Specifications

Section-4 Theory
November 11, 2013
4‐14
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4.4.5 CPLD(ComplexProgrammableLogicDevice)
EachPA(poweramplifier)modulecontainsaCPLD(ComplexProgrammableLogicDevice)device.TheCPLDisnota
microprocessorbutisapre‐programmeddiscretelogicdeviceandthereforeverystableandreliable.TheCPLD’sin
thePAmodulesareresponsibleforreportingfaultsbacktheTCUandalsofortaking
actionwhentheON/STBY
commandisissuedbytheTCU.
4.4.6 LifeSupportFunctions
Lifesupportfunctionsareactivewhenthemaincontrolsystem,controlledbythePCMinthemainTCU,isnot
functioningproperly.LifesupportfunctionsarecontrolledbytheMCMcardinthemainTCU.
Table4‐9LifeSupportFunctionality
SystemFunction Description
AvailableinLife
SupportMode
TXOn TransmitterONcommandviafrontpanelorparallelremoteinterface. YES
TXOff TransmitterOFFcommandviafrontpanelorbyparallelremoteinterface. YES
PowerRaise
Transmitterpowerraisecommandviafrontpanelorbyparallelremote
interface.
YES
PowerLower
Transmitterpowerlowercommandviafrontpanelorbyparallelremote
interface.
YES
ManualExciterA/BSelect Exciterselectionviafrontpanelorbyparallelremoteinterface. YES
AutomaticExciterSwitchover AutomaticexciterswitchoverofexcitersifinAUTO. YES
ManualDriverA/BSelect Driverselectionviafrontpanelorbyparallelremoteinterface. YES
AutomaticDriverSwitchover AutomaticdriverswitchoverofDriversifinAuto. YES
ManualPAON/OFF
PAmodulescanbeturnedonandoffviacircuitbreakerinsiderearof
transmitter.
YES
PAThreeStrikeSequence PAmodulethreestrikeoperationrequiredoperationalPCM. YES
ManualPumpSwitchOver
Pumpswitchovercontrolledbypushbuttonfrompumpcontrolcardorby
parallelremoteinterface.
YES
AutomaticPumpSwitchOver AutomaticswitchoverofpumpsifinAuto. YES
AutomaticTransmitterPower
Control(ALC)
TransmitterpowerautomaticlevelcontrolifinAUTO. YES
VSWRProtection YES
FoldBackOperation YES
PAModuleSummaryFault
Monitoring
YES
PAModuleDeepFault
Monitoring
YES
PAModuleMeterReadings NotavailableduetolossofGUIdisplay. NO
ACFaultsMonitoring YES
LiquidInlet/Outlet
TemperatureFaults
YES
FlowandTemperatureMeter
Readings
NotavailableduetolossofGUIdisplay. NO
CabinetSummaryFault YES
SafetyInterlocks YES
RFMuteInterlocks YES