User's Manual
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6 Enclosure
EnclosuretosatisfyNEMA4(IP66);
Wallmounting(VerticalMount)
7 SIU
SystemInterfaceUnit
Distributepowerandsignalsofeachmodule
3.1.3 Functionbyunit
3.1.3.1 HighRemoteDriveUnit(HRDU)
WhenreceivingTXsignalsfromeachbandthroughRemoteOptic,HRDUfiltersthesignalsandamplifies
themwithHighPowerAmpifier.TheunitalsofiltersRXsignalsgiventhroughcavityfilterandamplifies
themtosendthesignalstoRemoteOptic.Intheunit,thereisATTtoadjustgain.HRDUconsist
ofUDCU,
DTU,PAUandcavityduplexerlikebelowfigureandallmodulesaremergedwithonepackage
Figure6.HRDUOuterLook