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• TrunkingwithouttheNeedforaDedicatedControlChannel
• EconomicalandPracticalDigitalUpgradeSolution
• LargeCapacityandEasyMigrationofInfrastructure
XPT Digital TrunkingDecentralizedandCost-EffectiveDigitalTrunkingSolution
Applications
Hotel Manufacturing Education PropertyManagement SMROperator Stadium Hospital
Hytera’sXPT(ExtendedPseudoTrunking)isadigitaltrunkingsystemthatdeliversupto16timesthecapacityofanalogconventionalmobileradiosystems;amorecost-effectivesolutionthatallowscustomerstoincreasecapacitywithoutusingadedicatedcontrolchannel.ThesystemcaneasilymigratefromTier-IIDMRbyapplyinganupgradelicensetotheRD982Srepeatersandconnectingthemviaalayer-2switch.
Overview
XPT(ExtendedPseudoTrunk)isascalabledigitaltrunkingsolutionthatallowsyoutoincreasethecapacityofanexistingconventionalDMRsystembysimplyupgradingthecurrentRD982SrepeaterandDMRradios.XPTconnectsalargernumberofuserswithvoiceanddataturningyourconventionalDMRSystemintoavirtualtrunkingsystem.XPTwillnowallowmultipleusersfromvariousdepartmentsfasteraccesstothesystem,thiscanincreasesproductivity,enhancecustomerserviceandprovidesbetterdispatchingtosecuritypersonnelrespondingtoemergencies.
XPTAllowstheradiotoscantimeslotsontherepeateranddynamicallychooseanopentimeslottoinitiateacall.Lesswaittimeisusedthanthosewhoarefixedtoaspecifictimeslot.Intypicalsystemsitisnotuncommonforrepeaterstobebusywhileothersremainunused,thisiswhereXPTDigitalTrunkingcomesintoaction.TheXPTsystembroadcaststheavailabilityofchannelsthroughouteveryrepeaterensuringtheuserwillhaveaguaranteedchanneltoinitiateacall.
WithintheXPTsystem,groupsofradioswillbeallocatedtoa“homerepeater”.Whenthehomerepeaterisidleallcallswillbemadethroughthisrepeater.WhenthehomerepeaterisbusytheXPTsystemwillautomaticallyanddynamicallyassigna“freerepeater”,whichtemporarilyprovidesavailablechannelstoinitiateacall.Oncethehomerepeaterhasanavailableresourcethegroupsofradioswillswitchbacktoit.Thisprocessisrepeatedonthesystemtoensureinstantcommunicationswithnointerruptionsorconstantbusysignals,nodesignatedcontrolchannelisneededinthisprocess.Thesameprocessworkswithgrouporallcalls,allradiosaremovetoasinglerepeater,freeinguptheotherrepeatersforuse,eveniftheradiosonthecallareassignedtootherrepeaters.
WhatisXPT?
When the home repeater is busy.
The radio / group is moved to the free repeater to initiate a call.
Group1
Group2
Group3
Group4 Group5
Slot1
Slot2
Busy
Busy
Slot1
Slot2
Busy
Free
HomeRepeater
FreeRepeater
Group1 Group2 Group3
Group4 Group5
Slot1
Slot2
Busy
Busy
Slot1
Slot2
Free
Free
HomeRepeater
FreeRepeater
XPT Extended
Pseudo Trunking
XPTDigitalTrunkingSystem
• TrafficChannelEachSinglesiteXPTDigitalTrunkingSystemsupportsupto8carriersand16callssimultaneously.
• DataFeaturesThesystemintegratesaudioanddataapplication,suchasGPS*,textmessage,telemetry*.
• PriorityCallWhenanallcalloremergencycallisbeinginitiateditwilltakepriorityoveranyothercallbeinginitiatedatthesametime.
• GroupCallAradiocanmakeagroupcallonlywhenithasbeenpredefinedintheHomerepeater.
• RemoteMonitorRemotediagnosticandcontrol(RDAC)programcanbecombinedwithXPTtomonitoranddiagnosetheperformanceofsystem.
• LoadBalanceWheninitiatingacallaradiomonitorsalltheslotsofrepeatersuntilfindinganidletrafficchannelsothatitcanmakeacall.Ifnonearefoundtheradiowillqueueandcontinuetomonitorallrepeatersuntilanopenslotisfound.
KeyElements TechnicalAdvantages
• BetterChannelUtilizationBasedontheXPTprotocol,thechannelsforvoiceanddatacanbeextendedupto16withmeresoftwareupgrade.Eachchannelcanbecustomizedtotransmitvoiceanddataortransmitdataonly.
• NoDedicatedControlChannelThereisnocontrolchannelinXPTandnolicenserequiredforcontinuoustransmitting.Allchannelscanbeusedastrafficchannels.
• FastDeployment&EasyConfigurationThissystemiseasilydeployedandconfiguredsinceitisbasedonrepeatersconnectedviaalayer-2switch.AneasymigrationfromDMRTier-IItoXPTisprovidedbypurchasingalicensetoupgradetheRD982Srepeatersonthesystem.ThesubscriberswouldalsoneedtobeupgradedinfirmwaretoenabletheXPTfeature.TheavailablesubscriberradiosfortheXPTDigitalTrunkingSystemarethePD6,PD7,X1,MD6,andMD7Series.
• ChannelCapacityThechannelcapacityofXPTsystemis8timesaslargeasHyteradigitalconventionalcommunicationsystemand16timesaslargeasaconventionalanalogsystem.
• EmergencyAlarmWhenanemergencycallisactivatedbyaradio,itwilltriggeranalarmthatissenttoadefinedradioorgroupofusersintheXPTsystem.
KeyElements TechnicalAdvantages FaultTolerance
• RouterFallback*Ifthesystemisdisconnectedfromtherouter,communicationwillcontinueusingtheresourceswithineachsite.
• CarrierFail-safeIfarepeaterisdown,theremainingcarriersofthesystemwillcontinuetooperateasatrunkingsystemwithatemporarylessincapacity.
TheXPTsystemisadistributedtrunkingsystemthatcanavoidinterferencecausedbyabnormalsituationsthroughfaulttolerance,thisallowsthesystemtokeepoperatingevenwhenfaultsaredetected.
• ReliableStructureTheXPTDigitalTrunkingSystemhasamulti-levelfail-safestructure.Thisallowsuserstocontinuecommunicatingsmoothlyuntiltheequipmentisserviced.
• LANSwitchFailIntheeventofaLANswitchfailureeachrepeaterstartsworkingasatwo-channeltrunkingsystem.
NOTE:Itemswithanasterisk*willbereleasedinafutureversionofXPT.
XPT Extended
Pseudo Trunking
XPTDigitalTrunkingSystem
Versatile Voice Services• PrivateCall
• GroupCall
• EmergencyCall
• AllCall
• PoliteAccess
• TelephoneCall*
Supplementary Call• AlertCall
• RemoteMonitor
• RadioEnable
• RadioDisable
• RadioCheck
• EmergencyAlarm
Data Operation• TMS
• RRS/GPS*
• QuickGPS*
• DedicatedDataRevert*
ProductFeatures
Advanced Features• Scan
• AccessLimitation
• InterferenceDetection*
• FaultTolerance
• RDAC
• Encryption*
• Roaming*
Dispatcher Features• RRS/GPS*
• OTAP*
• PSTN/PABX*
• VoiceRecording*
NOTE:Itemswithanasterisk*willbereleasedinafutureversionofXPT
ProductFeatures SystemComponents CompatibleProducts
1 RD982S(atleast2andamaximumof8Repeaters)
2 CombinerUnit(COM)
3 DividerUnit(DIU)
4 Duplexer
5 IPSwitch
6 CabinetUnit
7 PowerSupplyUnit(PSU)
8 EthernetCables
9 Multi-Couplers
Repeater IS SeriesRD982S PD792Ex
PD702UL913
PD6 Series PD782UL913
PD602/PD602G
PD662/PD662G X1 SeriesPD682/PD682G X1e
X1p
PD7 SeriesPD702/PD702G Mobile SeriesPD752/PD752G MD652/MD652G
PD782/PD782G MD782/MD782G
MD6Series
PD79
2Ex
MD7Series
PD6Se
ries
PD7Se
ries
X1Ser
ies
RD982S
20KHz/25KHzwillnotbeavailableonnewequipmentintheU.S.afterJanuary1st,2011
Hyterareservestherighttochangeproductdesignsorspecificationsatanytime.IfyouhaveanyquestionsregardingtheaccuracyofthisinformationpleasecontactyourlocalsalesrepresentativeorHyteradirectly.
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