User's Manual Part 1

FiberDistributedAntennaSystem(FiberDAS)
19
DOI401Series FOI
TheDOI401fo
urportFOIisverysimilartoDOI302expectthatithasfourWDMopticalportsinsteadofone.This
allowstheusertoinstalldedicatedfiberstoeachRemoteUnitwithouthavingtobalanceopticalsplitterlinkbudgets
foreachremoteinagroup.Thebalancedsplitterlossisaccountedfo
rinthe7dBolinkbudgetoftheDOI401.Unlike
theDOI302,theDOI401doesnotrequiretheULopticalsignalstobeondifferentwavelengths.
Figure 17 DOI401 Interfaces
OPTO IN/OUT 1
OPTO IN/OUT 2
OPTO IN/OUT 3
OPTO IN/OUT 4
FOI
ALM
ON
UL OUT 1
TP DL
RES
TP UL
DL IN 1
DL IN 2
UL OUT 2


Table 13 DOI401 Specifications
Item Description
OPTOIN/OUT SC‐APCconnectionsfortheopticalfiber.
ULOUT1/2 UplinkportstotheICU/BIU.
DLIN1/2 DownlinkportstotheICU/BIU.
TPUL/DL Testportsusedtocheckthesignallevelsornoiseinthesystem.
Parameter Value
MaximumfiberlossfromMUtoRU,Optical, 7dBo
Opticaloutputpower,Calibrated 3000µW
Ma
x
imumnumberofRUsupportedonsinglefiber 1
InputRFpowerrecommended,Composite ‐50to‐35dBm
Powerconsumption <20W
OperationalTe mperaturerange 0to45°C(32to133°F)
ModuleWidth 2cardslot
Opticalconnectortype SC‐APC
RFconnectortype QMAFemale