cable_tester ethernet cable and local area networks

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1、CableEthernetCableAndLocalAreaNetworksEthernetisatechnologyusedtomanageLocalAreaNetworks(LANs)andfollowsIEE802.3standards.TherearemanytypesofcablingusedforEthernet:*10Base5:Alsocalledthicknetwithmaximumlengthof500meters.Thebustopographyisfollowedusing75ohmcoaxialcable.*10Base

2、2:Alsocalledasthiknetwithmaximumlengthof200meters.ThebustopographyisfollowedusingRJ-58coaxialcablewitheachdevicehavingBNCTconnectors.*10BaseT:Followsstartopographyusingtwistedpairwiresconnectingeachdevicetoahub.Thistypeofcablingdefinesneedforelectricalpropertiesoftheentirewir

3、ing.Theserequirementsaretestedbyusingcabletester.*10Broad36:Operatesonclosed-circuitcabletelevisionsystemsandisbasedonbroadbandEthernetdesign.TheEthernetcablesarelongerwithlotsofwires.ToconnectEthernetcabletoyoursystem,connectthesystemtotheEthernetjack.Openthewebbrowserandyou

4、willbeaskedtoenteryourauthenticationdetails.InitiallyEthernetcablinginvolvedcoaxialcablesactingasthemeanofcommunicationoveraLAN.ThenetworkmanagedormadebyusingEthernetcablesusedtobecomplexuntiltheuseoftwistedpaircablestoreducetheinstallationcost,tomanagepoint-to-pointconnectio

5、nandtoincreasereliability.EthernetcablecolorcodeTheEthernetcablesfollowcertaincolorcodeforwiring,whichifnotarrangedproperlymaycauselossofconnectivity.Therearetwostandardsthatarebeingfollowed,theTIA/EIA568-AstandardandtheTIA/EIA568-Bstandard.TheTIA/EIA568-Bisanupdatedversionof

6、TIA/EIA568-A.BothofthemspecifytheT-568AandT-568Bpin-outstouseunshieldedtwistedpairandRJconnectors.NormallystandardstraightthroughcablesareusedforEthernetconnections.OneendofthecableshouldbewiredusingT-568AstandardwhiletheotherendshouldbewiredusingT-568Bstandardinordertorememb

7、erthecolorscheme.TowireEthernetcableTowireanEthernetcablethevarioustoolsthatarerequiredareaCAT5cable,RJ45connectors,acrimper,wirecutters,cabletesterandwirestripper.Thecableconsistsofeightwirescoveredwithanoutersheathorajacket.Eachpairfollowsaparticularcolorcoding,i.e.,asolidc

8、oloredwirepairedwithawireofwhitebackgroundwithstripesofthesamecolor.