User's Manual

Confidential&Proprietary66/115 SC‐DAS

Figure5.7–BDAInterfaceusingDuplexer

TheBIUwillworkwiththeBDAineitherofthemethodsabove.TXsignallevelfromtheBDAmustbe
verifiedthatitiswithinrangeoftheBIU.

 GiventheBIUTXinputrange(‐20dBm~+10dBm/Totalperport),verifyitiswithintheinput
range,beforeconnectingtheports.


5.1.4 MDBUinstallation
MDBUisdesignedtobeinsertedintoanyslot.
ABIUcanbeequippedwithatotaloffourMDBUs.IfonlyoneMDBUisinserted,youneedtoinsert
BLANKcardsintotheotherslots.


 IfyoudonotterminateinputandoutputportsoftheMCDU,whichcombinesTXsignalsand
dividesRXsignals,itwillcauseoutofbandspurioussignals.MakesuretoinsertMDBUBLANKcards
intotheMDBUslots.

WhenanMDBUisinsertedintotheBIU,LEDsatthe
frontpanelwillshowthefollowinginformation:



