A passive optical network pon is a fiberoptic telecommunications technology for delivering. A passive optical network pon refers to a telecommunication technology that implements a pointtomultipoint architecture. Case studies of faults and countermeasures in a passive optical network system. We are continuously working with members of the testing services to build a cutting edge test bed of gpon olts, onts, fiber optic infrastructure, and test equipment. Its audience includes researchers, managers as well as network designers and operators. A pon reduces the amount of fiber and central office equipment required compared with pointtopoint architectures. A pon system can be fibertothecurb fttc, fibertothebuilding fttb or fibertothehome ftth.
Resources pdf corning lanscape passive optical solutions for lans pdf corning lanscape passive optical solutions for local area networks brochure. Pdf a survey of passive optical networks international. Passive optical networks pon have emerged as a highly attractive access network technology due to their very high bandwidth, low capital cost and relatively. Bibliographic record and links to related information available from the library of congress catalog. The main goal of the passive optical networks lans was to create the economy of scale and lower the cost of fiberoptic access systems by promoting common standards 9. From the back cover passive optical network pon technologies have become an important broadband access technology as a result of the growing demand for bandwidthhungry videoon. Implementing nextgeneration passive optical network. Passive optical components include simple optical connectors, splices, and fixed optical attenuators, but also more complicated, electronically controlled, optical devices like switches and variable optical attenuators. The pon uses passive optical splitters in lieu of ethernet copper cables. Star passive optical networks or pointtopoint active ethernet. Fttx networks and pointtopoint and pointtomultipoint configurations, moving to elaborating at length on pon and conclude which of its technologies will be the most optimal ones nowadays. Towards a new generation of passive optical networks. We then outline in some depth the technologies used to implement this architecture, including the gpon and e.
Osa a novel chaosbased encryption approach for future. With hundreds of successful projects completed in and around occupied facilities, we have a laserlike. In our architectures, optical signals are transmitted from fast tunable. Passive optical networks pons and pointtopoint ethernet are architectures that deliver tripleplay services over ftth networks directly from an operators central office.
Passive optical networks are the most important class of fiber access systems in the world today. The main goal will be to provide timely dissemination of information and. The gigabitclass passive optical networks are standardized and. In this paper, the architecture of a wavelengthdivision multiplexed orthogonal frequency division multiplexing ofdm pon system based on a centralized light source using direct detection is analyzed. In japan, ftth fiber to the home net works, in which optical fibers are installed directly to users homes, have.
Passive optical networks free download as powerpoint presentation. However, instead of each singlemode strand serving 32 houses, it serves 32 optical network terminals, or onts, that sit in each work area. Then there is no need to connect individual fibers between the hub and the customer. These are active optical networks and passive optical networks. The horizons of optical networks are much more than high speed physical layer. Standardization trends for nextgeneration passive optical. Passive optical products about finisar finisar corporation is a global technology leader in optical communications components and subsystems. Ethernet passive optical networks definition ethernet passive optical networks epon are an emerging access network technology that provides a lowcost method of deploying optical access lines between a carriers central office co and a customer site.
Brought to you by the association for passive optical lan. Profibus networks 1 profibus networks 2 topologies of simatic net profibus networks 3 configuring networks 4 passive components for electrical networks 5 rs 485 repeater 6 passive components for optical networks appendix a the simatic net optical link module olm for profibus b the simatic net optical plug olp for profibus c general information d installing. There are two important types of systems that make fibertothehome broadband connections possible. Optical fiberbased networks can meet the increasing demand for faster and higher bandwidth broadband connections to user premises. Contents may have variations from the printed book or be. A passive optical network pon is illustrated schematically in the figure below. Pdf the next generation of passive optical networks.
Passive optical components are data format transparent, combining and dividing optical power in some predetermined ratio. Capable of distributing voice, video and data to the desk top over one singlemode fiber, pons. Pdf the design of passive optical networks according to fsan. Block diagram of pon monitoring system figure 4 shows the block diagram of passive optical network pon. A pon consists of an optical line terminal olt at the service providers central office and a number of optical network units onus near end users. Lam passive optical networks principles and practice prelims final proof page x. So why are copper networks still so widely used although they have been. There is no available sniffer port on a passive optical splitter. Enhanced security in passive optical networks using wdm pon.
Depending on where the pon terminal is located, the system can be described as fibertothecurb fttc, fibertothebuilding fttb, or fibertothehome ftth. Keywords passive optical networks, access networks, transport technology, virtual private networks, optical access technologies, transport concepts, ethernet, cable networks, wireless access, packet switched networks. A passive optical network pon is a system that transmits all or most of the fiber cabling and signals to endusers. The unique reflection spectrum from fiber bragg grating fbg that is located in each optical network unit onu is manipulated in order to detect the fault network. Finally, in the practical part, simulation software that meets the design requirements will be chosen, the design of passive optical network will be. Epons build on the international telecommunications union itu standard g. Gpon gigabit passive optical network is a solution for optical access networks, offering high speed, costeffective broadband applications and triple play services voice, video and data. From the equipment room to the work area and everywhere in between, we offer plugandplay connectivity, high reliability and low cost of ownership.
It should be noted, however, the same concepts apply to all passive optical network. Passive optical networks pon commitment to safety as a threetime associated general contractors of california safety awards of excellence winner, we at cupertino electric understand the importance of job site safety. In that case, unpowered fiber optical splitters can make a single optical fiber serve multiple endpoints such as customers. The architectural choice for ecofriendly, low cost, high. Passive optical networks pon passive fiber access architectures gpon optimize the ftth business model by leveraging the high subscriber density allowed by passive splits as high as 64 users per pon or olt port.
The passive optical lan is a pointtomultipoint network in which a single aggregation switch can provide more than 7,000 ip voice, data, and video network connections to any ethernetbased device or system. A passive optical network consists of an optical line terminal olt at the service providers central office hub and a number of optical network units onus or optical network terminals onts, near end users. This article reports faults unique to an optical access system based on passive optical networks pons. The fsan full service access network group and itut international telecommunication. Pdf passive optical networks pons are telecommunication networks that provide services to users by no active elements.
A physical layer enhanced secure future generation passive optical network pon based on chaotic signal scrambling and the secure hash algorithm sha is proposed and demonstrated. Passive optical components and their applications to ftth. A complete reference on all the standards and technologies of passive optical networks a technology key to bringing future broadband applications to the home. Optimized for testing passive optical networks fttxmode operation this mode lets you configure your fot930 maxtester to suit your fttx. Experimental evaluation of tcp performance over 10gbs passive. If you continue browsing the site, you agree to the use of cookies on this website. It consists of optical line terminals olt, and more than one optical network units onus and connected through the optical distribution network odn. A passive optical network pon provides pointtomultipoint fiber optic network distribution using passive optical components to collapse the traditional network distribution and access layers into a single, flattened topology the result is a reduction in cabling infrastructure, a reduction in. Wave division multiplexing, passive optical networking this brief specifically addresses apon applications and the associated synchronization requirements required for the smooth transmission of realtime services over broadband networks. Principles and practice find, read and cite all the. Passive optical networks asynchronous transfer mode. A pon configuration reduces the amount of fiber and central office equipment required compared with pointtopoint architectures. Optical fiber communication has brought us a new in ternet society. Much fewer olts are required as a single olt module can support hundreds of homes.
The design of passive optical networks according to fsan. A passive optical network pon is a cabling system that uses optical fibers and optical splitters to deliver services to multiple access points. Our key device is the arrayed waveguide grating router awgr, a passive device that can achieve contention resolution in the wavelength domain. Passive optical networks yaakov j stein may 2007 and zvika eitan slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Adaptive modulation techniques for passive optical networks. The architectural choice for ecofriendly, low cost, high performance building networks increasing the use of renewable resource materials while decreasing reliance on petroleumbased materials in new construction is a major concern of todays architects. Each of the optical network terminals has 4 ports, serving either a single user or 2 users, assuming two ports per user. Technologies and applications of passive optical networks. The journal of high speed networks is an international archival journal, active since 1992, providing a publication vehicle for covering a large number of topics of interest in the high performance networking and communication area. Passive optical networks pons have emerged as an alternative to struc tured cablingbased switched net works with applicationindependent telecommunications outlets in the work area. Does everyone need 1 gbs continuously, all day, every day.
These products enable highspeed voice, video and data communications for networking, storage, wireless, and cable tv applications. Each offers ways to separate data and route it to the proper place, and each has advantages and disadvantages as compared to the other source. Case studies of faults and countermeasures in a passive optical. This technology allows sharing fiber optics among customers, reducing cost and maximizing the use of bandwidth. Passive optical networks pon are presented as an alternative to. Passive optical network pon knowledge introduction. This is the only book currently on the market that addresses optical networks. The 3m passive optical lan solutions pols offers a complete endtoend fiber solution. From there, around 32 fibers branch out to the subscribers.
Is called passive because unpowered optical splitters are used to enable a single optical fiber to serve multiple premises, typically 16128. Implementing nextgeneration passive optical network designs with fpgas passive optical network pon technology is emerging as the key access technology, as it has a scalable and costeffective architecture to satisfy the evergrowing bandwidth requirements generated by advanc ed applications such as highdefinition television hdtv. A feeder fiber from the central office co runs to a remote node rn, which houses a passive optical power splitterkombiner. Profibus networks 1 topologies of simatic net profibus networks 2 network configuration 3 active components 4 cables for profibus rs485 networks 5 bus connectors and preassembled cables 6 passive components for optical networks 7 passive components for profibuspa 8 passive components for power supply 9 testing profibus a lightning and overvoltage. A pon system consists of optical line termination olt at the. A passive optical network pon is a telecommunications network that uses. The fot930 allows for automated, bidirectional loss and orl testing of passive optical networks pons at 10 nm, 1490 nm and 1550 nm, the three wavelengths recommended for pons by itut g.
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