User's Manual

Confidential&Proprietary94/115 SC‐DAS
‐11dBm 9dB 0dBm 20dB +10dBm 30dB
‐10dBm 10dB 
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TheMDBUcards intheBIUprovideALC(AutoLevelControl)functionalityforeach oftheinputsto
limit the maximum power output per carrier input. The input level starts activating ALC at‐20dBm
when turning the ALC on.For correct parameter settings, first, perform the input AGC and then
turntheALCfunctionon.
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Edit the port name and set it as a desired character string (up to 12 characters).For example, the
figurebelowshowsascreenwhenyouset“VzW”forport1and“AT&T”forport2.
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Figure6.4–MDBUnameassignmentattheBIU
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Thisnamingisreflectedatthetreeasfollows
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Figure6.5–MDBUnameassignmentatthetree
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Usevariousupper/lowerlimits.Thefollowingtableshowsrecommendedlimitsettings:
Item RecommendedLimit Remark
TXINHIGHALM 15dBm Alarm
TXINLOWALM‐25dBm Alarm
RXOUTALC 0dBm AutoLevelcontrol
RXOUTHIGHALM 5dBm Alarm
After you finish setting normal input levels and alarm limits, check to see if the MODULE FAILURE
LEDIndicatorislitgreen(Normalcase).