C855-2G4R-54中文资料
SN54LS02FK中文资料
PACKAGING INFORMATIONOrderable Device Status(1)PackageType PackageDrawingPins PackageQtyEco Plan(2)Lead/Ball Finish MSL Peak Temp(3)JM38510/00401BCA ACTIVE CDIP J141TBD Call TI Level-NC-NC-NCJM38510/00401BDA ACTIVE CFP W141TBD Call TI Level-NC-NC-NCJM38510/00401BDA ACTIVE CFP W141TBD Call TI Level-NC-NC-NCJM38510/07301BCA ACTIVE CDIP J141TBD Call TI Level-NC-NC-NCJM38510/07301BCA ACTIVE CDIP J141TBD Call TI Level-NC-NC-NCJM38510/07301BDA ACTIVE CFP W141TBD Call TI Level-NC-NC-NCJM38510/07301BDA ACTIVE CFP W141TBD Call TI Level-NC-NC-NCJM38510/30301B2A ACTIVE LCCC FK201TBD Call TI Level-NC-NC-NCJM38510/30301B2A ACTIVE LCCC FK201TBD Call TI Level-NC-NC-NCJM38510/30301BCA ACTIVE CDIP J141TBD Call TI Level-NC-NC-NCJM38510/30301BCA ACTIVE CDIP J141TBD Call TI Level-NC-NC-NCJM38510/30301BDA ACTIVE CFP W141TBD Call TI Level-NC-NC-NCJM38510/30301BDA ACTIVE CFP W141TBD Call TI Level-NC-NC-NCJM38510/30301SCA ACTIVE CDIP J141TBD Call TI Level-NC-NC-NCJM38510/30301SCA ACTIVE CDIP J141TBD Call TI Level-NC-NC-NCJM38510/30301SDA ACTIVE CFP W141TBD Call TI Level-NC-NC-NCJM38510/30301SDA ACTIVE CFP W141TBD Call TI Level-NC-NC-NC SN5402J ACTIVE CDIP J141TBD Call TI Level-NC-NC-NC SN5402J ACTIVE CDIP J141TBD Call TI Level-NC-NC-NC SN54LS02J ACTIVE CDIP J141TBD Call TI Level-NC-NC-NC SN54LS02J ACTIVE CDIP J141TBD Call TI Level-NC-NC-NC SN54S02J ACTIVE CDIP J141TBD Call TI Level-NC-NC-NC SN54S02J ACTIVE CDIP J141TBD Call TI Level-NC-NC-NC SN7402N ACTIVE PDIP N1425Pb-Free(RoHS)CU NIPDAU Level-NC-NC-NCSN7402N ACTIVE PDIP N1425Pb-Free(RoHS)CU NIPDAU Level-NC-NC-NC SN7402N3OBSOLETE PDIP N14TBD Call TI Call TISN7402N3OBSOLETE PDIP N14TBD Call TI Call TISN7402NE4ACTIVE PDIP N1425Pb-Free(RoHS)CU NIPDAU Level-NC-NC-NCSN7402NE4ACTIVE PDIP N1425Pb-Free(RoHS)CU NIPDAU Level-NC-NC-NCSN74LS02D ACTIVE SOIC D1450Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN74LS02D ACTIVE SOIC D1450Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN74LS02DE4ACTIVE SOIC D1450Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN74LS02DE4ACTIVE SOIC D1450Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN74LS02DR ACTIVE SOIC D142500Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN74LS02DR ACTIVE SOIC D142500Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMOrderable Device Status(1)PackageType PackageDrawingPins PackageQtyEco Plan(2)Lead/Ball Finish MSL Peak Temp(3)SN74LS02DRE4ACTIVE SOIC D142500Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN74LS02DRE4ACTIVE SOIC D142500Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74LS02J OBSOLETE CDIP J14TBD Call TI Call TISN74LS02J OBSOLETE CDIP J14TBD Call TI Call TISN74LS02N ACTIVE PDIP N1425Pb-Free(RoHS)CU NIPDAU Level-NC-NC-NCSN74LS02N ACTIVE PDIP N1425Pb-Free(RoHS)CU NIPDAU Level-NC-NC-NC SN74LS02N3OBSOLETE PDIP N14TBD Call TI Call TISN74LS02N3OBSOLETE PDIP N14TBD Call TI Call TISN74LS02NE4ACTIVE PDIP N1425Pb-Free(RoHS)CU NIPDAU Level-NC-NC-NCSN74LS02NE4ACTIVE PDIP N1425Pb-Free(RoHS)CU NIPDAU Level-NC-NC-NCSN74LS02NSR ACTIVE SO NS142000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN74LS02NSR ACTIVE SO NS142000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN74LS02NSRG4ACTIVE SO NS142000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN74LS02NSRG4ACTIVE SO NS142000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN74S02D ACTIVE SOIC D1450Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN74S02D ACTIVE SOIC D1450Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN74S02DE4ACTIVE SOIC D1450Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN74S02DE4ACTIVE SOIC D1450Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74S02DR OBSOLETE SOIC D14TBD Call TI Call TISN74S02DR OBSOLETE SOIC D14TBD Call TI Call TISN74S02N ACTIVE PDIP N1425Pb-Free(RoHS)CU NIPDAU Level-NC-NC-NCSN74S02N ACTIVE PDIP N1425Pb-Free(RoHS)CU NIPDAU Level-NC-NC-NC SN74S02N3OBSOLETE PDIP N14TBD Call TI Call TISN74S02N3OBSOLETE PDIP N14TBD Call TI Call TISN74S02NE4ACTIVE PDIP N1425Pb-Free(RoHS)CU NIPDAU Level-NC-NC-NCSN74S02NE4ACTIVE PDIP N1425Pb-Free(RoHS)CU NIPDAU Level-NC-NC-NC SNJ5402J ACTIVE CDIP J141TBD Call TI Level-NC-NC-NC SNJ5402J ACTIVE CDIP J141TBD Call TI Level-NC-NC-NC SNJ5402W ACTIVE CFP W141TBD Call TI Level-NC-NC-NC SNJ5402W ACTIVE CFP W141TBD Call TI Level-NC-NC-NC SNJ54LS02FK ACTIVE LCCC FK201TBD Call TI Level-NC-NC-NCOrderable Device Status(1)PackageType PackageDrawingPins PackageQtyEco Plan(2)Lead/Ball Finish MSL Peak Temp(3)SNJ54LS02FK ACTIVE LCCC FK201TBD Call TI Level-NC-NC-NC SNJ54LS02J ACTIVE CDIP J141TBD Call TI Level-NC-NC-NC SNJ54LS02J ACTIVE CDIP J141TBD Call TI Level-NC-NC-NC SNJ54LS02W ACTIVE CFP W141TBD Call TI Level-NC-NC-NC SNJ54LS02W ACTIVE CFP W141TBD Call TI Level-NC-NC-NC SNJ54S02FK ACTIVE LCCC FK201TBD Call TI Level-NC-NC-NC SNJ54S02FK ACTIVE LCCC FK201TBD Call TI Level-NC-NC-NCSNJ54S02J ACTIVE CDIP J141TBD Call TI Level-NC-NC-NCSNJ54S02J ACTIVE CDIP J141TBD Call TI Level-NC-NC-NCSNJ54S02W ACTIVE CFP W141TBD Call TI Level-NC-NC-NCSNJ54S02W ACTIVE CFP W141TBD Call TI Level-NC-NC-NC(1)The marketing status values are defined as follows:ACTIVE:Product device recommended for new designs.LIFEBUY:TI has announced that the device will be discontinued,and a lifetime-buy period is in effect.NRND:Not recommended for new designs.Device is in production to support existing customers,but TI does not recommend using this part in a new design.PREVIEW:Device has been announced but is not in production.Samples may or may not be available.OBSOLETE:TI has discontinued the production of the device.(2)Eco Plan-The planned eco-friendly classification:Pb-Free(RoHS)or Green(RoHS&no Sb/Br)-please check /productcontent for the latest availability information and additional product content details.TBD:The Pb-Free/Green conversion plan has not been defined.Pb-Free(RoHS):TI's terms"Lead-Free"or"Pb-Free"mean semiconductor products that are compatible with the current RoHS requirements for all6substances,including the requirement that lead not exceed0.1%by weight in homogeneous materials.Where designed to be soldered at high temperatures,TI Pb-Free products are suitable for use in specified lead-free processes.Green(RoHS&no Sb/Br):TI defines"Green"to mean Pb-Free(RoHS compatible),and free of Bromine(Br)and Antimony(Sb)based flame retardants(Br or Sb do not exceed0.1%by weight in homogeneous material)(3)MSL,Peak Temp.--The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications,and peak solder temperature.Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided.TI bases its knowledge and belief on information provided by third parties,and makes no representation or warranty as to the accuracy of such information.Efforts are underway to better integrate information from third parties.TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or 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北京四方-280系列数字式保护(测控)装置说明书(0SF.451.069)_V2.0
2.7
输出触点容量............................................................................................................................ 4
2.8
装置主要技术参数.................................................................................................................... 4
3.2
装置功能组件概述.............................ห้องสมุดไป่ตู้...................................................................................... 6
3.3
交流插件（AC） ...................................................................................................................... 7
2.5
热性能（过载能力）................................................................................................................ 4
2.6
功率消耗 ................................................................................................................................... 4
AD8554资料
FEATURES Low Offset Voltage: 1 V Input Offset Drift: 0.005 V/ ؇ C Rail-to-Rail Input and Output Swing +5 V/+2.7 V Single-Supply Operation High Gain, CMRR, PSRR: 130 dB Ultralow Input Bias Current: 20 pA Low Supply Current: 700 A/Op Amp Overload Recovery Time: 50 s No External Capacitors Required APPLICATIONS Temperature Sensors Pressure Sensors Precision Current Sensing Strain Gage Amplifiers Medical Instrumentation Thermocouple Amplifiers GENERAL DESCRIPTION
Parameter INPUT CHARACTERISTICS␣ Offset Voltage Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain1 Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage High VOS IB IOS CMRR AVO ∆VOS /∆T VOH
NC ؊IN A ؉IN A V؊
Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifiers AD8551/AD8552/AD8554
国内外压敏电阻型号及参数
国内外压敏电阻型号及参数压敏电阻220V电压的电路国内型号：MYG14K471（对应的国外型号：US 470NR-14D）MYG05K471（对应的国外型号：US 470NR-5D）22V左右的电路国内型号：MYG14K470（对应的国外型号：US 470NR-14D）MYG05K470（对应的国外型号：US 470NR-5D）。
压敏电阻型号及参数压敏电阻百科名片压敏电阻“压敏电阻"是中国大陆的名词，意思是在一定电流电压范围内电阻值随电压而变，或者是说"电阻值对电压敏感"的阻器。
英文名称叫“Voltage Dependent Resistor”简写为“VDR”,或者叫做“Varistor"。
压敏电阻器的电阻体材料是半导体，所以它是半导体电阻器的一个品种。
现在大量使用的"氧化锌"（ZnO）压敏电阻器，它的主体材料有二价元素（Zn）和六价元素氧（O）所构成。
所以从材料的角度来看，氧化锌压敏电阻器是一种“Ⅱ-Ⅵ族氧化物半导体”。
在中国台湾，压敏电阻器称为"突波吸收器",有时也称为“电冲击（浪涌）抑制器（吸收器）”。
目录[隐藏]1、压敏电阻电路的“安全阀”作用2、压敏电阻的应用类型3、保护用压敏电阻的基本性能4. 压敏电阻的基本参数1、压敏电阻电路的“安全阀”作用2、压敏电阻的应用类型3、保护用压敏电阻的基本性能4. 压敏电阻的基本参数[编辑本段]1、压敏电阻电路的“安全阀”作用压敏电阻有什么用？压敏电阻的最大特点是当加在它上面的电压低于它的阀值" UN"时，流过它的电流极小，相当于一只关死的阀门，当电压超过UN时，流过它的电流激增，相当于阀门打开。
利用这一功能，可以抑制电路中经常出现的异常过电压，保护电路免受过电压的损害。
[编辑本段]2、压敏电阻的应用类型不同的使用场合，应用压敏电阻的目的，作用在压敏电阻上的电压/电流应力并不相同，因而对压敏电阻的要求也不相同，注意区分这种差异，对于正确使用是十分重要的。
(任务一)彩色电视机电路综合分析方法介绍
( 任 务 一 彩 色 电 视 机 电 路 综 合 分 析 方 法 介 绍 ⑷、复合同步信号流程
为了进一步提高电视信号的稳定性，本机设有两 个同步分离电路。见以下方框图4-2所示。
)
图4-2 熊猫牌C54P38型彩色电视机 同步信号与行、场扫描信号流程图
( 任 务 一 彩 色 电 视 机 电 路 综 合 分 析 方 法 介 绍 行同步分离电路是由R610, C602,VD604等元件和 TA7698AP内部的同步分离电路共同组成。从N801的 40脚输出的全电视信号FBAS经 同步分离电路分离出 复合同步信号，一路在D7698AP内部直接送往行AFC 电路，去控制行振荡频率。场同步分离电路是由R606、 C607、R607、C608等元件构成。D7680AP的15脚输 出的全电视信号先经过L402和L407送音视频转换芯片 （12）脚，然后从（14）脚输出，经过C905耦合后到 进入D7698AP的（39）脚，在从（40）脚倒相输出 FBAS信号，经过R610、C602、VD604等元件组成的 行同步分离电路分离出复合同步信号送D7698AP的 （27）脚，然后从D7698AP的（26）脚输出复合同步 信号，再由R606, C607, R607, C608等组成的积分电 路从复合同步信号中分离出场同步信号。场同步信号 经C609耦合到TA7698AP的28脚，去控制场振荡频率。 )
2、围绕芯片，理顺信号 首先要根据整机电路图的结构形式，弄清是有哪块芯 片来完成相应电路的功能，然后根据芯片引脚功能来 判断信号的流程，具体可以根据以下思路理顺信号
)
( 任 务 一 彩 色 电 视 机 电 路 综 合 分 析 方 法 介 绍 ①高频电视图像信号从天线进入电视机，经过哪些电路和 哪些信号转换最终到达显像管。 ②高频伴音载频信号从天线进来后，经过哪些电路与哪些 信号转换到达扬声器。 ③同步信号从中频图像检波电路输出后，是经过哪些电路 和哪些信号转换到达行、场扫描的振荡电路。 ④行、场扫描信号是从振荡电路经过哪些电路到达行场偏 转线圈的。 ⑤高频电视载波信号从天线进入后经过高频头、中放电路 到检波电路以后才分离出图像信号、伴音信号、复合同步 信号等，分别送到解码电路、伴音电路和同步分离等对应 电路去。 通过以上过程，可以了解电视机中各信号在传输过程中进 行了哪些变化或变换，了解信号经过的各个电路的作用与 工作原理。这也是彩色电视机维修时判别故障部位的主要 依据。 )
常用集成芯片
常用芯片作用2007-07-30 16:40mc2831(mc2833)低功耗FM发射机mc3362低功耗FM接收机CXA1691BM收音机FM/AM接收芯片双音频编码器件是HM9187，解码芯片是MT8870(注意：HM9187输出的双音频信号幅值太大了，串联一个160K的电阻，送到M 幅度,幅度过高会导致窄带FM的调制/解调出问题.)ICL8038 单片集成压控波形发生器(应用广泛)，在0.01～300kHz的范围里可以同时产生正弦波、矩形波和三角波。
使用时只作为压控振荡器、调频信号发生器或单片函数发生器。
其输出电平特性为:方波0.2V suppl y(2mA)；三角波幅度为0.33V suppl y，输出阻22V supply，输出阻抗典型值为1kΩ。
MC145151 -2 锁相环芯片，是MC145151-1的性能改进产品，功耗降低而ESD和锁定性能则大有改进。
MC145151-2分别用N计数器和R计数器编程。
本器件集成了参考振荡器、可选参考频率分频器、数字相位鉴相器和14位可编程的除N计数器。
该芯工艺而具有低功耗，电压范围为3～9V；具有片上或离片参考振荡器的操作条件；有两路鉴相信号输出，其中PD out是鉴相器A的是鉴相误差信号，LD用来输出相位锁定信号；除N的范围为3～16383；8个用户可选的除R值分别为8、128、256、512、1应RA2~RA0从000到111的8个状态。
1.音频pcm编码DA转换芯片cirrus logic的cs4344，cs4334 。
4334是老封装，据说已经停产，4344封装比较小，非常好用2.音频放大芯片4558，LM833，5532,此二芯片都是双运放。
3.244和245，由于244是单向a=b的所以只是单向驱动。
而245是用于数据总线等双向驱动选择。
同时245的封装走线非常适4.373和374，地址锁存器，5.max232和max202，max3232 TTL电平转换6.网络接口变压器。
常用三极管参数大全
玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理玉林万顺达电脑芯片级维修资料 2010-07-20整理。
电磁保护设备TeSys GV系列产品参数表说明书
C i r c u i t b r e a k e r sCircuit breakersTeSys GV, GBC ontrol and P rotection C omponentsChapterB60.75g g 1.1g g 1.5375 2.533.5 LR2 K0308GV2LE071.1g g –––––– 2.533.5 LR2 K0308GV2LE071.5g g 1.5g g 3375451 LR2 K0310GV2LE08––– 2.2g g –––451 LR2 K0312GV2LE082.2g g 3501004375 6.378 LR2 K0312GV2LE103g g 410100 5.537510138 LR2 K0314GV2LE144g g 5.510100–––10138 LR2 K0316GV2LE14––––––7.537510138 LRD 14GV2LE14––––––937514170 LRD 16GV2LE165.515507.56751137514170 LR2 K0321GV2LE167.5155096751537518223 LRD 21GV2LE20915401147518.537525327 LRD 22GV2LE2211154015475–––25327 LRD 22GV2LE2215105018.54752237532416LRD 32GV2LE32(1) As % of Icu.g ) > 100 kA.GV2 LE10D F 526144.t i fC i r c u i t b r e a k e r s0.09––––––0.45LRD 03GV2L030.12g g –––0.37g g 0.638LRD 04GV2L040.18g g ––––––0.638LRD 04GV2L04––––––0.55g g 113LRD 05GV2L050.25g g ––––––113LRD 05GV2L05––––––0.75g g 113LRD 06GV2L050.37g g 0.37g g –––113LRD 05GV2L050.55g g 0.55g g 1.1g g 1.622.5LRD 06GV2L06–––0.75g g ––– 1.622.5LRD 06GV2L060.75g g 1.1g g 1.54100 2.533.5LRD 07GV2L07Example: GV3 L32 becomes GV3 L326.(1) As % of Icu. Associated current limiter or fuses, where required. See characteristics page B6/33.g > 100 kA.GV2 L10D F 526145.t i fGV3 L65D F 526146.t i fTeSys GVThermal-magnetic motor circuit breakers GV2 ME0.06gg––––––0.16…0.252.4GV2ME020.09g g––––––0.25…0.405GV2ME030.12 0.18g g g g – –– –– – 0.37 –g–g –0.40…0.638GV2ME040.25gg––– 0.55gg0.63…113GV2ME050.37 0.55 –g g –g g –0.37 0.55 0.75g g g g g g – 0.75 1.1– g g – g g 1…1622.5GV2ME060.75g g1.1gg1.5375 1.6...2.533.5GV2ME071.1 1.5g g g g 1.5 2.2g g g g 2.2 3 3 375 75 2.5 (4)51GV2ME082.2gg350100 43754...6.378GV2ME103 4g g g g 4 5.510 10100 100 5.5 7.5 3 375 756 (10)138GV2ME145.5 –15 –50 –7.5 – 6 –75 – 9 11 3 375 759…14170GV2ME167.5155096751537513…18223GV2ME209154011475 18.537517…23327GV2ME2111154015475 –––20…25327GV2ME22 (3)15105018.54752237524 (32)416GV2ME32Motor circuit breakers from 0.06 to 15 kW / 400 V, with lugsTo order thermal magnetic circuit breakers with connection by lugs, add the digit 6 to the end of reference selected above.Example: GV2 ME08 becomes GV2 ME086.Thermal magnetic circuit breakers GV2 ME with built-in auxiliary contact block With instantaneous auxiliary contact block (composition, see page B6/11):b GV AE1, add suffix AE1TQ to the motor circuit breaker reference selected above. Example: GV2 ME01AE1TQ .b GV AE11, add suffix AE11TQ to the motor circuit breaker reference selected above. Example: GV2 ME01AE11TQ .b GV AN11, add suffix AN11TQ to the motor circuit breaker reference selected above. Example: GV2 ME01AN11TQ .These circuit breakers with built-in contact block are sold in lots of 20 units in a single pack.(1) As % of Icu.(2) The thermal trip setting must be within the range marked on the graduated knob.(3) Maximum rating which can be mounted in enclosures GV2 MC or MP , please consult your Regional Sales Office. g > 100 kA.GV2 ME10D F 526134.t i fC i r c u i t b r e a k e r sTeSys GVTeSys protection componentsThermal-magnetic motor circuit breakers GV2 MEReferences0.06g g ––– 0.16…0.25 2.4GV2ME0230.09g g ––– 0.25…0.405GV2ME0330.120.18g g g g –––0.40…0.638GV2ME0430.250.37g g g g 0.37g g 0.63…113GV2ME0530.370.55g g g g 0.370.550.75g g g g g g 1…1.622.5GV2ME0630.75g g1.1g g 1.6…2.533.5GV2ME0731.11.5g g g g 1.52.2g g g g 2.5…451GV2ME0832.2g g 350100 4…6.378GV2ME10334g g g g 45.510101001006…10138GV2ME1435.515507.5675 9…14170GV2ME1637.515509675 13…18223GV2ME203911151540401147517…23327GV2ME2131115401547520 (25)327GV2ME223Contact blocksDescription Mounting Maximum number Type of contacts Sold in lots of Unitreference Instantaneous auxiliary contactsFront 1N/O + N/C 10GVAE113N/O + N/O 10GVAE203LH side2N/O + N/C 1GVAN113N/O + N/O1GVAN203AccessoryDescriptionApplicationSold in lots of Unitreference Cable end reducerFor connection of conductors from 1 to 1.5 mm 220LA9D99(1) For connection of conductors from 1 to 1.5 mm 2, the use of an LA9 D99 cable end reducer is recommended.(2) Maximum rating which can be mounted in enclosures GV2 MC or MP , please consult your Regional Sales Office (3) The thermal trip setting must be within the range marked on the graduated knob.g > 100 kA.GV2 ME pp 3D F 526135.t i fLA9 D99D F 533898.e p sTeSys GVReferencesTeSys protection componentsThermal-magnetic motor circuit breakersGV2 P, GV3 P and GV3 ME80GV2 P10D F 526137.t i fGV3 P65D F 526139.t i fGV3 P651D F 526140.t i fC i r c u i t b r e a k e r sTeSys GVReferences93610011181001581007.59707010010091150501001001115101010010012…20GV7RS20 2.0109113636100100111518181001001518.58810010015…25GV7RE25 2.0109117070100100111550501001001518.5101010010015…25GV7RS25 2.01018.53610018.522181810010022810025…40GV7RE40 2.01018.57010018.550100221010025…40GV7RS40 2.0102236100301810030810030…50GV7RE50 2.01522701003050100301010030 (50)GV7RS502.01537361004555181810010055810048...80GV7RE80 2.040377010045555050100100551010048...80GV7RS80 2.0404536100–1810075810060...100GV7RE100 2.0404570100–50100751010060...100GV7RS100 2.0405575353510010075903030100100901108810010090 (150)GV7RE1502.020557570701001007590505010010090110101010010090…150GV7RS150 2.02090110353510010011013216030303010010010016020088100100132…220GV7RE220 2.3509011070701001001101321605050501001001001602001010100100132…220GV7RS220 2.350(1) As % of lcu.TeSys protection componentsThermal-magnetic motor circuit breakers GV7 RGV7 RE40D F 526138.t i fGV7 RS220D F 526141.t i f0.12–0.120.180.18–0.370.40…0.6313GV2RT040.090.120.250.370.250.370.370.550.63…122GV2RT050.180.250.370.550.370.550.370.550.750.751.11…1.633GV2RT060.370.750.751.1 1.11.51.6…2.551GV2RT070.550.75 1.11.5 1.51.52.2 2.23 2.5…478GV2RT081.12.22.23344…6.3138GV2RT101.52.234445.5 5.57.56…10200GV2RT142.23 5.55.57.57.59119…14280GV2RT1647.57.5991513…18400GV2RT205.5911111118.517…23400GV2RT21(1) The thermal trip setting must be within the range marked on the graduated knob.GV2 RTD F 526142.t i fC i r c u i t b r e a k e r sblack handle, blue legend plate(1) The thermal trip setting must be within the range marked on the graduated knob.(2) Other accessories such as mounting, cabling and marking accessories are identical to those used for GV2 ME motor circuit breakers, see page B6/13.GV2 RTD F 526142.t i fD F 526340.e p sC i r c u i t b r e a k e r sTeSys GVDescription Mounting Maximum number Type of contacts Sold inlots of Unitreference Instantaneous auxiliary contactsFront (1)1N/O or N/C (2)10GVAE1N/O + N/C 10GVAE11N/O + N/O10GVAE20Side (LH)2N/O + N/C1GVAN11N/O + N/O1GVAN20Fault signalling contact + instantaneous auxiliary contact Side (3) (LH)1N/O (fault)+ N/O1GVAD1010+ N/C1GVAD1001N/C (fault)+ N/O1GVAD0110+ N/C1GVAD0101Short-circuit signalling contactSide (LH)1C/O common point1GVAM11(1 block on RH sideof circuit breaker GV2 ME)50 Hz GVAX11560 Hz GVAX116127 V60 Hz GVAX115220…240 V 50 Hz GVAX22560 Hz GVAX226380…400 V50 Hz GVAX38560 Hz GVAX386415…440 V 50 Hz GVAX415440 V60 Hz GVAX385Add-on contact blocksDescriptionMountingMaximum number Reference Visible isolation block (5)Front (1)1GV2AK00 (6)LimitersAt top(GV2 ME and GV2 P)1GV1L3Independent1LA9LB920(1) Mounting of a GV AE contact block or a GV2 AK00 visible isolation block on GV2 P and GV2 L .(2) Choice of N/C or N/O contact operation, depending on which way round the reversible block is mounted.(3) The GV AD is always mounted next to the circuit breaker.(4) To order an undervoltage trip: replace the dot (p ) in the reference with a U , example: GV AU025. To order a shunt trip: replace the dot (p ) in the reference with an S , example: GV AS025.(5) Visible isolation of the 3 poles upstream of circuit breaker GV2 P and GV2 L .Visible isolation block GV2 AK00 cannot be used with motor circuit breakers GV2 P32 and GV2 L32 (Ith max = 25 A).(6) Ie Max = 32 A.ReferencesTeSys protection componentsThermal-magnetic and magnetic motor circuit breakers GV2 with screw clamp connectionsAdd-on blocks and accessoriesCharacteristics:pages B6/89 and B6/94Dimensions, schemes:pages B6/70 to B6/82LA9LB920D B 126629.e p sC i r c u i t b r e a k e r sTeSys GVTerminal blockfor supply to one or more GV2 G busbar setsConnection from the top1GV1G09Can be fitted with current limiter GV1 L3 (GV2 ME and GV2 P)1GV2G05Cover for terminal block For mounting in modular panels10LA9E07Flexible 3-pole connection for connecting a GV2 to a contactor LC1-D09…D25 Centre distance between mounting rails: 100…120 mm10GV1G02Set of connections upstream/downstream For connecting GV2 ME to a printed circuit board 10GV2GA01“Large Spacing” adapter UL 508 type EFor GV2 P pp H7 (except 32 A)1GV2GH7Clip-in marker holders (supplied with each circuit breaker)For GV2 P , GV2 L, GV2 LE and GV2 RT (8 x 22 mm)100LA9D92ReferencesTeSys protection componentsThermal-magnetic and magnetic motor circuit breakers GV2 with screw clamp connectionsAccessoriesDimensions, schemes:pages B6/70 to B6/82D B 417942.e p sTeSys GVD B 126631.e p sD B 126630.e p sD B 126632.e p s7P B 106297_45.e p sExtended Rotary HandleAllows a circuit breaker or a starter-controller installed in back of an enclosure to be operated from the front of the enclosure.A rotary handle can be black or red/yellow, IP54 or IP65. It includes a function for locking the circuit breaker or the starter in the O (Off) or I (On) position(depending of the type of rotary handle) by means of up to 3 padlocks with a shank diameter of 4 to 8 mm. The extended shaft must be adjusted to use in different size enclosures. The IP54 rotary handle is fixed with a nut (Ø22) to make easierthe assembling. The new Laser Square tool brings the accuracy to align the circuit breaker and the rotary handle.device(padlocks not included)ReferencesTeSys protection componentsThermal-magnetic and magnetic motor circuit breakers GV2 with screw clamp connectionsC i r c u i t b r e a k e r sTeSys GVDescriptionMounting Maximum number Type of contacts Sold inlots of Unitreference Instantaneous auxiliary contactsFront1N/O or N/C (1)10GVAE1N/O + N/C 10GVAE11 (2)N/O + N/O10GVAE20 (2)Side (LH)2N/O + N/C1GVAN11 (2)N/O + N/O1GVAN20 (2)Fault signalling contact + instantaneous auxiliary contactFront 1N/O (fault)+ N/O1GVAED101 (2)N/O (fault)+ N/C1GVAED011 (2)Side (3) (LH)1N/O (fault)+ N/O1GVAD1010+ N/C1GVAD1001N/C (fault)+ N/O1GVAD0110+ N/C1GVAD0101Short-circuit signalling contact Side (LH)1C/O common point 1GVAM11(4)MountingVoltage ReferenceSide(1 block on RH side of circuit breaker)24 V 50 Hz GVA p 02560 Hz GVA p 02648 V 50 Hz GVA p 05560 Hz GVA p 05610050 Hz GVA p 107100…110 V 60 Hz GVA p 107110…115 V 50 Hz GVA p 11560 Hz GVA p 116120…127 V 50 Hz GVA p 125127 V 60 Hz GVA p 115200 V50 Hz GVA p 207200…220 V 60 Hz GVA p 207220…240 V 50 Hz GVA p 22560 Hz GVA p 226380…400 V 50 Hz GVA p 38560 Hz GVA p 386415…440 V 50 Hz GVA p 415415 V 60 Hz GVA p 416440 V 60 Hz GVA p 385480 V 60 Hz GVA p 415500 V 50 Hz GVA p 505600 V60 HzGVA p 505AccessoriesDescription Reference Sets of 3-pole 115 A busbars Pitch: 64 mm2 tap-off GV3 P pp and GV3 L pp GV3G2643 tap-off GV3 P pp and GV3 L pp GV3G364Cover “Large Spacing” UL 508 type E (Only one cover required on supply side)GV3 P ppGV3G66(1) Choice of N/C or N/O contact operation, depending on which way round the reversible block is mounted.(2) Contact blocks available in version with spring terminal connections. Add a figure 3 at the end of the references selected above. Example: GV AED101 becomes GV AED1013.(3) The GV AD pp is always mounted next to the circuit breaker.(4) To order an undervoltage trip: replace the dot (p ) in the reference with a U , example: GV AU025. To order a shunt trip: replace the dot (p ) in the reference with an S , example: GV AS025.Add-on blocks and accessoriesGV3 G66D F 537424.e p sTeSys GVD B 126637.e p sD B 126636.e p sD B 126632.e p s7P B 106297_45.e p sExtended Rotary HandleAllows a circuit breaker or a starter-controller installed in back of an enclosure to be operated from the front of the enclosure.A rotary handle can be black or red/yellow, IP54 or IP65. It includes a function for locking the circuit breaker or the starter in the O (Off) or I (On) position(depending of the type of rotary handle) by means of up to 3 padlocks with a shank diameter of 4 to 8 mm. The extended shaft must be adjusted to use in different size enclosures. The IP54 rotary handle is fixed with a nut (Ø22) to make easierthe assembling. The new Laser Square tool brings the accurency to align the circuit breaker and the rotary handle.For English 10-GVAPSEN For German 10-GVAPSDE For Spanish10-GVAPSES For Chinese 10-GVAPSCN For Portuguese 10-GVAPSPT For Russian 10-GVAPSRU For Italian10-GVAPSITD F 526342.e p sB6/21C i r c u i t b r e a k e r sTeSys GVfor locking the Start button (on open-mounted product)using up to 3 padlocks(padlocks to be ordered separately)External operator for mounting on enclosure door.Red Ø40 knob on yellow plate, padlockable in position O (with up to 3 padlocks). Door locked when knob in position I, and when knob padlocked in position O.GK3AP03(1) 1 voltage trip OR 1 fault signalling contact to be fitted inside the motor circuit breaker.Other versions24 to 690 V, 50 or 60 Hz voltage trips for circuit breakers GV3 ME80.Please consult your Regional Sales Office.ReferencesTeSys protection componentsMotor circuit breakers GV3 ME80 and GK3 EF80Add-on blocks and accessoriesCharacteristics:pages B6/89 and B6/92Dimensions:page B6/47B6/22D F 526344.e p sB6/23C i r c u i t b r e a k e r sTeSys GVThese allow remote indication of the circuit breaker contact states. They can be used for signalling, electrical locking, relaying, etc. They are available in two versions: standard and low level. They include a terminal block and the auxiliary circuits leave the circuit breaker through a hole provided for this purpose.They perform the following functions, depending on where they are located in the circuit breaker:Low levelGV7AB11Fault discrimination devicesThese make it possible to:b either differentiate a thermal fault from a magnetic fault,b or open the contactor only in the event of a thermal fault.VoltageReference a 24...48 and c 24…72 V GV7AD111 (1)z 110…240 VGV7AD112 (1)Electric tripsThese allow the circuit breaker to be tripped via an electrical control signal.b Undervoltage trip GV7 AUv Trips the circuit breaker when the control voltage drops below the tripping threshold, which is between 0.35 and 0.7 times the rated voltage.v Circuit breaker closing is only possible if the voltage exceeds 0.85 times the rated voltage. Circuit breaker tripping by a GV7 AU trip meets the requirements of IEC 60947-2.b Shunt trip GV7 ASTrips the circuit breaker when the control voltage rises above 0.7 times the rated voltage.b Operation (GV7 AU or GV7 AS)v When the circuit breaker has been tripped by a GV7 AU or AS, it must be reset either locally or by remote control. (For remote control, please consult your Regional Sales Office).v Tripping has priority over manual closing: if a tripping instruction is present, manual action does not result in closing, even temporarily, of the contacts.v Durability: 50 % of the mechanical durability of the circuit breaker.TypeVoltageReference Undervoltage trip48 V, 50/60 HzGV7AU055 (1)110…130 V, 50/60 Hz GV7AU107 (1)200…240 V, 50/60 Hz GV7AU207 (1)380…440 V, 50/60 Hz GV7AU387 (1)525 V, 50 HzGV7AU525 (1)Shunt trip48 V, 50/60 HzGV7AS055 (1)110…130 V, 50/60 Hz GV7AS107 (1)200…240 V, 50/60 Hz GV7AS207 (1)380…440 V, 50/60 Hz GV7AS387 (1)525 V, 50 HzGV7AS525 (1)(1) For mounting of a GV7 AD or a GV7 AU or AS.ReferencesTeSys protection componentsThermal-magnetic motor circuit breakers GV7 R with screw clamp connectionsAdd-on blocks and accessoriesCharacteristics:pages B6/51, B6/52 and B6/56Dimensions:pages B6/79 to B6/81Schemes:page B6/83B6/24B6/25C i r c u i t b r e a k e r sTeSys GVDescription ApplicationFor use on contactors Sold in lots of Unitreference Clip-on connectors for GV7 RUp to 150 A, 1.5…95 mm 2–3GV7AC021Up to 220 A, 1.5…185 mm 2–3GV7AC022Spreader 3-pole (1)To increase the pitch to 45 mm–1GV7AC03Terminal shields IP 405 (1)Supplied with sealing accessory–1GV7AC01Phase barriersSafety accessories used when fitting of shields is impossible –2GV7AC04Insulating screens Ensure insulation between the connections and the backplate –2GV7AC05Kits for combination with contactor (2)Allowing link between thecircuit breaker and the contactor. The cover provides protection against direct finger contactLC1 F115…F1851GV7AC06LC1 F225 and F2651GV7AC07LC1 D115 and D1501GV7AC08Replaces the circuit breaker front cover; secured by screws. It includes a device for locking the circuit breaker in the O (Off) position by means of up to 3 padlocks with a shank diameter of 5 to 8 mm (padlocks not included). A conversion accessory allows the direct rotary handle to be mounted on the enclosure door. In this case, the door cannot be opened if the circuit breaker is in the “ON” position. Circuit breaker closing is inhibited if the enclosure door is open.Description TypeDegree of protection Reference Direct rotary handleBlack handle, black legend plate IP 40GV7AP03Red handle, yellow legend plateIP 40GV7AP04Adapter plate (3)Four mounting direct rotary handle on enclosure doorIP 43GV7AP05Allows a circuit breaker installed in the back of an enclosure to be operated from the front of the enclosure. It comprises:b a unit which screws onto the front cover of the circuit breaker,b an assembly (handle and front plate) to be fitted on the enclosure door,b an extension shaft which must be adjusted (distance between the mounting surface and the door: 185 mm minimum, 600 mm maximum). It includes a device for locking the circuit breaker in the O (Off) position by means of up to 3 padlocks with a shank diameter of 5 to 8 mm (padlocks not included). This prevents the enclosure door from being opened.DescriptionTypeDegree of protection Reference Extended rotary handleBlack handle, black legend plate IP 55GV7AP01Red handle, yellow legend plateIP 55GV7AP02Allows circuit breakers not fitted with a rotary handle to be locked in the O (Off) position by means of up to 3 padlocks with a shank diameter of 5 to 8 mm (padlocks not included).Description ApplicationReference Locking deviceFor circuit breaker not fitted with a rotary handleGV7V01(1) Terminal shields cannot be used together with spreaders.(2) The kit comprises links, a protective shield and a depth adjustable metal bracket for the breaker.(3) This conversion accessory makes it impossible to open the door if the device is closed and prevents the device from being closed if the door is open.ReferencesTeSys protection componentsThermal-magnetic motor circuit breakers GV7 R with screw clamp connectionsAccessoriesGV7 AC07D F 537429.e p sGV7 AC08D F 537428.e p sDimensions:pages B6/79 to B6/81B6/260.5 6.63GB2DB051143GB2DB062263GB2DB073403GB2DB084503GB2DB095663GB2DB106833GB2DB1281083GB2DB14101383GB2DB16121653GB2DB20162203GB2DB21202703GB2DB22(1) Conforming to IEC 60947-1.GB2 CBppD F 526243.t i fGB2 CD ppD F 526244.t i fGB2 DBppD F 526245.t i fPresentation, selection :page B6/84Characteristics :pages B6/85 to B6/87Dimensions :page B6/88Schemes :page B6/88B6/27C i r c u i t b r e a k e r s(1) Conforming to IEC 60947-1.Accessories for circuit breakers GB2-CB, DB and CSDescriptionSold in lots of Unitreference Busbar set for supply to 10 GB2 DB or20 GB2 CB or GB2 CS with 2 connectors1GB2G210Supply connector 10GB2G01GB2 CS ppD F 526246.t i fPresentation, selection :page B6/84Characteristics :pages B6/85 to B6/87Dimensions :page B6/88Schemes :page B6/88B6/28B6/29B6/30TeSys GVCharacteristicsTeSys protection componentsMagnetic motor circuit breakers GV2 LE and GV2 LReferences:pages B6/2 and B6/3Dimensions:pages B6/43 to B6/47Schemes:page B6/48add-on contact blocks. Side by side mounting is possible up to 40 °C.(2) When mounting on a vertical rail, fit a stop to prevent any slippage.(1) As % of Icu.Average operating times at 20 °C related to multiples of the setting currentD F 534092.e p s1 3 poles from cold state2 2 poles from cold state3 3 poles from hot stateDynamic stressI peak = f (prospective Isc) at 1.05 Ue = 435 VD F 534093.e p s1 Maximum peak current2 32 A3 25 A4 18 A5 14 A6 10 A7 6.3 A8 4 A9 2.5 A 10 1.6 A11 Limit of rated ultimate breaking capacity on short-circuit of GV2 LE (14, 18, 23 and 25 A ratings).Dynamic stressI peak = f (prospective Isc) at 1.05 Ue = 435 VD F 534094.e p s1 Maximum peak current2 32 A3 25 A4 18 A5 14 A6 10 A7 6.3 A8 4 A9 2.5 A 10 1.6 A11 Limit of rated ultimate breaking capacity on short-circuit of GV2 LE (14, 18, 23 and 25 A ratings).Thermal limit in kA 2s in the magnetic operating zone Sum of I 2dt = f (prospective Isc) at 1.05 Ue = 435 V22Prospective Isc (kA)D F 534095.e p s1 32 A 2 25 A3 18 A4 14 A5 10 A6 6.3 A7 4 A8 2.5 A9 1.6 AThermal limit in kA 2s in the magnetic operating zone Sum of I 2dt = f (prospective Isc) at 1.05 Ue = 435 V22D F 534096.e p s1 25 A and 32 A 2 18 A3 14 A 4 10 A5 6.3 A6 4 A7 2.5 A8 1.6 AThermal limit in kA 2s in the magnetic operating zone Sum of I 2dt = f (prospective Isc) at 1.05 Ue = 435 V22D F 534097.e p s1 32 A (GV2 LE32)2 25 A and 32 A (GV2 L32)3 18 A4 14 A5 10 A6 6.3 A7 4 A8 2.5 A9 1.6 A10 Limit of rated ultimate breaking capacity on short-circuit of GV2 LE (14, 18, 23 and 25 A ratings).Average operating time at 20 °C without prior current flowx the setting current (Ir)D F 534098.e p s1 3 poles from cold state2 2 poles from cold state3 3 poles from hot stateA Thermal overload relay protection zoneB GV3 L protection zoneDynamic stressI peak = f (prospective Isc) at 1.05 Ue = 435 VProspective Isc (kA)D B 418280.e p s1 Maximum peak current2 GV3 L653 GV3 L504 GV3 L405 GV3 L326 GV3 L25Thermal limit in A 2sSum of I 2dt = f (prospective Isc) at 1.05 Ue = 435 V2Prospective Isc (kA)D B 418279.e p s1 GV3 L652 GV3 L503 GV3 L404 GV3 L325 GV3 L25TeSys GVDimensions, mountingD F 537440.e p sD F 537441.e p sD F 537444.e p sTeSys protection componentsMagnetic motor circuit breakers GV2 L and GV2 LETeSys GVDimensions, mounting TeSys protection componentsMagnetic motor circuit breakers GV2 L and GV2 LED B 127415.e p sD B 127414.e p sa b Mini Maxi Mini Maxi GV2 APN pp140250GV2 APN pp + GV APH02151250GV2 APN pp + GV APK11250434--GV2 APN pp + GV APH02 + GV APK11--250445TeSys GVDimensions,mounting Sets of busbars GV2 G445, GV2 G454, GV2 G472, with terminal block GV2 G05D F 537451.e p sGV2 G445224269314359GV2 G454260314368422GV2 G472332404476548D F 537452.e p sD F 537454.e p sGV2 G345 (3 x 45 mm)134GV2 G354 (3 x 54 mm)152TeSys protection componentsMagnetic motor circuit breakers GV2 L and GV2 LED F 537480.e psD F 537435.e p sD F 510637.e p sD F 510638.e p sD B 127416.e p sD B 127417.e p sa b Mini Maxi Mini Maxi GV3 APN pp189300--GV3 APN pp + GV APK12300481GV3 APN pp + GV APH03--200300GV3 APN pp + GV APH03 + GV APK12--300492TeSys GVSchemesTeSys protection componentsMagnetic motor circuit breakers GV2 L, GV2 LE, GV3 LD F 537474.e p sD F 537475.e p sD F 537476.e p sGV2 ME, GV2 P , GV3 ME, GV3 P and GV7 R motor circuit breakers are 3-pole thermal-magnetic circuit breakers specifically designed for the control and protection of motors , conforming to standards IEC 60947-2 and IEC 60947-4-1.Connection GV2GV2 ME and GV2 P circuit breakers are designed for connection by screw clamp terminals.Circuit breaker GV2 ME can be supplied with lugs or spring terminal connections.Spring terminal connections ensure secure, permanent and durable clamping that is resistant to harsh environments, vibration and impact and are even more effective when conductors without cable ends are used. Each connection can take two independent conductors.GV3GV3 circuit breakers feature connection by BTR screws (hexagon socket head), tightened using a n° 4 Allen key.This type of connection uses the Ever Link ® system with creep compensation (1) (Schneider Electric patent).This technique makes it possible to achieve accurate and durable tightening torque, in order to avoid cable creep.GV3 circuit breakers are also available with connection by lugs. This type of connection meets the requirements of certain Asian markets and is suitable for applications subject to strong vibration, such as railway transport.GV7GV7 circuit breakers: with connection by screw clamp terminals (for bars and lugs) and by clip-on connectors.OperationControl is manual and local when the motor circuit breaker is used on its own.Control is automatic and remote when it is associated with a contactor.GV2 ME and GV3 ME80Pushbutton control.Energisation is controlled manually by operating the Start button “I” 1.De-energisation is controlled manually by operating the Stop button “O” 2, or automatically by the thermal-magnetic protection elements or by a voltage trip attachment.GV2 P , GV3 P and GV7 Rb Control by rotary knob: for GV2 P and GV3 P b Control by rocker lever: for GV7 R.Energisation is controlled manually by moving the knob or rocker lever to position “I” 1.De-energisation is controlled manually by moving the knob or rocker lever to position “O” 2.De-energisation due to a fault automatically places the knob or rocker lever in the “Trip” position 3.Re-energisation is possible only after having returned the knob or rocker lever to position “O”.(1) Creep: normal crushing phenomenon of copper conductors, that is accentuated over time.GV2 MEwith screw clamp terminals124D F 526134.t i fGV2 MEwith spring terminals connections124D F 526135.t i fGV3 P1324D F 526136.t ifGV2 P1342D F 526137.t i fGV7 R132D F 526138.t i f。
SPR-54中文资料
The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
常用纽扣电池型号对照表
常用纽扣电池型号对照表常用纽扣电池型号对照表香港国际瑞士日本其他电压直径Ф*厚度（mm）用途AG0 LR69 379 SR521 1.5V 5.8*2.1AG1 LR621 364 SR621 164 1.5V 6.8*2.1AG2 LR726 396 SR726 196 1.5V 7.9*2.6AG3 LR41 392 SR41 192 1.5V 7.9*3.6 迷你手电、体温计AG4 LR626 377 SR626 177 1.5V 6.8*2.6AG5 LR754 393 SR754 193 1.5V 7.9*5.4AG6 LR920 371 SR927 171 1.5V 9.5*2.1AG7 LR927 395 SR927 195 1.5V 9.5*2.6AG8 LR55 391 SR1120 191 1.5V 11.6*2.1AG9 LR936 394 SR936 194 1.5V 9.5*3.6AG10 LR54 389 SR1130 189 1.5V 11.6*3.1 计算器AG11 LR721 362 SR721 162 1.5V 7.9*2.1AG12 LR43 386 SR1142 186 1.5V 11.6*4.2 计算器、计步器AG13 LR44 357 SR1154 A76 1.5V 11.6*5.4 手表、计算机CR2032 3V 20*3.2 体重秤、主板CR2025 3V 20*2.6 电子词典CR2016 3V 20*1.6 手表，计算机、电子记事簿CR2032是指一种20mm直径，3.2mm高。
型号命名与标识IEC型号美国型号日本型号中国传统叫法直径(mm) 高度(mm)普通锌锰电池R03 AAA UM-4 7号电池10.5 44.5 R6P AA UM-3 5号电池14.5 50.5 R14 C UM-2 2号电池26.2 50.0 R20 D UM-1 1号电池34.2 61.5碱性锌锰电池LR03 AAA AM-4 7号碱性电池10.5 44.5 LR6 AA AM-3 5号碱性电池14.5 50.5 LR14 C AM-2 2号碱性电池26.2 50.0 LR20 D AM-1 1号碱性电池34.2 61.5IEC标准中，R代表圆柱形，L代表碱性，数字代表电池的大小，数字后面的P代表高功率，这里有一个特殊规定，在表示五号普通锌锰电池时，要标识为R6P，而不是R06或者R6。
富士通SPARC企业T5440服务器说明书
DATASHEETFUJITSU SPARC ENTERPRISE T5440 SERVERTHE SYSTEM THAT MOVES WEB APPLICATION CONSOLIDATION INTO MID-RANGE COMPUTING. UP TO 4 HIGH PERFORMANCE PROCESSORS, HIGH MEMORY AND EXTENSIVE CONNECTIVITY PROVIDE THE INFRASTRUCTURE FOR BACK OFFICE AND DATA CENTER CONSOLIDATION TASKS.FUJITSU SPARC ENTERPRISE FOR WEB SECURITY, EFFICIENCY AND PERFORMANCEFujitsu SPARC Enterprise throughput computing servers are the ultimate in Web and front-end business processes. Designed for space efficiency, low power consumption, and maximum compute performance they provide high throughput, energy-saving, and space-saving solutions, in Web server deployment. Built on UltraSPARC T2 or UltraSPARC T2 Plus processors, everything is integrated together on each processor chip to reduce the overall component count. This speeds performance lowers power use and reduces component failure. Add in the no-cost virtualization technology from Logical Domains and Solaris Containers and you have a fully scalable environment for server consolidation. Finish it off with on-chip encryption and 10 Giga-bit Ethernet freeways and they provide the compete environment for secure data processing and lightening fast throughput. SPARC ENVIRONMENTS MEAN MANAGEABILITY AND RELIABILITYBased on a four socket design, Fujitsu SPARC Enterprise T5440 provides up to 256 threads and 512GB of memory for outstanding workload consolidation. These servers can deliver outstanding data throughput performance in web and network environments while also delivering excellent server consolidation capability for back office and departmental database solutions. Fully supported by solid management and the top scalability and openness of the Solaris Operating system, you have the ability to maximise thread utilization, deliver application capability, and scale as large as you need.The intrinsic service management in Fujitsu SPARC Enterprise T5440 combined with the SPARC hardware architecture and Solaris operating system enables predictive self-healing and simpler implementation and operation. In addition, with fewer components and a low-power, low-heat design, the overall incidence of server stress and component failure is well below equivalent systems. This further increases operational reliability and reduces the need for manual intervention. As a result Fujitsu SPARC Enterprise T5440 is both a cost effective and well engineered system that you can rely on to deliver responsive Web and application performance.FEATURES AND BENEFITS FLEXIBLE INVESTMENT PROTECTION⏹16 or 32 core systems with UltraSPARC T2 Plus processors⏹Many growth options by use of Logical Domains, Solaris Containers, processor addition and space-saving server node addition⏹High multi-processor performance and memory capacity ⏹Let’s you select the performance you need, in a cost effective way, by choosing up to 256 threads⏹Able to grow the underlying hardware platforms while maximizing the use of all available resources; for best return on investment⏹Ability to handle server consolidation and web transaction processing to provide mid-range capability for departmental and back office functions as part of a consolidated web architectureRELIABLE OPERATION⏹A broad range of RAS functions including cache protection using ECC for Coherency Links, thread and core offlining memory page retirement, register protection, cache scrubbing⏹Overall system management and service security from hot swap and redundant disk drives (software RAID), power supplies, and Fans, system environment monitoring and easy component replacement ⏹Minimizes the possibility of server failure and ensures application continuity by removing, correcting or isolating in-processor faults⏹Lower management and maintenance costs coupled with non-stop system operationWORLD’S MOST ADVANCE D OS, SOLARIS 10⏹Solaris 10 is pre-installed⏹Supports Dynamic Tracing (DTrace) Solaris Zettabyte File System (ZFS), plus use and process rights management⏹The choice of the world’s most advanced developers ⏹Easy installation and upgrades with Solaris binary compatibility means software investment protection⏹The outstanding diagnostics and secure data handling makes high throughput operations simpler and more secure⏹Able to access the widest range of business applications availableFLEXIBLE INVESTMENT PROTECTIONThe choice of up to four processors (256 threads) and high main memory delivers the performance and capacity to support larger application processes as well as allowing more flexible and extensive use of Solaris Containers and Logical Domains. High reliability coupled with low operating costs also delivers unrivalled investment protection. Not only will your Fujitsu SPARC Enterprise T5440 servers have a longer and more useful life but they will also reduce your overall IT spends.Advanced high thread processor technology continues to provide additional performance at lower than average power consumption. When used to the maximum in high throughput computing environments you will achieve outstanding return on investment. Low than average power consumption also means savings in cooling costs particularly in high-density rack use in the data center.Your administration costs will also reduce as the number of applications consolidated into a single SPRAC Enterprise T5440 will significantly reduce your server count.To ensure that all available performance can be fully used, Logical Domains and Solaris Containers let you quickly and dynamically reconfigure the system to support both existing and new processes concurrently. Fully compatible with all Solaris applications Fujitsu SPARC Enterprise T5440 inter-works will all other Solaris and SPARC Enterprise systems to let you add performance or back-end processes as your requirements increase. RELIABLE OPERATIONThe hot swap and component redundancy in all Fujitsu SPARC Enterprise throughput computing servers, coupled with the high RAS functions embodied in UltraSPARC T2 Plus processors, provide Web platform reliability second to none. The result is a stable self sustaining system that works well with all the applications it supports. Error checking and correction systems implemented directly in the hardware not only take the pressure off the OS and applications but also ensure the platform really manages itself. This means less systems administration and many fewer diagnostic and recovery tasks are required. Once you own a Fujitsu SPARC Enterprise system you will soon forget the operational problems of the past.WORLD’S MOST ADVANCE D OS, SOLARIS 10Every Fujitsu SPARC Enterprise comes pre-installed with the latest Solaris operating system. This ensures the best in binary compatibility with the world’s most important application systems. It’s just one more important factor in ensuring the maximum life of your IT investments. But equally importantly, Solaris is the only OS that has the scalability, security, and diagnostic features to fully and quickly respond if a major application problem occurs. That has directly led to Solaris having one of the world’s largest applicatio n portfolios and why it is the development platform of choice for many of the world’s major software developers.TECHNICAL DETAILSPROCESSORProcessor quantity and type 4 x UltraSPARC T2 PlusProcessor options 2 x UltraSPARC T2 Plus eight-core processor (1.4GHz, 24KB L1 cache on core, 4MB L2cache per chip)4 x UltraSPARC T2 Plus eight-core processor (1.4GHz, 24KB L1 cache on core, 4MB L2cache per chip)4 x UltraSPARC T2 Plus eight-core processor (1.6GHz, 24KB L1 cache on core, 4MB L2cache per chip)MEMORYMemory slots 64 slotsMemory slot type FB-DIMMMemory capacity (min. – max.) 32GB–512GBMemory protection ECCMemory modules 8GB Memory Expansion (4 x 2GB DIMM)16GB Memory Expansion (4 x 4GB DIMM)32GB Memory Expansion (4 x 8GB DIMM)DRIVE BAYSDisk bay configuration 4 x 2.5-inch hot-plug SAS/SATADisk drives HDD SAS, 146GB, 10,000rpm, 2.5-inchHDD SAS, 300GB, 10,000rpm, 2.5-inchSSD SAS, 32GB, 2.5-inchOptical drive bay configuration 1 x 128mm bayOptical drives CD-RW, DVD+/-RW (8xDVD+/-R, 8xDVD+/-RW, 24CD-R, 24xCD-RW)INTERFACESLAN/Ethernet 4 ports (Gbit/s, RJ45)Serial 1 port (RS232C, DSUB9)USB 4 ports (2 on front, 2 on rear)Service LAN for ILOM 1 port (10/100Mbit/s, RJ45)Service serial for ILOM 1 port (RS232C, RJ45)SLOTSPCI Express 8 x PCI Express (Usable for 8 lanes , half-height, short)Note XAUI cards can be installed in pre-determined two PCI Express slotsNote Expandable to 28 slots (PCI Express) when using 2 x External I/O Expansion UnitsCONNECTABLE COMPONENTSSCSI/SAS controller Dual-Channel Ultra320 SCSI Card, PCI ExpressSingle-Channel SAS Card, PCI ExpressFibre channel controller Single-Channel 4 Gbps Fibre Channel Card, PCI ExpressDual-Channel 4 Gbps Fibre Channel Card, PCI ExpressSingle-Channel 8 Gbps Fibre Channel Card, PCI ExpressDual-Channel 8 Gbps Fibre Channel Card, PCI ExpressLAN controller Quad Giga Ethernet Card (10/100/1000Base-T), PCI ExpressDual Gigabit Ethernet Card (10/100/1000Base-T), PCI ExpressDual Gigabit Ethernet Card (1000Base-SX), PCI ExpressSingle 10 Gigabit Ethernet Card, (10Gbase-SR), PCI ExpressSingle 10 Gigabit Ethernet Card, (XAUI: 10Gbase-SR/LR)Rack infrastructure Cable Management ArmRack rail kitSUPPORTED OPERATING SYSTEMSSupported operating systems Solaris 10 8/07 or laterOperating system release link /sparcenterprise/manual/notes/SERVER MANAGEMENTService processor Integrated Lights Out Manager (ILOM)Supported software Enhanced Support FacilityServer System ManagerVIRTUALISATIONVirtualization features Logical DomainsSolaris ContainersRAS FEATURESProcessor RAS ECC protection for L2 cache and registers, Thread and core offlining Redundant components Disk drive (HDD and SSD) redundant by software RAIDFanPCI card (multi-path configuration)Power supply unit,Power systemHot-swap components Disk drive (HDD and SSD) hot-replaceable by software RAIDFanPower supply unit,Degradation features Dynamic degradation Processor (core)MemoryHDD and SSD dynamic-degraded by software RAIDStatic degradation Processor (core)MemoryHDD and SSD static-degraded by softwareDIMENSIONS / WEIGHTRack-mount (W x D x H) 445 x 633 x 176 mm; 4U17.5 x 24.9 x 6.9 inchesWeight 40 kg (88 lb.)ENVIRONMENTSound pressure (LpAm) 80 dB (A)Operating ambient temperature 5–35°C (depending on altitude)Operating relative humidity 10–90%Operating altitude 0–3,000 mELECTRICAL VALUES AC POWERRated voltage range AC 100–240V +/- 10%Rated frequency range 50/60 HzActive power max. 2,700WApparent power max. 2,843VAHeat emission 9,720 kJ/hCOMPLIANCEEurope CERoHSRussia GOST-RUSA/Canada FCCICES-003UL/cULUL/S-markJapan VCCIChina Chinese RoHSKorea MICTaiwan BSMIAustralia C-tickCompliance notes There is general compliance with the safety requirements of major countries. Nationalapprovals required in order to satisfy statutory regulations or for other reasons can beapplied for on request.WARRANTY AND SUPPORT SERVICESService link /supportIn addition to Fujitsu SPARC Enterprise T5440, Fujitsu provides a range of platform solutions. They combine reliable Fujitsu products with the best in services, know-how and worldwide partnerships.Dynamic InfrastructuresWith the Fujitsu Dynamic Infrastructures approach, Fujitsu offers a full portfolio of IT products,solutions and services, ranging from clients to datacenter solutions, Managed Infrastructure and Infrastructure-as-a-Service. How much you benefit from Fujitsu technologies and services depends on the level of cooperation you choose. This takes IT flexibility and efficiency to the next level.Computing Products/global/services/computing/ - PRIMERGY: Industrial standard server - SPARC Enterprise: UNIX server- PRIMEQUEST: Mission-critical IA server - ETERNUS: Storage system - BS2000/OSD: Mainframe - GS21: Mainframe - ESPRIMO: Desktop PC - LIFEBOOK: Notebook PC - CELSIUS: WorkstationSoftware/software/- Interstage: Application infrastructure software - Systemwalker: System management software - Symfoware: Database software - PRIMECLUSTER: Clustering software - GLOVIA: ERP solutionLearn more about Fujitsu SPARC Enterprise T5440, please contact your Fujitsu salesrepresentative, Fujitsu business partner, or visit our website./sparcenterprise/Fujitsu Green Policy Innovation is our worldwide project for reducing burdens on the environment. Using our global know-how, we aim to resolve issues of environmental energy efficiency through IT. Please find further information at:/global/about/environment/©Copyright 2010 Fujitsu Limited.Fujitsu, the Fujitsu logo, PRIMERGY, PRIMEQUEST, ETERNUS, BS2000/OSD, GS21, ESPRIMO, LIFEBOOK, CELSIUS, Interstage, Systemwalker, Symfoware, PRIMECLUSTER are trademarks or registered trademarks of Fujitsu Limited in Japan and other countries.GLOVIA is a trademark of GLOVIA International LLC in the United States and other countries. UNIX is a registered trademark of The Open Group in the United States and other countries. All SPARC trademarks are trademarks orregistered trademarks of SPARC International, Inc. in the United States and other countries. Oracle and Java are registered trademarks of Oracle and/or its affiliates.Other company, product and service names may be trademarks or registered trademarks of their respective owners.DISCLAIMERTechnical data subject to modification and delivery subject to availability. Any liability that the data and illustrations are complete, actual or correct is excluded. Designations may be trademarks and/or copyrights of the respective manufacturer, the use of which by third parties for their own purposes may infringe the rights of such owner.CONTACTFUJITSU LIMITEDWebsite: 2010-09-14 WW-EN。
Digi LR54硬件参考指南说明书
Digi LR54*****************Include the document title and part number(Digi LR54Hardware Reference,90002271A)in the subject line of your email.Digi LR54/LR54W Digi LR54/LR54W key features Digi LR54/LR54W key featuresThe Digi LR54is an LTE-Advanced(LTE-A)router.Key features include:n High-speed CAT6LTEn Dual SIM cellular interfaces,providing redundancyn Powerful802.11ac Wi-Fin4-port Gigabit Ethernet with LAN and WAN supportn Automated Wide-Area Network(WAN)failover/failbackn Extended operating temperaturen Local command-line and web interfacesn Superior network performance management through Digi Remote Manager(DRM)n Global deployment supportDigi LR54/LR54W Digi LR54front and back views Digi LR54front and back viewsThe following figures show front and back views of the Digi LR54.1.Enclosure2.Power3.Ethernet connectors4.SIM card slots5.Cellular antennas6.Wi-Fi antennas(Wi-Fi models only)7.Serial port connector(Digi LR54/LR54W serial connector pinout)8.LEDs(See Digi LR54LEDs9.Reset button(Reset the device to factory defaults)10.Internal temperature sensorDigi LR54Mounting optionsThe Digi LR54Wall-Mount Kit(part number78000001)is available separately for wall-mounting.Itcontains two mounting brackets and four screws.You will need to supply additional self-tappingscrews and sleeve anchors as needed.Attach mounting brackets to the device1.Remove the four rubber feet from the bottom of the Digi LR54.ing the four supplied M3x6mm screws,attach the mounting brackets.Mount the Digi LR54on a wall1.Align the Digi LR54on wall.2.Tighten self-tapping screws to wall through holes of mounting brackets.If mounting the deviceon a concrete wall,use sleeve anchors.Hang the Digi LR54on a wallTighten two self-tapping screws to wall,but leave a small part of screw protruding from the wall.To hang the Digi LR54on the wall,center the holes of the mounting brackets on the two wall-mounted screws.Digi LR54/LR54W Digi LR54/LR54W serial connector pinoutDigiDigi LR54/LR54W Digi LR54LEDs Digi LR54LEDsThe Digi LR54has LEDs on the top front panel.The number of LEDs varies by model.During bootup, the front-panel LEDs light up in sequence to indicate boot progress.For example,here are the LEDs for a Digi LR54(Wi-Fi model):There are also several LEDs on the rear WAN/LAN connectors that indicate network link and activity.Powern Off:No power.n Blue:Unit has power.WWAN SignalIndicates strength of cellular signal.n Off:No service.n Yellow:Poor/Fair signal.n Green:Good/Excellent signal.WWAN ServiceIndicates the presence and level of cellular service running on the device.n Off:No service.n Blinking Green:2G/3G/4G connection is coming up.n Solid Yellow:2G or3G connection is up.n Solid Green:4G connection is up.SIM 1Indicates use of the SIM card installed in SIM slot1.n Off:SIM1is not being used.n Solid green:SIM1is being used or is coming up.SIM2Indicates use of the SIM card installed in SIM slot2.Digi LR54/LR54W Tips for improving cellular signal strengthTipsDigi LR54/LR54W Reset the device to factory defaultsTo reset the device to factory defaults:1.Locate the reset button on your device.For the Digi LR54,the Reset button is located beneaththe SIM card slot cover on the front panel,to the right of SIM slot2.Remove the SIM cover toaccess the Reset button.2.Press and hold the Reset button for5seconds.The device reboots automatically.The device reset to factory defaults.Follow the instructions in the Digi LR54Quick Start Guideto reconfigure the device.Digi LR54regulatory and safety statements Reset the device to factory defaultsDigi LR54regulatory and safety statements RF exposure statement RF exposure statementIn order to comply with RF exposure limits established in the ANSI C95.1standards,the distancebetween the antenna or antennas and the user should not be less than20cm.Federal Communication(FCC)Part15Class BRadio Frequency Interference(RFI)(FCC15.105)The Digi LR54has been tested and found to comply with the limits for a Class B digital device,pursuant to Part15of the FCC Rules.These limits are designed to provide reasonable protectionagainst harmful interference in a residential installation.This equipment generates,uses,and canradiate radio frequency energy and,if not installed and used in accordance with the instructions,may cause harmful interference to radio communications.However,there is no guarantee thatinterference will not occur in a particular installation.If this equipment does cause harmfulinterference to radio or television reception,which can be determined by turning the equipment off and on,the user is encouraged to correct the interference by one or more of the following measures: n Reorient or relocate the receiving antenna.n Increase the separation between the equipment and the receiver.n Connect the equipment into an outlet that is on a circuit different from the receiver.n Consult the dealer or an experienced radio/TV technician for help.Labeling Requirements(FCC15.19)The Digi LR54complies with Part15of FCC rules.Operation is subject to the following two conditions:(1)this device may not cause harmful interference,and(2)this device must accept any interferencereceived,including interference that may cause undesired operation.If the FCC ID is not visible when installed inside another device,then the outside of the device intowhich the module is installed must also display a label referring to the enclosed module FCC ID.Modifications(FCC15.21)Changes or modifications to this equipment not expressly approved by Digi may void the user’sauthority to operate this equipment.European Community-CE Mark Declaration of Conformity(DoC) Digi has issued Declarations of Conformity for the Digi LR54concerning emissions,EMC,and safety.For more information,see /resources/certifications.Important noteDigi customers assume full responsibility for learning and meeting the required guidelines for eachcountry in their distribution market.Refer to the radio regulatory agency in the desired countries ofoperation for more information.CE mark(Europe)The Digi LR54is certified for use in several European countries.For information,visit/resources/certifications.If the Digi LR54is incorporated into a product,the manufacturer must ensure compliance of the final product with articles3.1a and3.1b of the RE Directive(Radio Equipment Directive).A Declaration of Conformity must be issued for each of these standards and kept on file as described in the REDigi LR54regulatory and safety statements Maximum transmit power for radio frequenciesDigi LR54regulatory and safety statements Innovation,Science,and Economic Development Canada(IC)certificationsTo avoid contact with electrical current:n Never install electrical wiring during an electrical storm.n Never install an Ethernet connection in wet locations unless that connector is specifically designed for wet locations.n Use caution when installing or modifying lines.n Use a screwdriver and other tools with insulated handles.n Wear safety glasses or goggles.n Do not place Ethernet wiring or connections in any conduit,outlet or junction box containing electrical wiring.n Installation of inside wire may bring you close to electrical wire,conduit,terminals and other electrical facilities.Extreme caution must be used to avoid electricalshock from such facilities.Avoid contact with all such facilities.n Ethernet wiring must be at least6feet from bare power wiring or lightning rods and associated wires,and at least6inches from other wire(antenna wires,doorbellwires,wires from transformers to neon signs),steam or hot water pipes,and heating ducts.n Do not place an Ethernet connection where it would allow a person to use an Ethernet device while in a bathtub,shower,swimming pool,or similar hazardouslocation.n Protectors and grounding wire placed by the service provider must not be connected to,removed,or modified by the customer.n Do not touch uninsulated Ethernet wiring if lightning is likely!n External Wiring:Any external communications wiring installed needs to be constructed to all relevant electrical codes.In the United States this is the National Electrical Code Article800.Contact a licensed electrician for details.Observe all warning notices regarding use of wireless devices.Potentially Hazardous AtmospheresObserve restrictions on the use of radio devices in fuel depots,chemical plants,etc.and areas where the air contains chemicals or particles,such as grain,dust,or metal powders,and any other area where you would normally be advised to turn off your vehicle engine.Safety in AircraftSwitch off the wireless device when instructed to do so by airport or airline staff.If the device offers a ‘flight mode’or similar feature,consult airline staff about its use in flight.Safety in HospitalsWireless devices transmit radio frequency energy and may affect medical electrical equipment.Switch off wireless devices wherever requested to do so in hospitals,clinics,or health care facilities.These requests are designed to prevent possible interference with sensitive medical equipment. PacemakersPacemaker manufacturers recommended that a minimum of15cm(6inches)be maintained between a handheld wireless device and a pacemaker to avoid potential interference with the pacemaker. These recommendations are consistent with independent research and recommendations by Wireless Technology Research.Persons with Pacemakers:n Should ALWAYS keep the device more than15cm(6inches)from their pacemaker when turned ON.n Should not carry the device in a breast pocket.n If you have any reason to suspect that the interference is taking place,turn OFF your device.Certifications International EMC(Electromagnetic Compatibility)and safety standardsDigi LR54Hardware Reference21。