Specifications

Section-3 Operation
October 17, 2013
3‐80
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3.8.5 UDC/OutputStatusScreen
Figure 3-73 LPU UDC/Output Status Screen
Table3‐71StatusScreen>UDC/Output
Field Explanation
Status
Alive Green=UDCiscommunicating,Red=fault
RFMute Green=unmuted,Red=muted
Levels(mV) (ThissubwindowprovidesthesignallevelsfortheUpconverter .)
LO(mV)
Rangeis2222to2427.IftheLOlevelisdetectedtobeoutsideofthisrange,afaultisdeclaredandthe
RFOutputofthesys
temwillbemuted..
IF(mV)
Rangeis693to857.IftheIFlevelisdetectedtobeoutsideofthisrange,afaultisdeclaredandtheRF
Outputofthesystemwillbemuted.
Temperature(C)
AmpTem pera ture
UpconverterAmp(Amplifier)Temperature .Ifthetemperatureisabove72
.5degreesC,awarningis
issued.Afaultisdeclaredwhenthetemperatureis75.0degreesCandabove.Thiswillcausethe20V
UDCpowersupplytoshutdown.Thefaultwillclearoncethetemperaturehasfallenbelow70.0
degreesC,atwhichtimethe20Vsupplywillre‐en
able
PowerSupply(VDC) VoltagesattheUpConverter:
+20VDC Range:18.0‐22.0VDCThisreadinghasnolimits,itshouldbewithin10%ofthestatedvalue.
+12VDC Range:10.8‐13.3VDCThisreadinghasnolimits,itshouldbewithin10%ofthestatedvalue.
UpconverterAttenuation
IF TheamountofIFattenuationisre
presentedbythedisplayedvalue,whichmustbegreaterthan6.5dB.
RF TheamountofRFattenuationisrepresentedbythedisplayedvalue,whichmustbegr eaterthan6.5dB.