User's Manual

Confidential&Proprietary53/115 SC‐DAS
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4.4.3 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:

No Combination Unitnaming Description
BPF
CavityFilter CeramicFilter
1
MRU1900P+850C MRFM1900P+850C Dual. 1900PCS 850C
ARU700LTE+AWS‐1 ARFM700LTE+AWS‐1 Dual. 700LTE AWS‐1
2
MRU1900P MRFM1900P Single 1900PCS‐
ARU900I+800I ARFM900I+800I Dual 900IEN/800IDEN‐
3 MRU700LTE+AWS‐1 MRU700LTE+AWS‐1 Dual. 700LTE AWS‐1
4 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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