User's Manual
LTEeNodeBIndoorHardwareInstallationPreparation
Torquerequirements
Wheninstallingthebuilt-upBCUIIcardcage,tightenthecorrespondingfastenersasfollows:
•BCUIIgroundwirelugM6nuts–4.5N-m(39.8in-lb)
•FibercoverM4screws–2.3N-m(20in-lbs)
Requireditem
Thefollowingreplacementunitisrequired:
•BCUIIcardcageassembly ,MotorolapartnumberSGLN1945
ReplacementProcedure
PerformthestepsinProcedure8-11andProcedure8-12toreplacetheBCUIIcardcage.
Procedure8-11RemovingtheBCUIIcardcage
1
CAUTION
Thefrontpaneldoormustnotbepivotedopenbeyond120degrees
fromtheclosedposition.Thereisamechanicalstopperpinthat
indicatesthis120degreesposition.
Topreventdamagingthedoorandtheex-circuit,DONOTforce
thedooropenbeyondthe120degreesposition.
Workingatthefrontoftheframe,opentheBCUIIfrontpaneldoorasfollows:
1.Whileholdingthedoorlatchreleasebuttondepressed,graspthetop
edgeofthefrontpaneldoor .
2.PullthedoorawayfromtheBCUIIandpivotitdownwardtoopen.
3.Openthefrontpaneldoortothe90degreesposition.
2
OntherightendoftheSiteControllercardfrontpanel,locatethepower
ON/OFFswitch.
3
PowerdowntheBCUIIbymomentarilydepressingthepowerswitchsothat
theswitchactuatorisintheOUT/OFFposition.
4
ObservethatalloftheBCUIIfrontpanelLEDsareOFF .
5
SettheexternalBCUIIpowersourcetoOFF .
6
Disconnectallofthecablesconnectedtoconnectorsontheoutsideofthe
BCUIIfrontpaneldoor.DressthesecablesawayfromthefrontoftheBCUII.
Continued
68P09308A55-68-21
FEB2010