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1、incomeinvestmentreturnoninvestment.Toprotectusers'investmentsandperformance,betweennetworkdevicesandcablingmustbeguaranteedfromtheuserterminaltothelengthoftheShallbelessthan100m;levelcontrolwithin95meterscablelengthtopreventtransmissionsignalattenuation
2、.Allcablesmustbelayingconduitorbridge.C.mainsubsystemsusuallylog-Superfive25oncable.Officebuildingduetotheengineeringofcomputerinformationandcommunicationsystemsareover100metres,itproposestoadoptthewayeachpullinformationstraightintotheengineroom,cansave
3、everylayerofmanagementdistributionframe.D.administrativezonessubsystemmanagementareausing110AB2wiringrack,slot,reelandjumperforconnectingtrunksandtwistedeachclient'slevelandfullyinstalledinthecorrespondingboxisequippedwithwall-mountedprotection.Adminare
4、awith110AB2-100F-MDFconstructionmanagementsubsystem.110serieslineper25toonerow,110-100onthewirerackcanendup24pointsofinformation.Eachmanagementpoint,andareequippedwiththeappropriatejumperCCW-F-1PR,CCW-F-2PRtwin/twojumpers,thetwofastest-jumperforjumperco
5、nnectionchanges.E.devicesubsystemdevicesubsystemsnamelytelephoneroomandcomputerroomfromcablesbetweendevices,adaptersandrelatedhardware,equipmentnetworkconnectingvariousdevicesinpublic.Maindistributionframe,thejumpersandtheenclosures.Allcablesarebroughtt
6、ogethertoaworkshoponthesecondfloor,androomsconnectedtoafiberoptic,110PB2-100FTtotalwiringbetweencomputernetworkequipmentracks,110serieslineper25toonerow,110-100onthewirerackcanendup24pointsofinformation.Inthemanagementpoint,withcorrespondingjumperone/tw
7、opairsofjumpers,thetwofastest-jumperforjumperconnectionchangescomputersystemsandphonesystemsExchange,throughthetotalachievedbywiringpatchpanels.F.environmentalrequirementsinformationoutlets:RJ-45embeddedsocketinstalledinwalls,distancesshouldbe30cmfromth
8、eground,fromthepowersupplysocket30cm.Powersupply:dualpowersupply,withareadyandautomaticallyswitchpowertothemanagementpoint.Groundingequipmentcombinedearthingsystem,thegroundingresistanceislessthan1ohm;oraseparateearthingsystem,th
