nebs是什么意思s在线翻译读音例句

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ENERGYSOLUTIONS

36NewburghRoad,Hackettstown,NJ07840•Phone:908-850-5088•Fax:908-850-1607•

ThefollowingcopyrightedmaterialisreprintedwithpermissionofLorussoTechnologies,LLC.

WhatisNEBS?

•NEBSstandsfor\"NetworkEquipment-BuildingSystem\"

•NEBSdescribestheenvironmentofatypicalRegionalBellOperating

Company(RBOC)CentralOffice(CO).Thisdescriptionincludesspatial

lequipmentline-upsaredescribed

includingtheenvironmentthey\'reexposedto.

•NEBSwasdevelopedbyBellLabsbackinthe1970stostandardize

entwasto

makeiteasierforavendortodesignequipmentcompatiblewithatypical

uldresultinlowerd雨打梨花深闭门什么意思 evelopmentcostsandeasethe

equipmen西汉历代帝王表 t\'sintroductionintothenetwork.

WhatisthemaindocumentthatmakesupNEBS?

•ThemainBellcoredocumentisGR-63-CORE,NetworkEquipment-

BuildingSystem(NEBS)Requirements:PhysicalProtection

•Thisdocumentidentifiestheminimumspatialande纳兰性德木兰词赏析 nvironmentalcriteria

usedfornewtelecommu春寒料峭的诗句 nic宋朝皇帝列表完整版 ationsequipmenttobeusedinanRBOC\'s

CO.

•Thespatialcriteriacovers:

ocabledistributionsystems

odistributingandinterconnectingframes

opowerequipment

ooperationssupportsystems

ocableentrancefacilities

•Theenvironmentalcriteriacovers:

otemperature&humidity

ofireresistance

oequipmenthandling

oearthquake

oofficevibration&transportationvibration

oairbornecontaminants

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ENERGYSOLUTIONS

36NewburghRoad,Hackettstown,NJ07840•Phone:908-850-5088•Fax:908-850-1607•

oacousticnoise

oillumination

ArethereotherdocumentsthatrelatetoNEBS?

•mportant

sisterdocumentisGR-1089-CORE,ElectromagneticCompatibilityand

ElectricalSafety-GenericCriteriaforNetworkTelecommunications

erwithGR-63-CORE,these2documentsmakeup

what\'sknownasthe\"NEBSCriteria\".

•GR-1089-COREdetailsElectromagneticCompatibility(EMC)andSafety

requirements,including:

oElectrostaticDischarge(ESD)

oElectromagneticInterference(EMI)

RadiatedEmissions-(ElectricFields)

RadiatedEmissions-(MagneticFields)

ConductedEmission(ACPowerLeads-Voltage)

ConductedEmission(ACandDCPowerandSignalLeads-

Current)

ConductedEmission(AnalogVoicebandLeads)

oLightningandACPowerFault

oSteady-StatePowerInduction

oDCPotentialDifference

oElectricalSafety

oCorrosion

oBondingandGrounding

oAnotherimportantdocumentisGR-78-CORE.

oThisdocumentconsistsofmanufacturingandproductdesign

guidelines.

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ENERGYSOLUTIONS

36NewburghRoad,Hack檐组词 ettstown,NJ07840•Phone:908-850-5088•Fax:908-850-1607•

Whatis\"NEBSLevel3\"?

•\"NEBSLevel3\"isatermfromBellcorespecialreport,

reportdetails3distinctfunctionallevelsofNEBScompliancebasedon

elsallowawiderangeof

NEBSrequirementstobeappliedtoequipmentbasedonapplicationand

networkimpact.

•\"NEBSLevel1\"meansthatpeopleandequipmenthazardsandnetwork

vel1addressesthepersonneland

equipmentsafetyrequirementsofGR-63-COREandGR-1089-CORE.

\'salsoarequirement

thatisimposedonCompetitiveLocalExchangeCarrie描写春天来了的诗句 rs(CLECs)inorder

forthemtodeployequipmentintoanRBOC\'veldoesn\'t

addressoperability,thisisaddressedinLevels2and3.

•\"NEBSLevel2\"address花落知多少吉他谱 esequipmentoperability,butinacontrolled

mple,equipmentcouldbeusedinadatacenter,

however,ift西塞山怀古拼音版 heequipmentperformsnon-criticaloperationsitcouldbe

atthislevelisveryrarely

usedbecauseitisambiguous.

•\"NEBSLevel3\"meanstheequipmentisinthenetworkforthelonghaul.

We\'ipment

anutshell,theequipmentm天低树野旷天低树 eetsalloftherequirementsofGR-63-CORE

andGR-1089-CORE.

oNOTES:

etheirownNEBS

checklist,.2000.004,thatdetailswhatthey

believeareimportanttotheirnetwork\'sintegrity.

SBCuses2levelsasdetailedintheirNEBSchecklistTP76200MP.

DotheRBOCshaverequirementsoverandaboveNEBS?

Verizon,BellSouth,Qwest,andSBCallhaverequirementsoverandabove

NEBS.(SeetheapplicablecorporatewebsitesforindividualNEBScriteria)

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ENERGYSOLUTIONS

36NewburghRoad,Hackettstown,NJ07840•Phone:908-850-5088•Fax:908-850-1607•

HelpfulWebSites:

TheVerizonNEBSwebsiteprovidescurrentinformationaboutVerizon\'s

NEBSComplianceprograms.

METperformstherequiredNEBStestingandNationallyRecognized

TestingLaboratory(NRTL)\'s

twocompleteNEBSfacilitiesarelocatedinBaltimore,Marylandand

UnionCity,esignatedbyVerizontobean

IndependentTestLaboratoryforNEBSCertification.