ANSI/SCTE 101-2011 电源线绞接件连接器回波损耗
作者:标准资料网 时间:2024-05-09 22:15:55 浏览:9442
来源:标准资料网
【英文标准名称】:?MainlineSpliceConnectorReturnLoss
【原文标准名称】:电源线绞接件连接器回波损耗
【标准号】:ANSI/SCTE101-2011
【标准状态】:现行
【国别】:美国
【发布日期】:2011
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Analyzers;Cablecommunication;Cables;Communicationtechnology;Connectors;Domain;Features;Implements;Interfaces;Mainlines;Measurement;Network;Returnloss;Single;Splices;Tests;Time;Transmissiontechnique
【摘要】:ThisdocumentdescribesaproceduretomeasuretheReturnLosscharacteristicsofasingleMainlineSpliceConnectorinterfacedbetween(2)mainlinecables.Itimplementsthetimedomain-gatingfeaturesofthenetworkanalyzers,whichremovestheinterfaces,andfarendterminationfromtheDUT(deviceundertest)measurement.
【中国标准分类号】:L23
【国际标准分类号】:31_220_10
【页数】:
【正文语种】:英语
【英文标准名称】:Roughterraintrucks-Stabilitytests
【原文标准名称】:越野叉车稳定性试验
【标准号】:ISO8379-1998
【标准状态】:作废
【国别】:国际
【发布日期】:1998-07
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC110
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;不平地带车辆;叉车;装卸设备;地面输送运载工具;工业卡车;起重卡车;稳定性试验;稳定性
【英文主题词】:Forktrucks;Groundconveyorvehicles;Handlingequipment;Industrialtruck;Lifttrucks;Rough-terrainvehicles;Stability;Stabilitytests;Tests
【摘要】:ThisInternationalStandardspecifiesthebasicteststoverifythestabilityofroughterrainlifttrucksandroughterrainvariablereachtrucks.Itisapplicabletotheabovetrucks:-withaseatedoperator;-fittedwithforkarmsorattachments;-withfixedorarticulatedchassis;-whichmayhavestabilizers,axle-lockingorframe-levellingdevices;-withtwo-orfour-wheelorarticulatedsteeringsystems;-withmastswithorwithouttiltmechanisms;-withnon-slewingboomsorhavingslewingmovementnotgreaterthan5°eithersideofthelongitudinalcentre-plane.ThisInternationalStandardisnotapplicabletotruckswhenhandlingsuspendedloadswhichmayswingfreely.
【中国标准分类号】:T44
【国际标准分类号】:53_060
【页数】:13P.;A4
【正文语种】:英语
【英文标准名称】:Industrialcommunicationnetworks-Fieldbusspecifications-Part3-2:Data-linklayerservicedefinition-Type2elements(IEC61158-3-2:2007);EnglishversionEN61158-3-2:2008,onlyonCD-ROM
【原文标准名称】:工业通讯网络.现场总线规范.第3-2部分:数据联络层设备定义.2型元件.仅为CD-ROM
【标准号】:DINEN61158-3-2-2008
【标准状态】:现行
【国别】:德国
【发布日期】:2008-09
【实施或试行日期】:2008-09-01
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:总线系统;总线;电路网络;通信;控制设备;控制系统;控制工艺学;数据通信;数据链层;数据连接系统;数据处理;数据设备;数据传送;定义;数字的;数字数据;数字工程;电子数据处理;电气工程;电子仪器;电子系统;英语;现场总线;制导系统;工业的;工业设施;信息交换;信息处理;信息技术;接口(数据处理);链路层;开放系统互连;OSI;过程控制;过程控制工程;过程控制系统;信号;规范;规范(验收);传输媒质
【英文主题词】:Bussystems;Buses(dataprocessing);Circuitnetworks;Communication;Controlequipment;Controlsystems;Controltechnology;Datacommunication;Datalinklayers;Datalinksystem;Dataprocessing;Dataservices;Datatransfer;Definition;Definitions;Digital;Digitaldata;Digitalengineering;EDP;Electricalengineering;Electronicinstruments;Electronicsystems;Englishlanguage;Fieldbus;Guidancesystems;Industrial;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces(dataprocessing);Linklayers;Opensystemsinterconnection;OSI;Processcontrol;Processcontrolengineering;Processcontrolsystems;Signals;Specification;Specification(approval);Transmissionmedia
【摘要】:1.1OverviewThispartofIEC61158providescommonelementsforbasictime-criticalmessagingcommunicationsbetweendevicesinanautomationenvironment.Theterm“time-critical”isusedtorepresentthepresenceofatime-window,withinwhichoneormorespecifiedactionsarerequiredtobecompletedwithsomedefinedlevelofcertainty.Failuretocompletespecifiedactionswithinthetimewindowrisksfailureoftheapplicationsrequestingtheactions,withattendantrisktoequipment,plantandpossiblyhumanlife.ThisstandarddefinesinanabstractwaytheexternallyvisibleserviceprovidedbytheType2fieldbusdata-linklayerintermsofa)theprimitiveactionsandeventsoftheservice;b)theparametersassociatedwitheachprimitiveactionandevent,andtheformwhichtheytake;andc)theinterrelationshipbetweentheseactionsandevents,andtheirvalidsequences.Thepurposeofthisstandardistodefinetheservicesprovidedto:?theType2fieldbusapplicationlayerattheboundarybetweentheapplicationanddata-linklayersofthefieldbusreferencemodel;?systemsmanagementattheboundarybetweenthedata-linklayerandsystemsmanagementofthefieldbusreferencemodel.Type2DL-serviceprovidesbothaconnectedandaconnectionlesssubsetofthoseservicesspecifiedinISO/IEC8886.1.2SpecificationsTheprincipalobjectiveofthisstandardistospecifythecharacteristicsofconceptualdata-linklayerservicessuitablefortime-criticalcommunicationsandthussupplementtheOSIBasicReferenceModelinguidingthedevelopmentofdata-linkprotocolsfortime-criticalcommunications.Asecondaryobjectiveistoprovidemigrationpathsfrompreviously-existingindustrialcommunicationsprotocols.ThisspecificationmaybeusedasthebasisforformalDL-Programming-Interfaces.Nevertheless,itisnotaformalprogramminginterface,andanysuchinterfacewillneedtoaddressimplementationissuesnotcoveredbythisspecification,including:a)thesizesandoctetorderingofvariousmulti-octetserviceparameters;b)thecorrelationofpairedrequestandconfirm,orindicationandresponse,primitives.1.3ConformanceThisstandarddoesnotspecifyindividualimplementationsorproducts,nordoesitconstraintheimplementationsofdata-linkentitieswithinindustrialautomationsystems.Thereisnoconformanceofequipmenttothisdata-linklayerservicedefinitionstandard.Instead,conformanceisachievedthroughimplementationofthecorrespondingdata-linkprotocolthatfulfillstheType1data-linklayerservicesdefinedinthisstandard.
【中国标准分类号】:N18;P76
【国际标准分类号】:35_100_20;35_160;35_240_50
【页数】:49P.;A4
【正文语种】:英语
