User's Manual

Confidential&Proprietary95/115 SC‐DAS
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Figure6.6–MDBUModuleFailureinformationattheBIU
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6.1.3 BIURXparameters
For RX operation at BIU, you need to set RX gain to prevent the BTS or BDA from being
affected.ThereisanATTsettingwindowtoletyouadjustgainperbandandport.
TotalRXgainis50dBperband.Toadjustadesiredgain,youneedtodo
thefollowing.Fora
desiredRXgain,youcansetitas50dB‐RXATT.UsetheterminalandcheckifTXAdjustvalue
andEc/Iovalueisappropriate.
TopreventhighlevelsignalsfromenteringtheBTSorBDA,keepALCmodeactivated(ON).