaceofBeFREE10 MicrophoneAlertSpeakerMicrophoneLEDEncoderwithSwitchControlKeysLEDIndicatorsBar-GraphDisplay B.1.OperatorInterface TheStripe(seeFigureB.2below)isanergonomicallydesignedverticalareaalongtheright-handsideofthedisplay.prisesanumberofvisualindicatorsandmechanicalkeys(short-travel)toprovidetheoperatorwithaquickinsightandimmediateesstoimportantcontrols.ThemostprominentpositionisassignedtothePTTkey,whichconsistsoftwolong-travelmechanicalkey-switchesandalargeactuatorwithdimmablebackgroundillumination. BeFREE10–TECHNICALOVERVIEW
B.INTEGRALPARTSANDFUNCTIONALITY B-
2 MicrophoneLEDIlluminated(red)whilethemicrophoneisactive. SpeakerIndicatorIndicatesspeakerbeingadjusted BrightnessUPKey Presstoincreasebrightnessofthedisplayandallvisualindicators. BrightnessDOWNKey Presstodecreasebrightnessofthedisplayandallvisualindicators. Home/TouchDisableLongpressdisablestouchscreen.TheLED Key indicator(lock)isilluminated(red)whiletouchis disabled.Shortpress(re)enablestouchscreen. StatusIndicators Power,DiskActivityandWarning.SeeFigureB.3formoredetails. Bar-GraphDisplay Green:loudspeakersvolumelevel Red:VU-meter(actualsignallevelattheloudspeakersandthemicrophone) Orange:displaybrightnesslevel PTT(PushToTalk)Key BydefaultPTT,butcanbesettoPTM(PushToMute)oranyotherkeyevent. BluebacklightcanbeprogrammedtoblinkorturnON/OFFuponpress/release. FigureB.2TheStripe(Keys&Indicators)BeFREE10–TECHNICALOVERVIEW
B.INTEGRALPARTSANDFUNCTIONALITY B-
3 SpeakersBlueTouchscreenRed Indicatesifvolumesettingisappliedtoleft,rightorbothspeakers Illuminatedwhentouchscreenisdisabled Power DiskWarning BlueShortblink:OFF(powersavingmode)Longblink:SLEEP(standby)Continuous:ACTIVE(operating) BlueBlinkingindicatesread/writeactivityofSSD RedIlluminatedwhenanerrorhasbeendetected FigureB.3LEDIndicators B.2.TouchmonitorTheprisesahigh-brightness,ultra-wideviewingangleTFTLCDand atouchscreen.ThedisplayisconnectedtotheputerviaLVDSinterface.ThetouchscreenisoperatedbytherespectivecontrollerwithUSBinterfacetotheputer. BrightnessoftheLCDandallvisualindicatorsontheStripe(Bar-GraphDisplay,LEDIndicatorsandPTTKeybacklight)isadjustablebyBrightnessUPandDOWNkeys.Home/TouchDisablekeycanbeusedtotemporarilydisabletouchscreenforcleaningpurposes. B.3.EmbeddedComputerBeFREE10incorporatesanindustrialgradeputer,whichoperatesthe embeddedtouchmonitorandprovidesforanextensiveconnectivitytoenablevariousexternalperipheralstobeusedalong(seeChapterB.5formoredetails).ItisinternallyconnectedtotheTiproController(viaUSBandCOM4)aswellaswiththeAudioSection/Subsystem(viaUSBandAnalogueLine-In/Line-Outsignals). puterisbasedonIntel’sintegratedcircuits,whatenablesawide-rangeofoperatingsystemstobeapplied.Asolidstatediskisusedasamassstoragedevice.Theheatgeneratedbyintegratedcircuitsistransferredviaaheat-pipetoaninternalheat-sink,withoutafan.AsaresulttheBeFREE10pletelysilentinoperation,withoutmovingparts. BeFREE10–TECHNICALOVERVIEW
B.INTEGRALPARTSANDFUNCTIONALITY B-
4 B.4.(AudioSection) ThefunctionalblockdiagramoftheaudiosectionisshowninFigureB.4below.Left(Voice)andRight(Alert)Speakerarephysically/electricallyrealizedastwoloudspeakersinparalleltodoubletheoutputvolume.TheCentralSpeaker,alongwithassociatedhardwareequalizer,emphasizeslowerfrequenciesinordertoimprovenaturalnessandintelligibilityofthereproducedspeech. Internalsignalprocessingincludesanalogue-to-digitalanddigital-to-analogueconversion(block“USBAUDIOCODEC”),conditioning(amplification,attenuation,filtering…),sensingandswitching.pleteprocessingisprogrammableviaChangeMesoftwareandcanbedynamicallymodifiedduringtheoperationinso-calledOn-Lineoperatingmode(usingHIDAPI).USBandanaloguesignalscanbemixed,resultinginuptofourlistening/outputaudiochannels(2xstereosignal)andtwoparallelrecording/inputchannels(USBandanalogue).TheEcho-Cancellationcircuitryisoptional(seeChapterD.3formoredetails). LINEOUT:
L ∑LANALOGUERAUDIO AMPLIFIER LINEIN: L&
R USBAUDIO USBAUDIOCODEC LINEOUT:
L R LINEIN: L&
R ∑
M ∑ AMPLIFIER
R FigureB.4AudioSection()BeFREE10–TECHNICALOVERVIEW MICROPHONEAMPLIFIER
B.INTEGRALPARTSANDFUNCTIONALITY B-
5 B.4.1.MicrophoneAmplifier Thisisalogarithmicaudioamplifierwithprogrammablegain,noisegatingthresholdpressionratio.Noisegatingfeatureenablesambientnoisetobesuppressed.Allsoundsbelowthethresholdareremovedinsidetheamplifier,sowithhigherthresholdthemicrophoneneedstobeusedclosertothemouthandspeechneedstobeloudertogetthroughtheamplifier.pressionfeaturepressionoftheoutputsignaldynamicsinordertominimizethedifferencebetweensoft/lowandloudspeech.Theamplifierisalsocapableoflimitingextremelyloudspeechthuspreventingdistortionandpopping.Theoverallgaincanbeevenlowerthanone(i.e.attenuation)aswellasequaltozero(i.e.totallymutedinput).Alsotherangeofthegoose-neckmicrophonecanbeadjusted. Alinearregimeoftheamplifierisaspecialoptionwhichmightbeactivatedinfullduplexoperationwhereacousticechoistobecancelledusingapplicationsoftware(ratherthanoptionallyintegratedhardwareecho-canceller–seeChapterD.3). B.4.2.Hands-FreeAmplifier ThisisalinearaudiopoweramplifierwithprogrammablegainthatdrivestheVoice(Left)Speaker.Thegainofthisamplifier(i.e.volumeoftheVoiceSpeaker)canbeadjustedbytheuserinnormaloperationviatheincrementalencoder(i.e.endlessdigitalpotentiometer)attherearright-handsideofthemodule.Theselectedlevelisimmediatelydisplayedatthebar-graphdisplayingreencolour(20volumelevels+mute).Theamplifiercandeliverupto2W(2x1W)ofelectricpowertotheVoiceSpeaker. B.4.3.Alarm/AlertAmplifier ThisisalinearaudiopoweramplifierwithprogrammablegainthatdrivestheAlert(Right)Speaker.ThegainofthisamplifierisnormallyequaltothegainoftheHands-Freeamplifier,butitcanalsohaveaseparateresponsecharacteristictothepositionoftheincrementalencoder.Thisway,forinstance,theAlertSpeakercanbeheldataconstantvolumelevelwhileincreasing/decreasingvolumelevelattheVoiceSpeaker.Theamplifieriscapableofdeliveringupto2W(2x1W)ofelectricpowertotheAlertSpeaker. ItisalsopossibletopletelyindependentvolumeadjustmentsoftheAlertSpeaker(seeChapterB.4.6). B.4.4.CentralSpeakerAmplifierThisisalinearaudiopoweramplifierwithprogrammablegainandcut-offfrequency, soiteffectivelyactsasaprogrammablelow-passfilter(whichisakindofanequalizer)capabletoboostlowerfrequencies(typicallybelow300Hz)andimprovenaturalnessof BeFREE10–TECHNICALOVERVIEW
B.INTEGRALPARTSANDFUNCTIONALITY B-
6 thereproducedspeech.ItdrivestheCentralSpeakerbythe“equalized”sumofsignalstotheVoiceandtotheAlertSpeaker.Theamplifiercandeliverupto1WofelectricpowertotheCentralSpeaker. B.4.5.Bar-GraphDisplay prises10three-colour(red,greenandorange)LEDs.BydefaultitconstantlyoperatesasVUmeterinredcolour,showingactualleveloftheleftoutputsignalandthelevelofthemicrophonesignal.Optionally,themicrophonesignalcanbedisconnectedfromtheVUmeter.Itisalsopossibletoaddtherightoutputsignal,sotheVUmeterdisplaysthesumofleftandrightoutputs. IfarotationoftheincrementalencoderhasbeendetecteditautomaticallydisplaysthegainoftheHands-FreeAmplifieringreencolour. IfapressofbrightnessUPorDOWNkeyhasbeendetecteditautomaticallydisplaysthecurrentbrightnesssettingoftheLCDandallvisualindicatorsinorangecolour. B.4.6.IncrementalEncoder ThisisanendlessdigitalpotentiometerusedforimmediatevolumecontroloftheVoiceandAlertSpeakers.Ithas24detentsperrevolution.Everysingledetentchangesthevolumeforonestepupordown,butonlyeverysecondoneisrepresentedbyoneLEDintheBar-Graphdisplayingreencolour.Theencoderincorporatesapush-switch/keywhichenablesnavigationthroughdifferentbar-graphmodes:Volume,BrightnessandVUmeter.IntheVolumemodebothSpeakerIndicatorsontheStripeareilluminated. Optionally,theencoderenablesindependentvolumecontrolforeachofthespeakers.Inthismodeitsinternalpush-switchisutilizedtotogglethespeakertobeadjusted.CurrentlyadjustablespeakerisindicatedontheStripebytherespectiveSpeakerIndicator. BeFREE10–TECHNICALOVERVIEW
B.INTEGRALPARTSANDFUNCTIONALITY B-
7 B.5.ExternalConnectors NumerousconnectionsforexternaldevicesareavailableattheConnectorPlate(seeFigureB.5)fromunderneaththemodule.Mostofthemarestandardinterfaces(USB,LAN,COM,VGA…)intendedforuserstoapplyfreely. 1234
5 6
7 8
9 # Designator 112VInput 2DigitalInput 3DualUSB 4DualUSB 5DualUSB 6LAN1 7LAN2 8COM1 9VGA TypeMiniPowerDINRJ4P/4Csocket2×USBtype–A2×USBtype–A2×USBtype–ARJ8P/8C(RJ45)RJ8P/8C(RJ45)DSUB-9maleDSUB-15female FigureB.5ConnectorPlate NotereservedseeChapterB.5.1full-speed,500mAfull-speed,500mAhigh-speed,500mA1Gb1GbRS232serialportanalogueRGBoutput B.5.1.ExternalDigitalInputs Twoinputs(refertoFigureB.6fortheconnectorandsignaldescription)areprovidedfordetectionofexternaldigital(ON/OFF)signalstobetransformedintoprogrammablekeyevents,equivalentto,forinstance,PushToTalkkeyontheStripe.TypicaldevicetobeconnectedtoisanexternalPushToTalkswitch/pedal. Oneoftheinputs(A)isgalvanicallyisolated(viaopto-coupler)andisthereforeintendedforanexternalground-referencedsignal,suchasadigitaloutputofanother BeFREE10–TECHNICALOVERVIEW
B.INTEGRALPARTSANDFUNCTIONALITY B-
8 electronicdevice.Theotherinput(B)istobeusedforanexternal“floating”signal,suchascontactsofamechanical/ickey/switch(seeFigureB.7). Pin#1234 FigureB.6DigitalInputsConnector SignalA–(GND)A+(RxD)B+(TxD)B–(GND) PortInternalcircuitry
A Suggestedexternalcircuitry
B FigureB.7ApplyingDigitalInputsTheseinputshaveanalternativefunction(directesstotheTiprocontrollerfromanputerviaserialRS232port,asperFigureB.6)whichisintendedforinstallationandmaintenancepurposes.MoredetailscanbefoundintheChapterC.1aswellasintheReference[11]. BeFREE10–TECHNICALOVERVIEW
C.OPERATION C-
1 C.OPERATION C.1.ConfiguringBeFREE10 TheBeFREE10isaplexdevicewithanumberofprogrammablesettings/parametersprovidedforuserstoconfigureinordancetotheparticularapplication.ToenablethatfeatureTiprosuppliestherespectiveprogrammingutility(ChangeMe)whichoperatesonlyunderWindowsoperatingsystems.Itassistsuserstodefineownsetofparameters,savethemintoafile(forpossiblereplicationinthefuture)andprogramintonon-volatilememoryoftheTiprocontrollerforpermanentstorage. Itisalsopossibletodynamicallymodifycertainsettings(e.g.displaybrightness,LEDindicators,touchscreendisable/enableforcleaningpurposes…)fromtheapplicationsoftware.ForthatpurposeTiproprovidestherespectiveWindowsAPI(HIDAPI)andtheassociateddocumentation. BeFREE10canbeprogrammed/configuredexternally,fromputer.puterneedstooperateunderWindowswithChangeMeutilityinstalledandhaveoneserialCOMportavailable.TheBeFREE10mayoperateunderanyoperatingsystemornothaveitinstalledatall.ThisfeatureisobviouslyusefulincaseswhentheBeFREE10runsanon-Windowsoperatingsystem,butitisalsoapplicableinallWindowscaseswhereChangeMeutilityisnotinstalled(e.g.topreventuncontrolledmodificationsofthesettings).ThecablerequiredforprogrammingcanbeorderedfromTipro(OrderingCodeTM-CGR)orrathereasilymade.TheReference[11]describestheprocedureindetail. C.2.ApplyingBeFREE10 TheBeFREE10istypicallyusedtogetherwithotherFREEadd-onmodules,binedinpositions/configurations.AnexamplewithHandsetmodulesisshowninFigureC.1below. BeFREE10–TECHNICALOVERVIEW
C.OPERATION C-
2 FigureC.1ExampleBeFREE10Configuration HandsetTM-HTA TiproBusModule USBAudioDevice GenericUSBHub BeFREE10BF10 TiproUSBController TiproBusModule GenericUSBHub USBAudioDevice TiproBus USBRootHubMainBoard USBCable USBCable HandsetTM-HTA TiproBusModule USBAudioDevice GenericUSBHub FigureC.2ExampleBeFREE10Configuration–SchematicRepresentation BeFREE10–TECHNICALOVERVIEW
D.OPTIONS D-
1 D.OPTIONS D.1.InclinationMechanismBeFREE10canbefittedwithanInclinationMechanism(alsoreferredtoasAngle AdjustmentMechanism).Normally,thedisplaysurfaceofBeFREE10isinclinedfor150againstthehorizontalplane.Themechanismenablesgradualadjustmentoftheanglefromapproximately300to700. FigureD.1BeFREE10withInclinationMechanism(VESA75) D.2.HIDTelephonyInterfaceActualstatus(pressed/released)ofthePTTkeyisnormallyreportedasaprogrammable sequenceofkeystrokesgeneratedbyastandardUSBkeyboard,thiswayemulatingagenericHIDKeyboardDevice.AnexampleoftheapplicationcanbefoundintheReference[9](“HookandPTTinSoftware”). Additionallyoralternatively,thePTTstatuscanbereportedviaHIDTelephonyInterface,whichisanintegralpartoftheBeFREE10.Seereference[10](“HIDTelephonyInterface”)formoredetails. BeFREE10–TECHNICALOVERVIEW
D.OPTIONS D-
2 D.3.Echo-CancellationCircuitry Acousticechoisaphysicalphenomenoninherenttohands-freedevices(suchas)infull-duplexmode,soitneedstobesuppressedand/orcancelled.Thisisnormallyimplementedintheapplicationsoftwarethroughthespecificsignalprocessingroutines.Alternatively,itcanbeachievedinthehardwareusingadigitalsignalprocessor.Basicpropertiesoftheoptional(seeChapterE.1fordetailsontherespectiveOrderingCode)Echo-Cancellationcircuitryarelistedbelow. ♦performance:full-duplex♦samplingrate:16kHz♦acousticecho-cancellation:≥40dB♦latency:≤10ms ReferencesignalforthecancelleristakenfromtheVoiceSpeaker.Optionally,thereferencecanbesignalattheAlertSpeakeraswellasthesumofsignalsatbothspeakers. D.4.Goose-NeckMicrophone Bydefault,thegoose-neckmicrophoneisanintegralpartoftheBeFREE10,butitcanbeoptionallyomitted.SeeChapterE.1fordetailsontherespectiveOrderingCode. BeFREE10–TECHNICALOVERVIEW
E.ORDERINGCODES E-
1 E.ORDERINGCODES E.1.BeFREE10
1 2 34 567
8 9 BF10-JD2-RU0-C15C25-xxx 1–ModuleTypeBF–BeFREE(puter)module 2–Model10:Integrated,10.4”LCD 3–EmbeddedComputerJ:IntelCeleronJ1900@2.0GHzwith4GBRAM 4–Version&ConnectivityD2:Fanlessversionwithaudiofeatures(“Dispatcher”) 5–TouchscreenTechnologyR:ELOResistive(zero-bezel) 6–IntegratedAudioOptionsU:USBSpeakerboxfunctionalityC:USBSpeakerboxfunctionalitywithEcho-CancellationCircuitryV:USBSpeakerboxfunctionalitywithoutgoose-neckmicrophone 7–Reserved0:none 8–HousingColourC15C25:black(C15)withblackmatte(C25)partofthehousingThispartofthecodeisnotmandatoryifthecolourisC15C25,whatisadefault. 9–CustomVersionThree-digitnumberreservedforproductmodifications.Itisomittedincaseofstandardversion. Note1:BeFREE10requires12VDCpowersupplytooperate(seeChapterA.2).TherespectiveAC/DCadapterisincludedinthepackaging,alongwiththeEUpowercord.ForinstallationswhereAC/DCadapterneedstobeplacedfurtheraway(morethanabout1m)fromtheBeFREEE10TiproofferstheDCpowerextensioncable(OrderingCodeTMCPH)whichis1.5mlong. BeFREE10–TECHNICALOVERVIEW
E.ORDERINGCODES E-
2 E.2.InclinationMechanism 123
4 5 TM-SUA-C15-xxx 1–essoryTypeS–MechanicalSupportmechanism(InclinationMechanism) 2–MechanismTypeU:Universal 3–AdapterTypeA:AllBeFREEs(exceptforBeFRE15) 4–ColourC15:blackThispartofthecodeisnotmandatoryifthecolourisC15,whatisadefault. 5–CustomVersion Three-digitnumberreservedforproductcustomizations.Itisomittedincaseofstandardversion. BeFREE10–TECHNICALOVERVIEW
F.REFERENCES F-
1 F.REFERENCES
1.“BeFREE22”–TechnicalOverview2.“BeFREE20”–TechnicalOverview3.“HANDSET”–TechnicalOverview4.“SPEAKERBOX”–TechnicalOverview5.“BeFREE15”–TechnicalOverview6.“ChangeMe”–User’sManual7.“HIDAPI”-ReferenceManual8.“ModularityDemystified”–“DispatchingHints&Tips”WhitePaper–IssueNo.0019.“Hook&PTTinSoftware”–“DispatchingHints&Tips”WhitePaper–IssueNo.00410.“HIDTelephonyInterface”–“DispatchingHints&Tips”WhitePaper–IssueNo.00511.“BeFREE10/20ExternalProgramming”–“DispatchingHints&Tips”-IssueNo.006 BeFREE10–TECHNICALOVERVIEW
G.NOTICES G-
1 G.NOTICES G.1.DisclaimerInformationfurnishedbyTiproisbelievedtobeurateandreliable.However,Tipro makesnorepresentationsorwarrantiesregardingtheuracypletenessofthecontentsofthisdocumentandreservestherighttomakechangestospecificationsandproductdescriptionsatanytimewithoutnotice. G.2.CopyrightNotice©2013-2017Tipro.Allrightsreserved.Trademarksandregisteredtrademarksarethe propertyoftheirrespectiveowners. BeFREE10–TECHNICALOVERVIEW