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一、秤上设置1、IP地址常按设置键按←→键IP地址修改即可(主机地址不用动)2、四舍五入常按设置键按←→键合计金额选取N0即可二、软件安装(安装好光盘里的软件)三、电子秤参数设置(Link32)参数设置(走纸格式、四舍五入、价格、称重单位)1、测试连结(1)显示连通即可(2)Pingip地址(先在秤上设好IP)2、走纸格式(防址走多张)(1)(2)录入IP地址建好秤名称例:水果、蔬菜、大肉等(3)点击选中格的空白处出现(4)点这上面的功能设置后面的(5)右上角的作还原3、四舍五入设置(8)4、、单价、称重单位不要(9)打印单价、打印质量前面不用打√5、走纸方向(10)打印方向价签条码90度选“0”水平选“1”所有设置点即可下传四、价签设置1、点2、设定价签格式30X40、30X43、56X30等3、点文件新建设定好格式选定RotateLabel4、点组建选取打印项目5、大致项目(左侧可以设字体大小)6、设好后下传也可以从设好的秤里上收(朝下是电脑下传到秤、朝上是从秤接收到电脑)五、商品信息编辑(通常是与收款软件有接口程序)1、清空秤里原有的模模拟数据(1)点清除也可以清空(2)输入好IP地址(3)选好单品资料然后下发2、然后通过收款软件下传新编辑的商品信息(不同的软件不一样)六、编辑、打印秤快捷键1、点击文件选取“填充热键插片”2、自动从软件里加入3、设置字体点击鼠标“右键”4、打印键膜下传到秤里保存数据七、注意事项1、导入的商品单位是以kg为标准的;2、IP地址必须是唯一的,不得与同网段的IP相同;3、开机时秤上不得放置物品;4、装纸时先装底纸头放置小塑料片上后再按逆时针方向转动;。
1复式拉杆型膨胀节:山中间管所连接的两个波纹管及拉杆、端板和球面与锥面垫圈等结构件组成,2能吸收任一平面内的横向位移并能承受波纹管压力推力的膨胀节。
2 3 4 5人1 一端板盘拉椚3—中间營披纹1Tb5—球面舉圈M—啟肯图5复式拉杆別膨胀节4复式较链型膨胀节:是山中间管所连接的两个波纹管及销轴、钱链板、和立板等结构件组成,只5能吸收一个平面内的横向位移并能承受波纹管压力推力的膨胀节。
1-立扳浮一購轴;3 ■波纹營口一中问管拓絞借板.6—端管图6复式软琏型膨胀节7复式万向较链型膨胀节:山中间管所连接的两个波纹管及十字销轴、狡链板和立板等结构件组成,8能吸收任一平面内的横向位移并能承受波纹管压力推力的膨胀节。
1-端讣2i液紋陷3 —中钗链板2 —十字悄轴怡-立板图7复式万向顿链型膨胀节10直管压力平衡型膨胀节:由位于两端的两个工作波纹管和位于中间的一个平衡波纹管及拉杆和11端板等结构件组成,主要用于吸收轴向位移并能平衡波纹管压力推力的膨胀节。
A—AA-工作枝—拉杆|4-罕會波烷管|5・*板12图9直管压力平塘型匚胀节13复式自山型膨胀节:山中间管所连接的两个波纹管及结构件组成,主要用于吸收轴向与横向组合14位移而不能承受波纹管压力推力的膨胀节。
21波纹U <2—中间借)3—堆皆图4复式自由型膨胀节1516弯管压力平衡型膨胀节:III-个工作波纹管或中间管所连接的两个工作波纹管和一个平衡波纹17管及弯头或三通、封头、拉杆、端板和球面与锥面垫圈等结构件组成,主要用于吸收轴向与横向组18合位移并能平衡波纹管压力推力的膨胀节。
1 一>•板2—申何債"一工弗嵐歧—三通,6—千•发fit■疗一19 W «穹管压力平豪员膨族节20外压单式轴向型膨胀节:山承受外压的波纹管及外管和端管等结构组成,只用于吸收轴向位移而21不能承受波纹管压力推力的膨胀节。
1-进口端管;2-进口端环;3-限位环;4-外管;5-波纹管;6-出口端环;7-出口端管金属波纹管膨胀节的加强环:加强U 形波纹管中用来增强波纹管耐压能力的圆形或圆环形截面 部件。
一、单项选择题1、假设光接口类型为L-1.2,它表示:AA. 155M 长距光板,1550nm 窗口B. 622M 长距光板,1550nm 窗口C. 155M 长距光板,1310nm 窗口D. 622M 长距光板,1310nm 窗口2、以下〔〕类型光纤在1310nm 窗口的色散系数为0。
AA、G.652;B、G.653;C、G.654;D、G.6553、最能表达接口带宽大小的指标是AA、吞吐率B、时延C、丢包D、背靠背4、OTN 构造中,客户业务封装的过程是AA、OPUK-〉ODUK-〉OTUKB、ODUK-〉OPUK-〉OTUKC、OTUK-〉OPUK-〉ODUKD、ODUK-〉OTUK-〉OPUK5、以下从时钟的几种工作模式、精度最高的是哪一种?〔A 〕A、跟踪同步模式B、同步保持模式C、内部自由振荡模式6、各种业务信号复用成STM-N 的步骤是:(A )A. 映射定位复用B. 定位映射复用C. 定位复用映射D. 复用映射定位7、将2M、34M、140M 信号复用到1 个STM—1 里面,复用时隙利用率最高的是〔 A 〕A、2M 信号B、34M 信号C、140M 信号D、不确定8、LSX 单板不支持的保护类型是〔 A 〕A. ODUk SNCP B、板内1+1 保护C、客户侧1+1 保护D、光波长共享保护9、当OTU 单板不在位时,不会触发保护倒换的是AA. 光线路保护B. 客户侧1+1 波长保护C. 子架间波长保护10、OSN3500/7500 中可上下32 个2M 信号的支路板为 AA、PD1B、PQ1C、PL1D、PM111、OptiX设备运行环境中,正常直流电压值为-48V,允许电压波动的范围为:〔A〕A、20%B、10%C、15%D、30%12、关于OSN 3500/2500/1500 对偶关系的描述,正确的选项是〔A 〕A、OSN 3500 光板物理对偶关系是关于穿插板对称的,多光口板光口之间的对偶关系是按光口挨次一一对应的;B、光板必需插在对偶槽位才能组复用段环;C、不同速率的光口不支持组复用段环;D、非物理对偶的单光口板组环对倒换时间无影响。
Table of contentsIntroduction (3)High-density distribution frame solution (using 288-termination/splice panel) (4)Traditional LSX universal fiber distributing frame solution (4)Preterminated fiber termination panels with multifiber cable (5)Adapter-only fiber termination panels (6)Preterminated fiber termination/splice panels with pigtails (7)LSX optical distribution frame fiber termination panels featuring NG4 CMOD’s (8)Cabled modules with preterminated IFC (9)Cabled modules with rollable ribbon indoor/outdoor jacketing (11)Splice panels (12)Splice tray (12)Frame Accessories (13)Frame Installation Kit (13)Interbay management panel (14)End guard (14)Panel accessories (15)Cable clamp kit and cable ring kit (15)Standard cross-connect patch cord lengths (15)Ordering information for patch cords and attenuators (15)2 LSX Optical Distribution FramesIntroductionFrameCommScope’s LSX solution is designed to fit a variety of termination, splice and storage applications. Each frame option is builtto industry standards to ensure commonality with patch cord routing, slack storage and fiber protection. The frame is shipped complete with front cable management, top and bottom troughs.Termination panelThe LSX panel is available in adaptor only versions with in configurations of 24, 48, 72, 96, 144, and 288. Preterminated panels are available in 48, 96, 144, and 288 fiber versions with either intrafacility (IFC), outside plant (OSP) cables for ease of installation.Splice panelCommScope’s splice panel protects splices of multiple splice types.Value-added module (VAM) chassisAdding signal management and enhancement functions, such as splitters, couplers and wavelength division multiplexers, optimizes the value of your fiber network, by providing nonintrusive access to the optical signal for monitoring and testing signal integrity. The LGX compatible VAM chassis accommodates various splitter and WDM modules.Product overviewLSX Optical Distribution Frames 3Recommended applications Small to medium fiber count applications.Minimal cable management features.Lowest cost solution.DescriptionLGX compatible Number of fibers, future growth potential Up to 5,000Interconnect GoodCross-connectGood, no rear cable management Accommodates on-frame splicing Good Accommodates off-frame splicing GoodRear accessMust have full access to front and rear Density – terminations per frame 1,008 terminations per frame Front access to rear connector No VAM capabilities YesSlack storage location Utilizes drip loop method Connector accessStraight adapter* LGX is a registered trademark of Furukawa Electric North America.HIGH-DENSITY DISTRIBUTION FRAME SOLUTION (USING 288-TERMINATION/SPLICE PANEL)The termination and splice LSX-288 solution utilizes a traditional frame designed to fit a variety of termination, splice and storage applications. This front load frame is built to ensure commonality with patch cord routing, slack storage and fiber protection. Available accessories include panels, lower trough, interbay management panels (IMPs) and endguards.CommScope’s recommended fiber frame lineup uses three frames with 1.7 mm fiber jumpers to maintain the industry standard 2-inchpatch cord pile-up4 LSX Optical Distribution FramesTRADITIONAL LSX UNIVERSAL FIBER DISTRIBUTING FRAME SOLUTIONThe traditional LSX universal frame provides the framework for managing a cross-connect or interconnect fiber system. Use this frame for applications requiring lower density panels (12-144 terminations).E-501-LGX(Includes cable rings)E-501-L139-A UEGP-7PWPRETERMINATED FIBER TERMINATION PANELS WITH MULTIFIBER CABLEThe LSX panel can be loaded with intrafacility cable (IFC). The panel adapts to 19- or 23-inch rack mounting, WECO or EIA spacing. The 288-position panel can only be mounted in a 23-inch rack.121231that meets or exceeds our high quality standards.2LC does not double the density of the LSX panel.3All OSP cables are dielectric.Other configurations are available upon request.Please contact CommScope technical assistance center.LSX Optical Distribution Frames 5The LSX panel has the same mounting dimensions as an LGX compatible panel.LSX panel(Top view)72- or 96-position panel(Front view)144-position panel(Front view)6 LSX Optical Distribution Frames1LC Connectors do not double the density of the LSX panelPANELS WITH PIGTAILSLSX preterminated fiber termination/splice panels are available with asplicing area integrated into the panel. These panels include a rearflip-down splicing compartment. The panels can be ordered with12-fiber ribbon or 12-fiber stranded pigtails.288-Position termination/splice panel1 LC Connectors do not double the density of the LSX panel* 288 Termination /splice panel does not fit 19-inch frames. For 23-inch frames only.LSX Optical Distribution Frames79-INCH LSX OPTICAL DISTRIBUTION FRAME FIBER TERMINATION PANEL FEATURING NG4 CMOD’SThe 9-inch LSX ODF Fiber Termination Panel updates the LGX style chassis using a higher density NG4 quick termination cable and CMODs for plug-and-play installation.·Designed to be mounted in a 19’ or 23” frame. ·Up to 288 LC or 144 SC terminations (12 CMODs).·Each panel opening fits a cabled module, MPO module, or VAM module with tray adapter insert.·Modules may be mixed and matched in the same chassis. ·Rear cable management addressed cable management.5-INCH LSX OPTICAL DISTRIBUTION FRAME FIBER TERMINATION PANEL FEATURING NG4 CMOD’SThe 5-inch LSX ODF Fiber Termination Panel updates the LGX style chassis using a higher density NG4 quick termination cable and CMODs for plug-and-play installation.·Designed to be mounted in a 19’ or 23” frame. ·Up to 144 LC or 72 SC terminations (6 CMODs).·Each panel opening fits a cabled module, MPO module, or VAM module with tray adapter insert.·Modules may be mixed and matched in the same chassis. ·Rear cable management addressed cable management.LSX-70000-CMOD(Back)LSX-300000-CMOD(Back)LSX-70000-CMOD(Front)LSX-300000-CMOD(Front)8 LSX Optical Distribution FramesPRETERMINATED CABLE MODULESNG4access cabled modules will save operators significant time and cost in their cable deployments. Using the LC cabled module, for example, an installer can route a 24-fiber cable to any access tray in a universal chassis, then rapidly terminate the module’s 24-fiber connectors using a single click, rather than installing 24 individual connectors. Cabled modules are available in LC and SC, singlemode configurations. Each module is designed for craft friendliness. Individual adapter ports are labeled for easy identification. Two cable options are available with cabled modules, conventional IFC or I/O Rollable Ribbon cable.CABLED MODULES WITH PRETERMINATED IFC With IFC cabled module solutions, multiple cabled modules are preterminated to IFC cable. For example, a 144 LC configuration would include six 24-fiber cabled modules secured to a 144 IFC cable. Rather than handling and installing 144 discrete connectors, the six cabled modules quickly snap into place on the access tray saving installation time and greatly reducing wiring errors and the potential for breaking adjacent fiber connectors. IFC cabled modules are available with stub ends. All IFC cabled modules utilize reduced bend radius fiber and have the appropriate break out length to be installed in any access tray on any chassis in the frame. All IFC cabled modules ship with the cable clamp required on the NG4access frame.LSX Optical Distribution Frames 9LC Cabled Module with Preterminated IFCORDERING INFORMATION10 LSX Optical Distribution FramesCABLED MODULES WITH ROLLABLE RIBBON INDOOR/OUTDOOR JACKETINGCabled modules with Rollable Ribbon Indoor/Outdoor JacketingOrdering informationRollable Ribbon CableLSX Optical Distribution Frames 11SPLICE PANELSThe LSX splice panel has the same mounting dimensions as LGX compatible panels and consists of six drawers, designation labels and a cover. Maximum splice capacity is 144 when splicing individual stranded fibers or 432 fibers when using ribbon fiber and mass fusion splicing. The LSX splice panel requires F3DF splice trays. Each drawer holds twenty-four 900 micron pigtails or twelve 3.0 mm pigtails. Pigtails andcable enter and exit through access ports in the rear of the panel.Vertical cable guides must be ordered along with the LSX splice panel unless it is mounted into a frame that includes vertical cable guides. If needed, cable clamp kit must be ordered separately (below).SPLICE TRAYEach splice tray is purchased separately.Splice panel shown without vertical cable guides Ordered separately (front view)Splice tray12LSX Optical Distribution Frames* Use only one FST-F3DF-MT-D per splice drawer (24 splices per tray).Use trays with the LSX splice panel only (above).Note: Trays can not be used in preterminated LSX splice panels. Preterminated LSX splice panels already include splice trays.Frame AccessoriesFRAME INSTALLATION KITLSX Optical Distribution Frames 13Frame Installation KitNetwork Type Unequal Flange Frame Mounting DetailsUnderfloor Mounting KitFrame installation kits may be used on network frames and are seismic zone 4 rated.14LSX Optical Distribution FramesINTERBAY MANAGEMENT PANELEND GUARDEnd guards provide protection and a finished appearance at the start and end of frame lineups. They attach to either a frame or an interbay management panel. End guards serve as a mounting place foroutlets and switches and are used interchangeable for either left or right applications.Interbay management panelEnd guardPanel accessoriesCABLE CLAMP KIT AND CABLE RING KITThe cable clamp kit provides a means of securing the end of an OSP or IFC cable to the side of an LSX panel. The cable ring protects and manages jumpers on the frame.STANDARD CROSS-CONNECT PATCH CORD LENGTHSFor recommended cross-connect methods and installation instructions, refer to LSX user manual.ORDERING INFORMATION FOR PATCH CORDS AND ATTENUATORSCommScope offers a comprehensive line of cable assembly and accessory products including patch cords, IFC assemblies, attenuators. Please visit or contact customer service.LSX Optical Distribution Frames15CommScope (NASDAQ: COMM) helps design, buildand manage wired and wireless networks around theworld. As a communications infrastructure leader, weshape the always-on networks of tomorrow.For more than 40 years, our global team of greaterthan 20,000 employees, innovators and technologistshas empowered customers in all regions of the worldto anticipate what’s next and push the boundaries ofwhat’s possible. Discover more at Visit our website or contact your local CommScope representative for more information.© 2021 CommScope, Inc. All rights reserved.Unless otherwise noted, all trademarks identified by ® or ™ are registered trademarks, respectively, of CommScope, Inc. This document is for planning purposes only and is not intended to modify or supplement any specifications or warranties relating to CommScope products or services. CommScope is committed to the highest standards of business integrity and environmental sustainability with a number of CommScope’s facilities across the globe certified in accordance with international standards, including ISO 9001, TL 9000, and ISO 14001.Further information regarding CommScope’s commitment can be found at /About-Us/Corporate-Responsibility-and-Sustainability.BR-111950.2-EN (04/21)。
课程作业——集合论部分
一、 填空题
1、集合有两种表示方法,分别为 法和 法。
2、“使6
12-+=x x y 有意义的所有x 的集合。
”可表示为: 。
“大于3而小于或等于7的整数组成的集合”表示为 。
3、写出A={a,b,c,d}}的全部子集 ,真子集为 。
4、设A ,B 是两个集合,A={1,2,3,4},B={2,3,5},则A-B= ,ρ(B )-ρ(A )= ,ρ(A )的元素个数为 。
5、设},50|{},,21|{R x x x B R x x x A ∈≤<=∈<≤-=,则A-B= , B-A= ,~A= ,~B= 。
6、全集E={a ,b ,c ,d ,e},A={a ,d},B={a ,b ,e},C={b ,d}, 求(A ⋂B )⋃~C= ,ρ(A )⋂ρ(B )= 。
7、集合运算的基本定律:
1)A ⋂A=A ,满足 律;
2)A ⋂E=A ,满足 律;
3)~(A ⋃B )=~A ⋂~B ,满足 律。
8、A 和B 是任意两个集合,若有序对的第一个元素是A 的一个元素,第二个元素是B 的一个元素,则所有这样的有序对集合称为集合A 和B 的 ,
记作A ⨯B ,即A ⨯B= 。
9、设A 、B 是两个集合,其中A={1,2},B={a,b,c},则A ×B= ,B ×A= ,所以笛卡尔积不满足 律。
10、设A 、B 为两个有限集合,则根据包含排斥定理知:|A ∪B|= 。
11、有序对(a,b )=(x,y)的充分条件是 。
二、 单项选择题
1、由集合运算定义,下列各式正确的有( )。
A . X ⊆X ⋃Y B.X ⊇X ⋃Y C.X ⊆X ⋂Y D.Y ⊆X ⋂Y
2、下列命题正确的是( )。
A .φ⋂{φ}=φ
B .φ⋃{φ}=φ
C .{a}∈{a ,b ,c}
D .φ∈{a ,b ,c}
3、设集合},{y x X =,则=)(x ρ( )。
}}.
,{},{},{{.}};
,{},{},{,{.}};{},{,{.}};
{},{{.y x y x D y x y x C y x B y x A φφ 4、下列式子中正确的有( )。
..};,{.};{.;0.φφφφφφ∈∈∈=D b a C B A
5、设Z Y X ,,为任意集合,下列命题正确的有 ( )
A 、若Z X Y X ⋃=⋃,则Z Y =;
B 、若Z X Y X ⋂=⋂,则Z Y =;
C 、若,E Y X =⋃⌝ 则Y X ⊆;
D 、若Φ=-Y X , 则X Y =
6、对于任意集合S ,S S =Φ⋃,满足( )
A 、等幂律
B 、同一律
C 、零一律
D 、互补律
7、某个集合的元数为10,可以构成( )个子集。
A 、10
B 、20
C 、210
D 、102
8、下列命题正确的有( )
A 、}},{,,{},{b a b a b a ⊆
B 、}},,{,,{},{c b a b a b a ∈
C 、}}},{{,{},{b a a b a ⊆
D 、}}},{{,,{},{b a b a b a ∈
9、设集合A=},12|{<x x },2|{+∈==Z k k x x B ,C=}8|{≤x x ,则}8,6,4,2{可表示为( )
A 、
B A ⋂ B 、A B -
C 、C A ⋂
D 、A C -
10、设A 、B 、C 是任意集合,若有A ⊆B 且B ⊆C ,则有( )
A 、A ⊆C
B 、A ∉B
C 、A ⊆B
D 、不一定
三、 计算题
1、设全集,N E =有下列子集 A=}10,8,2,1{ B=},50|{2N n n n ∈<
C={},,6,2|{},,20,3|{N n i i n D N n n n n i ∈<=∈<且且整除可以被
求1))(D C A ⋂⋃ 2))(C A B ⋂- 3)D B A ⋃⋂)(~
2、化简下式:
(A -B -C )⋃((A -B )⋂C )⋃(A ⋂B -C )⋃(A ⋂B ⋂C )
3、设集合},,{},1,0{c b a B A ==,试求:
1)A ×B 2)B A ⨯2 3)A A ⨯)(ρ
4、一个年级170人中,120名学生学英语,80名学生学德语,60名学生学日语,50名学生既学英语又学德语,25名学生既学英语又学日语,30名学生既学德语又学日语,还有10名学生同时学习三种语言。
试问:有多少名学生这三种语言都没有学习?(提示:考虑试用文氏图来求出结果。
)
5、设A 、B 、C 为三个任意集合,证明题: 1))()()(C A B A C B A ⋂⋃⋂=⋃⋂
2))()())((C B C A C A B A -⋃-=--⋃
3))()()(B A B A ⋃⊆⋃ρρρ
4))()()(B A B A ⋂=⋂ρρρ。