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User's Manual

ManualsBrandsNokia Solutions and Networks ManualsElectronicsLTE 700 MHz Public Safety Base Station Transceiver
61626364656667686970
LTEeNodeBIndoorHardwareInstallationQuartz-highstabilityoscillator
Procedure3-17Q-HSOinstallation
1
InstalltheQ-HSObyinsertingthetabintotheslotintheBCUII.Referto
Figure3-14.PushtheQ-HSOuntilitseatsintheD-typeconnectoratthe
rearofthetray .
2
UseaT20TorxbittoinstalltheQ-HSO.Torqueto2.25N-m(20in-lb)
3
NOTE
TheQ–HSOmustwarmupfor60minutestoreachasteadystate
beforeitcantakeoverforafailedGPSsignal.Iftheactivesite
controllercardrebootsduringthe60minutewarm-upperiod,
thetimerisreset,andtheQ–HSOmustwarmupforanother60
minutesbeforeuse.
TheREFFAULTLEDontheBCUIIcontrollercardlightswhentheQ–HSOis
rstinstalledbutturnsoffbythetimeitiswarmedup.
68P09308A55-63-29
FEB2010