Zte ZXMW NR8120D - Checking the ODU Installation

ZXMWNR8120A/8120DMaintenanceGuide
CheckResultHandlingSuggestion
Thereceiveleveluctuates.lIffrequencyinterferenceexists,performthefrequency
sweeptesttogettheinterferencefrequencyandadjust
thefrequencypointsofthemicrowavelink.
lIfthelevelattenuationiscausedbybadweatherlikerain,
àModifythepolarizationmodetobealowerone,or
enabletheAdaptiveCodingandModulation(ACM)
function.
àFrequencyresourcespermitting,usealow-band
ODU(<11GHz).
àIncreasethetransmitpower,usealarge-aperturean-
tenna,andenabletheAutomaticTransmitterPower
Control(ATPC)function.
lIfthereceivefaultiscausedbymultipathattenuation,
àModifytheequipmentprotectionmodetospacedi-
versitymodetoeliminatethemultipatheffect.
àAdjusttheantennaheight.
àIncreasetheantennaaperture.
–EndofSteps–
1.3.2CheckingtheODUInstallation
TheproceduredescribeshowtochecktheOutdoorUnit(ODU)installation,toensurethat
theODUcanoperateproperlyandwellcooperatewithotherdevices.
Steps
1.VerifythattheinstallationpositionanddirectionoftheODU'sadaptermeetthe
engineeringdesignrequirement.
2.VerifythattheODU'sadapterisrmlyxedonthepole,meetingthewindresistance
requirement.
3.IftheODUisinstalledinseparatemode,verifythattheinterfaceoftheexible
waveguideangeisrmlyandreliablyconnectedtotheODU'sadapter,andensure
thatthebendingradiusoftheexiblewaveguidedoesnotexceed90°.
4.VerifythattheODUiswithintheprotectionrangeofthelightningrod.
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SJ-20150804150350-006|2015-09-17(R1.0)ZTEProprietaryandCondential