Specifications

Section-1 Introduction

November 11, 2013

1‐6

WARNING:Disconnectprimarypowerpriortoservicing. 888‐2628‐300

1.2.4.1 GraphicalUserInterface

TheTCUfrontpanel(in PAcabinetoneonmulti‐cabinettransmitters)containsthegraphicaluserinterfacewhichis

a5.25",color,1/4VGA,LCD,touchscreen,panelPC,display.Thetouchscreendisplayusessoftwarebuttonsto

monitorandcontrolthetransmitter.Aseriesoffrontpanelpushbuttonsprovideimmediateaccess

tothemost

importantcommandsandstatusinformation.

TCU’ sinadditionalPAcabinetswillnotbeequippedwithGUIscreens.

Figure 1-4 TCU Front Control Panel

1.2.5 ControlSystemCommunications

ThecontrolsystemusesaserialcommunicationssystemcalledaCANbus.CANstandsforControllerAreaNetwork.

TheCANbusisaclosedloopserialnetworkcontrolledbythemainTCU.TheCANbusconnectsthemainTCUwith

TCU’ sinothercabinets.EachTCUboardconnectedtotheCAN

busisconsideredanodeandthereforehasaspecific

address.ThisallowsthemasterTCUtousethesystembustogatherinformationfromallpartsofthetransmitter

anddisplayitontheGUI.OnebigadvantageoftheCANbusisthatitrequiresonly2wires

ofthesystemcontrolbus

ribboncable,eliminatingalargeamountofdiscretewiringwhich wouldotherwiseberequired.

ThesystembustiesTCU’ sineachcabinetto gether.Thecabinetbusisforthemostpartaduplicateofthesystembus

butintendedtoconnectnodeswithineachindividualcabinet.ThecabinetbusoriginatesintheMCMmodule within

eachTCU.The cabinetbusisdesignedtokeepthe

PAcabinetsoperatingevenifthecommunicationswiththe

mastercabinetTCUislost.

1.2.5.1 SoftwareUpdates

Softwaredoesnotneedtobeloadedintothetransmitterunlessnewcomponentsareinstalledoranupdateis

directedfromHarrisBroadcast.M2XexciterandTCUPCM(processorcontrolmodule)&MCM(maincontroller

module)softwarecanbeupdatedviaremotewebbrowserconnectiontoanexternalcomputer.Thetransmitter,

as

shippedfromthefactory ,ispreloadedandreadytorun.

1.2.5.2 RemoteControl

TheULXtransmitterhasthebasicdiscretewiredparallelremotecontrolwiththestandardconnectionsforcontrol,

statusandanalogmonitoringlocatedonthecustomerI/Opanelonthetopofcabinet1.Seesection

2.18for

additionalparallelremotecontroldetails.

MaxivatransmittersincludeawebenabledremoteGUIinterfacethatprovidescomprehensiveremotecontroland

monitoringofdatapointswithinthetransmitter.ItincludesanSNMP(simplenetworkmanagementprotocol)

managerwhichallowsintegrationwithmostcontrolsystemsviatheInternetorLAN.Theremotewebconnectionis

madeviaan

EthernetportonthecustomerI/Opanelonthetopofcabinetone.

1.2.6 PAModule

ULXPAmodulesutilizeLDMOS(laterallydiffusedmetaloxidesemi‐conductor)ampl ifierstoproduceupto1880W

analogpeak,800WaverageATSC,or650WaverageCOFDMpoweroutput(theseareapproximatevaluesandvary