PDS工程设计过程

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1、InstallationplanningoutlineandchecklistItisrecommendedthatyoufollowthisinstallationplanningoutlineasaguidewhenplanningacablingsystem.1.1.Determinethescopeofthecablingsysteminstallation.lBuildingsize(squaremeterorsquarefeet)lNumberofpeople-Numberofworkareas-Numberof

2、phonesperworkarea-NumberofterminalsperworkarealFunctionalareasaffected-Buildingmaintenancedepartment-Contractors1.2.Reviewbuildingplansforsuitabilityandadaptability.lNumberoffloorslNumberofdatacabinetsavailable-Combinedphoneanddataclosets-Separatephoneanddatacloset

3、slWiringlocation-AbilitytocommunicatewithotherareasofthebuildingduringproblemdeterminationlEnvironmentalsuitability-Temperature/humidity-Dust-Gases-CablerequirementslGrounding-Structure,power,signal,piping,lightningprotection,groundshiftpotential,andcurrentlCabling

4、passageways/channels-Location-Accessibility-Dimensions-CoordinationwithothersystemslFreedomfromelectricalenvironmentcontaminants-Radiatedfrequencyinterference(RFI)-Inducedelectromagneticinterference(EMI)-Electrostaticdischargeinterference(ESD)-Low-frequencyinterfer

5、ence(LFI)2.Documentterminalinventory.lMachinetype3-Model-Quantity-Servicesforeachmachinetype-Relevantspecialfeatures-Devicessupportedbycablingsystem-Devicesthatcouldmigratetothecablingsystem(forexample,typewriterstoofficesystem).1.Documentlogicalnetworkconfiguratio

6、n.lDocumentdataflowbetweenmachines.lDocumentrelatedsoftwaresystems(MVS,DOS/VS,VM,andothers)andsubsystems(CICS,IMS,VTAM,NCP)asrequiredforproblemdetermination.2.Documentphysicalnetworktopology.lObtainbuildingfloorplans.lDeveloporuseexistingcoordinatematrixsystemsotha

7、teachworkareaordatacabinetcanbeuniquelyidentifiedbyitscoordinates.lDrawawiringdiagramsuperimposedoverthefloorplans.-Indicateverticalcableruns-Indicatelocationandsizeofdatacabinet-Indicateplacementofnetworkcomponentateachlocation-Indicatenumberofdrops-Indicatenumber

8、andplacementofundercarpetcabledrops-Usestandardsymbolstorepresentnetworkcomponents-Considerchannelwithattachmentrequirementsoflocalcontrolunits-C