Specifications

Section-3 Operation
October 17, 2013
3‐82
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3.8.8 StatusScreens‐ATSCModulator
Figure 3-76 LPU ATSC Status Screen 1
Table3‐72XmtrHome>ExciterHome>Status>BatteryBackup
Field Explanation
UPSState StatusisEnabledorDisabled.ThisisaninputfromthetransmitterI/O.Itisusedtodisable
thebackupbattery.Theinputforthiscontrolispin9oftheTransmitterInterface
Connector,whichisfoundonthetransmitterI/Oboardoption.Thebatterybackupcanbe
disabledbyad
ditionofaconnector/jumperdescribedinFigure2‐10onpage2‐15.
UPSMode IndicateseitherOnBatteryorMainsOK.
ManufactureDate Datebatterywasreleasedbymanufacturer.
ExpirationDate Batteryisconsideredexpiredifthissixyearexpirationdatehaspassed.
CycleCount Numberofcharge/dischargecycles.Replacebatterywhen2000countisr
eached.
SoftwareVersion Softwareversionreadfromchiponbatterypack.
+12VDCBattery Afaultoccursifthe+12voltoutputdropsto+10volts.
Note:The+9.6voltoutputofthebackupbatteryisconvertedto+12VDC.Thefaultoccurs
whenthe+9.6VDCdropsto8.3VDC
Table3‐73XmtrHome>ExciterHome>Status>ATSCModulator(screen1)
Field Explanation
PrimaryASI
Greenifpr
esent.Rediffaultedorabsent.
Iftr
ansportstreaminputispresent,butarenotselectedfortransmission,itsindicatorswill
beyellow.Typically,onlytwoinputsusedatatime.SeeSection2.9.5onpage2‐10to
determinewh
ichtwoinputswillbeused.
PrimarySMPTE
AuxiliaryASI
AuxiliarySMPTE
MPEGPa
cketsinBuffer
IncomingMPEGda
taisstoredinaFIFObuffer.ForMFNoperation,theusualFIFOmid‐
bufferdepthis1304packets.InSFNoperation,thenumberofpacketsheldinthebufferis
dependentontheemissiontimingrequirements.Ineithercase,thenumberofpacketsin
thebuffershouldbere
lativelystable.
MPEGSy
ncLostCount
Numberoftimestheexc
iter'sinputcircuithaslostsynchronizationwiththeincoming
MPEGsynctotheextentthatthecircuithaderrorsandhadtoreacquire.
M/HDat
aPresent
YesorNo.Iftheexc
iterhasMDTVmodeenabled,thiswillindicatewhetherornotmobile
DTVisindeedpresentinthetransportstream.