David Clark U9921 UNIVERSAL FIXED PART GATEWAY CONTAINING DECT TRANSCEIVER (UPCS) User Manual 40994G 01 U9921 GUV

David Clark Company Inc. UNIVERSAL FIXED PART GATEWAY CONTAINING DECT TRANSCEIVER (UPCS) 40994G 01 U9921 GUV

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U9921 User Manual HTML Version

Users Manual

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19541P‐42(02‐11)

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U9921-GUV

(P/N: 40994G-01)

Universal Gateway

USER MANUAL

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READANDSAVETHESEINSTRUCTIONS.Followtheinstructionsinthisinstallation

manual.Theseinstructionsmustbefollowedtoavoiddamagetothisproductand

associatedequipment.Productoperationandreliabilitydependsonproperusage.

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DONOTINSTALLANYDAVIDCLARKCOMPANYPRODUCTTHAT

APPEARSDAMAGED.UponunpackingyourDavidClarkproduct,

inspectthecontentsforshippingdamage.Ifdamageisapparent,

immediatelyfileaclaimwiththecarrierandnotifyyourDavidClark

productsupplier.

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ELECTRICALHAZARD‐Disconnectelectricalpowerwhenmakingany

internaladjustmentsorrepairs.Allrepairsshouldbeperformedbya

representativeorauthorizedagentoftheDavidClarkCompany.

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STATICHAZARD‐Staticelectricitycandamagecomponents.

Therefore,besuretogroundyourselfbeforeopeningorinstalling

components.

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LI‐POLYMER‐ThisproductisusedwithLi‐Polymerbatteries.Donot

incinerate,disassemble,shortcircuit,orexposethebatterytohigh

temperatures.Batterymustbedisposedofproperlyinaccordance

withlocalregulations.

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TheU9921‐GUV(40994G‐01)UniversalGatewayisafixed‐mountedwirelesscommunication

devicethat,whenusedinconjunctionwithoneormoreU9910‐BSW(40992G‐01)orU9912‐

BSW(40992G‐02)WirelessBeltStations,becomespartofawirelessintercomsystem.The

U9921‐GUVprovidescommunicationforuptofourusersaswellasaninterfacetoanexisting

wiredintercomsystem.Uptofourbeltstationscanbeconnectedtoonegateway.

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Status LED

Gasket

Bracket

Nut

Panel

Antenna

Connection

Threaded

Post

Interface

Connector

LINK VOL

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Figure1:OverviewofGateway

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IntercomInterface

TheU9921‐GUVisdesignedtoaddwirelesscapabilitytoanexistingwiredintercom.Connection

totheintercomisaccomplishedbyconnectinganinterfacecabletotheinterfaceconnectorof

theU9921‐GUV(seeFigure1).ThefollowinglistcontainsDavidClarkintercomsystemsthat

havebeentestedtoworkwiththeU9921‐GUVandtherequiredcableassembly.

Table1:IntercomInterfaceCableAssemblies

DavidClarkIntercomCableAssemblyRequired

U3800VehicularIntercomSystem C99‐22MS(40935G‐08)

U9800MarineIntercomSystemC99‐20CX(40935G‐07)

U9500MarineIntercomSystemC99‐20LL(40935G‐06)

U3400PortableIntercomSystem

U3100ModularIntercomSystemC99‐20MS(40935G‐05)

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TheU9921‐GUVwilldetectthecableassemblieslistedaboveandautomaticallymakethe

necessaryaudioleveladjustmentsforthecorrespondingintercom.

Mounting

TheU9921‐GUVmaybeflushmountedorsurfacemountedusingtheincludedgasket,nut,and

bracket.SeeFigure1formountingsuggestions.

Note:Bracketnotusedforflushmountapplications.Bracketmountingconfigurationmaybe

reversedforvaryingrequirements(e.g.,vehicledashvs.ceiling‐mount.)

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Antenna

TheU9921‐GUVhasaninternalantenna.Anexternalantennamaynotbenecessarybutthe

antennaconnectorisprovidedforeithertheincludedwhipantennaoranoptionalremote

antennakit(P/N:40688G‐93).

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Chooseanopen,clearlocationfortheremoteantennaandroutethecoaxialcableawayfrom

anybusyareas,preferablybehindpanelsorinconduits.

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Thisdevicehasbeendesignedtooperatewiththeantennaslistedbelow,andhavinga

maximumgainof3dB.Antennasnotincludedinthislistorhavingagaingreaterthan3dBare

strictlyprohibitedforusewiththisdevice.Therequiredantennaimpedanceis50ohms.

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Acceptableantennasforusewiththisproduct:

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• WhipAntenna(P/N:40688G‐92)

• RemoteAntennaKit(P/N:40688G‐93)

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Beforeabeltstationandagatewaycanbeconnected,theymustfirstbelinked.Asasecurity

measure,theclose‐linkfeaturerequiresdevicestobeinproximityofbetween1to3ft(0.3to

0.9m)inordertosuccessfullylink.Thisensuresthattheunitsarenotinadvertentlylinkedwith

otherunitsonthepremises.

Linkingprocedure:

1. Ensureunitsarewithin1to3ft(0.3to0.9m)ofeachother.

2. Simultaneously(within1‐2sec)pressandreleasetheLINKbuttonontheU9921‐GUVand

thepowerbuttononthebeltstationtolinkwith.

3. AmberLED’swillflashonbothdevices.AmomentaryredLEDindicatesasuccessful

close‐link.

4. UponsuccessfullinktheU9921‐GUVwillattempttoestablishaconnectionwiththebelt

station.

5. UponsuccessfullyestablishingconnectiontheLEDonthecontrollerwillflashagreen

patterncorrespondingtothenumberofbeltstationsconnected.

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Tip:

Oncelinked,thedeviceswillnotneedtobelinkedagainunlesstheyarepurged(see

Purging).

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Eachbeltstationisabletobelinkedtoonlyonegatewayatatime.Agatewaycanhaveuptosix

beltstationslinkedandbeconnectedtofourofthosesixatonetime.

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Thefrontpanelhasamulti‐colorLEDinthecenterwhichservesasastatusindicationforthe

gateway.Table1belowliststhesestates.

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Table2:LEDStatusIndications

LEDColorBlinkRateStatus

RedSolidInitializing/powerup

RedOnceConnectionDropped

RedOnceConnectionEstablished

RedAnyLowbattery(approx.1hrremaining)

OrangeSlowIdle/Disconnected

OrangeFastLink/ConnectioninProgress

OrangeSolidPTTasserted

GreenSlowConnected(patternindicates

numberofbeltstationsconnected)

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Communication

AllconnectedbeltstationswillbeabletocommunicatewitheachotherthroughtheU9921‐GUV

whileinrange(andpertheVOXsettingsonaVOXbeltstation.)Additionally,allbeltstation

userswillhavecommunicationovertheintercom.Iftheintercomissoequipped,pressingthe

PTTbuttononaVOXbeltstationwillallowtheusertotransmitoverthesystem’stwo‐wayradio.

PressingthePTToverridestheVOXsettingonaVOXbeltstation.MultipleVOXbeltstationusers

mayPTTandthusspeakoverthetwo‐wayradiosimultaneously.Formoreinformationconsult

theusermanualforthebeltstation.

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Tip:

WirelessuserswhoarenotpressingPTTwhileanotherwirelessuserispressingPTT

willnotbeheardonthewiredintercomwhilethePTTremainspressed.

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IntercomLevelAdjustment

Audiolevelscanvarybetweenintercoms,mainlyduetothesystemlevelsettingonthewired

intercom.Tocompensateforthis,theU9921‐GUVhastheabilitytoadjustitsreceivelevelfrom

theintercomusingtheVolkeys(seeFigure1).Pressingthesekeyswillincreaseordecreasethe

audiolevelcomingfromthewiredintercomintothegateway.Performthisadjustmenttoobtain

optimumperformance.

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ReceiveLevelAdjustmentProcedure

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1. ConnectatleastonebeltstationtotheU9921‐GUVgatewayandensuresidetoneis

present(seebeltstationUserManual).

2. BeginspeakingandslowlyandrepeatedlypresstheVolumeUpkeyontheU9921‐

GUVgatewayuntilyouhearanechoofyourownvoice.

3. ContinuespeakingandpresstheVolumeDownkeyuntiltheechostops.

4. Youmaywishtoverifycommunicationwithsomeonehard‐wiredtotheintercom.

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Range

Therangeofabeltstationandagatewaycanbeupto300ft(100m).Ifyouareinan

environmentwithmetalorconcretewalls,thisrangecouldbereduced.Whenthebeltstation

travelsoutofrangeofthegateway,avoicealertwillindicatethattheconnectionhasbeenlost.

Toreconnect,simplymovebackintorangeandconnectionwiththegatewaywillautomatically

bereestablished,alsonotedbyavoicealert.

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Insomecircumstancesitmaybenecessaryto“purge”theU9921‐GUVofsomeofitslinkedbelt

stations.Typicallypurgingisnotnecessaryunlesstherearemultiplegatewaysinthesame

vicinityandyouwishtoremoveabeltstationfromthisgatewayandlinktoadifferentgateway.

Agatewaycanlinkuptosixbeltstationswhereabeltstationcanbelinkedtoonlyonegateway

atatime.



SmartPurge

AsmartpurgeisthepurgemethodemployedfortheU9921‐GUV,inwhichonlyunwantedlinks

areremovedfromthegateway.Whenthisprocedureiscomplete,onlybeltstationsthatare

connectedtothegatewayremainlinked.Allotherbeltstationlinkswillhavebeenremoved(see

thebeltstationUserManualfortheindividualbeltstationpurgingprocedurewhenremaining

linkpurgingmaybenecessary.)



SmartPurgeprocedure



1. Ensurethegatewayispoweredonandfunctioning.

2. Disconnectallbeltstationstobepurged(poweroffthebeltstations).

3. VerifythenumberofgreenLEDflashesonthegatewaymatchesthenumberof

beltstationstobekeptlinked.

4. PressandholdLINKbuttononthegatewayfor30secondsuntilLEDquickly

flashesred.

5. ReleaseLINKbutton.



Table3:Troubleshooting

ProblemSolution

GatewaywillnotturnonEnsurecorrectinterfacecableisbeingused

(Table2)

CannotlinkabeltstationReviewRegistrationprocedure

Ensureunitsarewithin1to3ft(0.3to0.9m)of

eachother

TryaSmartPurge

Cannotspeakovertwo‐way

radio

PTTnotpressed

Two‐wayradionotinstalledtosystem

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• Interfacecableassemblies:

DavidClarkIntercomCableAssemblyRequired

U3800VehicularIntercomSystem C99‐22MS(40935G‐08)

U9800MarineIntercomSystemC99‐20CX(40935G‐07)

U9500MarineIntercomSystemC99‐20LL(40935G‐06)

U3400PortableIntercomSystem

U3100ModularIntercomSystemC99‐20MS(40935G‐05)



• WhipAntenna(P/N:40688G‐92)

• RemoteAntennaKit(P/N:40688G‐93)



TheU9921‐GUVisnotuserserviceable.Donotattempttoopentheenclosure.Ifthisproduct

requiresservice,pleasecontacttheDavidClarkCustomerServicedepartment:

• Phone: 800.298.6235

• E‐Mail:serviceWWW@DavidClark.com

• ByMail:CustomerService

DavidClarkCompany

360FranklinStreet

Worcester,MA01604



Ifnecessary,theU9921‐GUVmaybewipeddownwithamildsoapandwatermixture.Although

itisasealeddevicedesignedtowithstandsubmersioninwaterto1meter,donotunnecessarily

submersethisproductinwater.

Avoidstorageofthisproductindirectsunlightorhightemperatureenvironments.

FrequencyRange1920MHz‐1930MHz(U.S.andCanada)

1880MHz‐1900MHz(EU)

AverageRFPowerOutput4mW(100mWpeak)(U.S.andCanada)

10mW(250mWpeak)(EU)

Range300ft(100m)line‐of‐sight(nominal)

OperatingTemperature‐14°Fto113°F(‐10°Cto+45°C)

StorageTemperature‐4°Fto140°F(‐20°Cto+60°C)

PowerRequirements8to25VDC



8of8

19541P‐42(02‐11)



RADIOANDTELEVISIONINTERFERENCE



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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tocorrecttheinterferencebyoneormoreofthe

followingmeasures:



‐Reorientorrelocatethereceivingantenna.

‐Increasetheseparationbetweentheequipmentandthereceiver.

‐Connecttheequipmentinto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.



Youmayalsofindhelpfulthefollowingbooklet,preparedbytheFCC:"HowtoIdentify

andResolveRadio‐TVInterferenceProblems."ThisbookletisavailablefromtheU.S.

GovernmentPrintingOffice,WashingtonD.C.20402.



*InordertomaintaincompliancewithFCCregulationsshieldedcablesmustbeusedwith

thisequipment.Operationwithnon‐approvedequipmentorunshieldedcablesislikelytoresult

ininterferencetoradio&televisionreception.



ChangesormodificationsnotexpresslyapprovedbyDavidClarkCompany,Inc.couldvoidthe

users’authoritytooperatetheequipment.



ThisequipmentcomplieswithFCCradiationexposurelimitssetforthforanuncontrolled

environment.Thisequipmentshouldbeinstalledandoperatedwithaminimumdistanceof20

centimeters(8inches)betweentheradiator(antenna)andyourbody.Thistransmittermustnot

beco‐locatedoroperatinginconjunctionwithanyotherantennaortransmitter.



DuetotheUPCSfrequenciesused,thisproductislicensedforoperationonlyintheUnitedStates

ofAmericaandCanada.

David Clark U9921 UNIVERSAL FIXED PART GATEWAY CONTAINING DECT TRANSCEIVER (UPCS) User Manual 40994G 01 U9921 GUV

David Clark Company Inc. UNIVERSAL FIXED PART GATEWAY CONTAINING DECT TRANSCEIVER (UPCS) 40994G 01 U9921 GUV

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