The capacitors in series across the supply fix a midpoint so that switches withstand only once the input voltage v in. Usually, a central computer is attached with subcontrollers which in turn participate in a variety of topologies hybrid topology hybrid topology. Performance analysis of next generationpon ngpon architectures a. An ont is typically located on the customers premises. A hybrid topology always accrues when two different basic network topologies are connected. Passive optical network pon 112 is a set of technologies standardized by itu. More study and test are highly desired to promote them. Take advantage of this course called network topologies to improve your networking skills and better understand topologies. All you need to do is download the training document, open it and start learning topologies for free. An introduction to pon technologies semantic scholar. The main benefit of peertopeer network is the ease of installation. In this case the topology generated by bis given by.
Pdf performance characterization of pon technologies art. Topologies network topologies physical topologies pointtopoint topology star topology reach extender. From the basic laws of source interconnections, a generic method. In essence, they function both as a client and as a server at the same time. A set u in x is said to be open in x if for all x2u, there exists b2bsuch that x2b u. Pdf pon topologies for dynamic optical access networks. We present and compare different ocdma pon architectures including ls versus cls architectures, and twofeeder versus singlefeeder architectures. A survey of computer network topology and analysis examples. Bordry cern, geneva, switzerland abstract this paper introduces power conversion principles and defines the terminology. Extra partner agents can be added in a similar way to the first added agent. Power stage topology power topologies quick reference. You can use a single queue manager for all three ibm mq managed file transfer queue manager roles, or you can use dedicated queue managers for specific roles.
Pons are called passive because, other than at the co and subscriber. Pdf joiner allows you to merge multiple pdf documents and images into a single pdf file, free of charge. Introduction network topology is the study of the arrangement or mapping of the elements links, nodes, etc. Chapter network types and topologies pearson he uk. Computer network topologies and their types pdf download. Chapter 0 introduction topology is an important and interesting area of mathematics, the study of which will not only introduce you to new concepts and theorems but also put into context.
So, in this situation we have hosts that both provide and consume network services. Fttx pon guide testing passive optical networks klinkmann. Before discussing the specific details of the pon, it is worthwhile to survey the alternate access technologies in order to understand the reasons for the pons success. Weak topologies 3 the topology generated by bis given by the following rule. Whyconformanceandinteroperabilitytestingarekeybylincolnlavoie,seniorengineerfortheuniversityofnew. Passive optical network technologies a passive optical network pon is a pointtomultipoint, fiber to the premises network architecture in which unpowered optical splitters utilizing brewsters angle principles are used to enable a single optical fiber to serve multiple premises, typically 32 to 128. Section ii is concerned with the sacocdma pon physical topologies. Pdf the simulation models for a typical pon layout are developed and three major pon. Ethernet passive optical network epon a tutorial overview a passive optical network pon is a single, shared optical fiber that uses inexpensive optical splitters to divide the single fiber into separate strands feeding individual subscribers.
R2 the otds must support odn topology retrieval from upstream ossbss. Networks are not often constructed with prewired positions to account for expansion. An olt is the service provider endpoint of a pon and is placed in a co or head end. Some features of this site may not work without it. Get pon topologies seminar report, ppt in pdf and doc format. Pon based access networks envisage the demonstration of scalability to allow gradual deployment of time and wavelength multiplexed architectures in a singleplatform without changes in fibre infrastructure and also highlyefficient bandwidth allocation for service provision and upgrade ondemand. All student who preparation competitive examination will help you for upcoming exams like railway,cat, ssc,mppsc and other state level exam. Each topology have some advantages and disadvantages as we discussed above so the solution is that we can integrate two or more different topologies to form a resultant topology having characteristic of combine topology known as hybrid. Fttx access networks and services quality assurance and. The passive optical network pon is just one of several access technologies used by service providers, but it enjoys a dominant position in the access market. As for the pushpull converter, t 1 and t 2 switches are alternately turned on during a time t on. However, we will consider five basic network structures topology. The concepts of sources and switches are defined and classified.
Oofdma pon topology is an option that uses orthogonal frequency division multiple access ofdma technology to differentiate onus, thus effectively improving bandwidth usage. The passive optical network pon is just one of several. Bus topology advantages uses a common backbone to connect all network devices backbone functions as a shared communication link which carries network data. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Pon topology fiber to the x network topology scribd. Hello friends computer network topologies and their types pdf download for all of you. Unlikeothernetworks,faultdetectionandtroubleshootingis easyinthistypeoftopology. This topology can exchange files between the two agents.
Epon is a point to multipoint p2mp network topology implemented with passive. An overview of gpon in thean overview of gpon in the. Pdf topology design and capex estimation for passive optical. Wdm passive optical network pon 1, where multiple 10g feeds from large cell. The passive optical network pon is just one of several access. Network topologies topology physical and logical network layout physical actual layout of the computer cables and other network devices logical the way in which the network appears to the devices that use it. P a s sive optic al n et works the broadband connected household e nergy m onito r i ng video conference ala r m lo c k laundr y b o ok ing real estate services ethernet. Students will gain a broad base of knowledge and familiarity with ftth architecture, network design, deployment technology, and operational skills. However, this topology requires driving a high side switch. However, most of these technologies are still in the research phase.
Ring network topologies do have unique disadvantages relative to other topologies concerning expansion or reconfiguration. The source node addresses the packet by using a multicast. Let x be a topological space and b then bis a basis for. Lan topologies multicast with a multicast transmission, a single data packet is copied and forwarded to a speci. An overview of gpon in thean overview of gpon in the access.
This topic is very good for all types of competition examinations. Certified fiber to the home professional detailed course outline this course features 16 hours of classroom lecture with an experienced ftth instructor. Design, implementation, and evaluation of an xgpon module for. Ragheb12 and habib fathallahl2 i king saud university, ksa 2 prince sultan advanced technologies research institute psa tri, ksa abstractnext generation passive optical networks ng pons is the natural development of pons toward achieving. A network topology is the arrangement with which computer systems or network devices are connected to each other. There are different types of the topologies like bus, ring, tree, mesh etc. Broadband pon bpon asynchronous transfer mode atm ethernet pon gigabit pon gpon 10gpon 10 gigabit epon rf video overlay radio frequency over glass wdmpon. This computer network topologies and their types pdf. Certified fiber to the home professional light brigade. Communication among pcs is a direct link with no central network controller, such as a server. Topologies may define both physical and logical aspect of the network. R3 the otds must support the manual initiation of testing and diagnostic. This topology can be used for an output power capability up to 500w.
The most common cable in schools is unshielded twisted pair, which is most often used with star topologies. Every pc shares its files and resources with the other pcs on the network. Power stage topology power topologies quick reference guide. If a node is added new cabling is required to connect the node to its two neighbors. The completely different approach of designing optimum pon topologies is presented in 19, in which the solution uses genetic algorithm for optimizing any. Pdf ponbased access networks envisage the demonstration of scalability to allow gradual deployment of time and wavelength multiplexed architectures. Passive optical networks pon are presented as an alternative to conventional. Presently, it is the exception, not the norm, to conjure a major network operator with only one access network topology. By continuing to browse the conceptdraw site you are agreeing to our use of site cookies.
Reprinted from passive optical network, by ray horak, 051702. A metric space is a set x where we have a notion of distance. The current versions of the charmm forcefield are charmm22 for proteins and charmm27 for lipids and nucleic acids including cmap correction to proteins. Topology and its applications is primarily concerned with publishing original research papers of moderate length. An overview of gpon in thean overview of gpon in the access network jttjoe trost november 14, 2008 agenda access networks the last mile definition trends pons revenue split history and projections characteristics of a pon terminology and architecture pons and fttx pon implementations apon and bpon gpon. Network topologies michigan technological university. This course is adapted to your level as well as all topologies pdf courses to better enrich your knowledge.
This representation can include the location of equipment cables, posts, connectivity devices. Regardless the multiplexing technique used, figure 1 represents a pon basic topology. Both logical and physical topologies could be same or different in a same network. Optical splitters creating a point to multipoint topology are also the same technology as those used by other pon systems. A combination of any two or more network topologies.
367 70 151 663 317 1551 1117 1655 190 775 987 386 290 449 838 1657 1356 1407 858 214 1281 354 1505 873 1160 1684 505 1266 742 1654 1210 101 134 903 819 1315 210 757 1043 1186 1113 975