Fiberplex WDM8 Manual de usuario descargar pdf (Pagina 7)

PowerRedundancy

Inordertoremainfunctional,evenintheeventofcomponentfailures,theWDMemploysthefollowingredundancies:



Twopowersupplyslots,withloadequalizingandprotectioncircuitryonthebackplane.Eachsupplyhasthermalandovercurrent

protection.



Eachchannelhasitsownindependentpowersupplythatrunsoff

ofthemainpowerrails,sothatafailureinonechannelwillleave

theothersoperational.



Thereisamicroprocessorintheunit,butitsfunctionispurelymonitoring.Ifitfails,thedatawillcontinuetoflowunimpededonall

opticalchannels.



Therearetwoindependent

fancontrolchannels,andtwocoolingfansoneachsideoftheunit.

DifferencesbetweenWDM16,WDM8AandWDM8B

ThefunctionalandphysicalcharacteristicsoftheWDM16,WDM8AandWDM8Barelargelyidentical.Thesingledifferentiatoristhenumber

ofActiveWaveDivisionchannelsandtheassociatedinternalwavelengthsthataresupported.Thechassisdimensionsandpowersupplies

remainidentical.

TheWDM16supportsallofthe16standardCWDMwavelengths

of1310‐1610nm,whereastheWDM8unitssupportonly8ofthose

channels,sotheinstallationcanbescaledtotheappropriatesize.TheWDM8Asupportstheupper8wavelengths1470‐1610nmandthe

WDM8Bsupportsthelower8wavelengths1310‐1450nm.BecauseoftheenormouslyflexibleactivenatureoftheWDM16/8,the

wavelengthsoftheinternalchannelsarebasicallyinvisible andevenirrelevanttotheenduser.Thereasonstherearetwosubsetsof

wavelengthssupportedthroughtheWDM8AandWDM8Bisforfutureexpandabilityofthelineinprovidingthepossibilityofadd/drop,

combiningandsplitting

capability.

Whenonly8channelpointtopointfunctionalityisdesired,theWDM8Ashouldbethemodelofchoice.



Model Channels InternalWavelengths

WDM16 16 1310‐1610nm

WDM8A 8 1470‐1610nm

WDM8B 8 1310‐1450nm

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Fiberplex WDM8 Manual de usuario Pagina 7