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User's Manual

ManualsBrandsNokia Solutions and Networks ManualsElectronicsLTE 700 MHz Public Safety Base Station Transceiver
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ReplacementProcedureChapter8:FieldReplaceableUnits
Procedure8-14InstallingtheBCUIIfantray
1
Withthereplacementfantrayproperlypositioned,insertthefantrayandcableintothe
openingontherearoftheBCUII(SeeFigure8-5).Besurethatthefantraycabledoes
notgetpinched.
2
AtthefrontoftheBCUII,reachinthroughthevacantSiteControllercardandModem1
cardslotstowardthefantrayandtheleftendoftheBCUIIcagebackplane.
LocatethefantraycableconnectorandplugitintotheBCUIIbackplane.
3
SecurethefantraytotherearoftheBCUIIasfollows(SeeFigure8-5):
1.UsingaT20Torxbitanddriver,handtightenthefourcaptivescrews.
2.Useanalternatingdiagonalscrewtightenpattern.
3.Afterhandtightening,useaT20Torxbitandtorquedrivertotightenthefourcaptive
screwsto2.3N-m(20in-lbs).
4
WorkingatthefrontoftheBCUIIcardcage,reinstalltheModem1cardbyperforming
thestepsinProcedure8-2.
5
ReinstalltheSiteControllerintotheBCUIIcardcageasfollows:
1.InserttheSiteControllercardside-edgesintothecardslotrails.
2.Rotatethecardejectorlatchescompletelyoutfromthecardfrontpanel.
3.Slidethecard,alongwiththeex-circuit,completelyintotheBCUIIcardcage.
4.Makesurethatthecardrear-edgeconnectorsfullyengagewiththematingbackplane
connectors.
5.Simultaneouslypressbothcardejectorlatchesintothecardfrontpanel.Feelandhear
aclickwheneachejectorlatchlockingtabengagesthecardfrontpanelandseats
thecardintothecage.
6
ConnecttheSiteControllercardex-circuitconnectortothefrontpaneldoorassembly
asfollows:
1.Whileholdingtheopenfrontpaneldoorinthe90–degreeposition,connectthe
ex-circuitconnectortothefrontpaneldoorassembly .
2.InsertthetwoM3screwsthatsecuretheex-circuitconnectortothefrontpanel
doorassembly .
3.UsingaT10Torxbitandtorquedriver ,tightenthetwoscrewsto1.1N-m(10in-lbs).
7
ReinstalltheBCUIIcardcageassemblyintotheframebyperformingthestepsin
Procedure8-12Reinstallingcardcageassemblyonpage8-23.
8-2868P09308A55-6
FEB2010