User's Manual

Confidential&Proprietary51/122 SC‐DAS
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4.4.4 SubAssemblydescription
1)MainRFModule/AddonRFModule(MRFM/ARFM)+BPF
When receiving TX signals from each band through R‐Opt, MRFM/AFRM filters the signals and
amplifies them with the High Power Ampifier. The unit also filters RX signals received through the
antennaportandamplifiesthemaslownoisetosendthesignalstoR‐Opt.
Intheunit,thereisanATTtoadjustgain.Thisdevicevariesforeachfrequencyband,includingthe
following:

BPF
No Combination Unitnaming Description
CavityFilter CeramicFilter
MRU1900P+850C MRFM1900P+850C Dual. 1900PCS 850C
1
ARU700LTE+AWS‐1 ARFM700LTE+AWS‐1 Dual. 700LTE AWS‐1
MRU1900P MRFM1900P Single 1900PCS‐
2
ARU900I+800I ARFM900I+800I Dual 900IEN/800IDEN‐
3 Tobedeveloped‐ ‐ ‐ ‐
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2)RemotePowerSupplyUnit(RPSU)
RPSUaccepts‐48VDCinput.Thisunitisconfigured2ways:theDC/DCtypeoutputs+25VofDCpower
andAC/DCtypetakes120VACinputandoutputs+25VofDCpower.
Please specify which type when ordering. MS Connector, which uses ports to receive inputs, is
designedforeither AC andDCinput configuration. The input cableisdifferent depending on input
voltageconditions.
TheRPSUdoesn’thaveaswitchtoturnthepowerON/OFF.Unitisactivewhenpowerisconnected.
Here,youshouldcheckforrangeofinputpowerasfollows:
No. Unit Rangeofinputpower Remark

1 AC/DC 90to264VAC
2 DC/DC
‐42Vto‐56VDC
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
(a)AC/DC(b)DC/DC