User Manual

SystemDescription
12
Figure7
isablockdiagramshowingthedownlinkpathintheFOIandhowthetestportisconnected.Asyoucan
seether
earetwoattenuatorsthatcanbesetintheDLpath,thisallowsforbalancingtheinputsignalsfromtwo
differentsignalsourcessothattheycansharethedynamicsofthelaserproperly.
Figure 7
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FOI Block Diagram
TheRFdrivelevelsaremeasuredandaccessibleinthewebinterfacesothattheycanbechecked.Inthefuture
alarmlevelsmaybeaddedtothesetestpoints.
Thisin
terfaceisdesignedtoworkwithSCAPCconnectors(7°angledphysicalconnector)andsinglemodefibers
only.Allconnectorsbetweenthemasterunitandtheremoteunitshouldbeofangledtype,otherwiseproblems
withreflectionswillarisewhichmaycausesevereproblemsinthesystem.
Sing
lemodefiber
Angledconnectors
Opticalloss<15dB