In telecommunication,this is known as point to multiple points or known as abbreviation p2mp. Passive optical network pon is a telecommunications technology that implements a pointtomultipoint architecture 1, 2. From the customers point of view it is their first mile, although from the access networks point of view it is known as the last mile. Passive optical network pon simple, under standardization technology 1 fiber line.
Gpon is the highest speed, longest life, lowest cost network infrastructure available in the market. Basepx10 defined in clause 60 added by ieee std 802. All optical networking circuit switching wdm networks, oadms. When pon was first introduced in the 1990s, fiber optic cable and optical transceivers were very expensive. The wavelength division multiplexing passive optical network wdmpon has been known as the utmost advanced technology with high security, guaranteed qos, transparent protocol and so on. Passive optical network pons do not require any power in the outside plant to power the filters or splitters, thereby lowering the overall operational cost and complexity. Its architecture implements a pointtomultipoint topology, in which a single optical fiber serves multiple endpoints by using unpowered passive fiber optic splitters to divide the fiber bandwidth among multiple access points. The 3m passive optical lan solutions pols offers a complete endtoend fiber solution. Optical fiber communication has brought us a new in ternet society. This course describes and compares the benefits, components and operation of the three main types of passive optical network bpon, gpon and epon as used in various configurations including fibre to the home ftth and fibre to the cabinet fttc. In japan, ftth fiber to the home net works, in which optical fibers are installed directly to users homes, have been so popular that the number of contrac.
A pon system makes it possible to share expensive components for ftth. Although pon has garnered a lot of attention, there are several tradeoffs that potential buyers should fully understand. Powered equipment is required only at the source and receiving ends of the signal. Flattening the last mile access ieee comsoc pocket guides to communications technologies weinstein, stephen b. Passive optical networks asynchronous transfer mode. Physical layer testing of passive optical network pon modules application note introduction a passive optical network pon1 is an access technology based on the specification developed by the full service access network fsan vendor consortium. At the co, also referred to as the headend, the publicswitched telephone network pstn and internet services are interfaced with the optical distribution network odn via the optical line terminal olt. An olt provides the networkside interface of the oan and is connected to one or more odns. Ethernet passive optical network epon ecomputernotes. Single fiber either in a ring or tree technology is shared, this highcost capital deployment of fiber for several kilometers is lower than if the carrier were to deploy. Parallel void thread in longreach ethernet passive.
In japan, ftth fiber to the home net works, in which optical fibers are installed directly to users homes, have. Its main characteristic is the use of passive splitters in the fiber distribution network, enabling one single feeding fiber from the provider to serve multiple homes and small businesses. However, since the bandwidth in pon is not dedicated to individual users, people who use a passive optical network may find that their system slows down during peak usage times. Point to multipoint ethernet passive optical network. It is passive since it uses unpowered splitters to route data sent from a central location to multiple destinations.
The optical line terminal olt is the heart of the pon network. Passive optical networks free download as powerpoint presentation. A working group of the institute of electrical and electronics engineers ieee produced. A passive optical network shares fiber optic strands for portions of the network. A passive optical network pon is a fiberoptic telecommunications technology for delivering broadband network access to endcustomers. An epon network is a shared network, analogous to hybridfibercoax networks, but with much greater bandwidth 1 gbps. Implementing nextgeneration passive optical network.
Jun 01, 2016 the passive optical network simply describes the fact that optical transmission has no power requirements or active electronic parts when the signal is going through the network. As time goes by, in order to meet the need for higher bandwidth, faster speed and better utilization of fiber optics, ftth access networks designs have developed rapidly. It should be noted, however, the same concepts apply to all passive optical network. Physical layer testing of passive optical network pon modules.
A pon system consists of optical line termination olt at the. Gpons passive optical network delivers a much higher bandwidth capacity than traditional networks, with speeds capable of exceeding the maximum nbn plan by ten times conservatively. The optical path that consists of these components is called the optical distribution network odn. Pons minimize the amount of optical transceivers, central office terminations, and fiber deployment. From the equipment room to the work area and everywhere in between, we offer plugandplay connectivity, high reliability and low cost of ownership. A passive optical network pon is a cabling system that uses optical fibers and optical splitters to deliver services to multiple access points. The passive optical network simply describes the fact that optical transmission has no power requirements or active electronic parts when the signal is going through the network. Also explore the seminar topics paper on ethernet passive optical networks with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year computer science engineering or cse students for the year 2015 2016. Telesail not only produces stateoftheart passive optical network components, we also provide expertise, reliable optical communication solutions to meet the needs of a multiple of different industry. On the passive optical network pon, it is possible to transit atm cells according to the technique developed by the working group fsan full service access network. Passive optical splitters are the key enabling technology for passive optical signal distribution and a significant part of the pon optical fiber plant investment. Building a next generation optical access network course ceg 790 instructor dr. A passive optical network is a form of fiberoptic access network. A pon is a telecommunications network that transmits data over fiber optic lines.
A pon reduces the amount of fiber and central office equipment required compared with pointtopoint architectures. The cabling has a longer life, longer reach, is less susceptible to interference, and has faster connector solutions. A pon system can be fibertothecurb fttc, fibertothebuilding fttb or fibertothehome ftth. Ethernet passive optical networks seminar report and ppt. Epons build on the international telecommunications union itu standard g. Network protection and reconfiguration required switching time 5ms 2.
Epon and gpon are popular versions of passive optical networks pons. Physical layer testing of passive optical network pon. The optical elements used in such networks are only passive components, such as fibers, splitterscouplers and connectors. In such a case, rtt i will be the dominant factor controlling the packet delay at low. Whats the difference between epon and gpon optical fiber. Technologies and applications of passive optical networks. Lanscape passive optical lan solution cornings lanscape passive optical lan pol solution is an alternative backbone technology that replaces traditional ethernet network aggregation electronics and copper cables with passive optical splitters and singlemode fibre. The use of forward error correction fec codes in future deployments of access networks is quite foreseeable and requires an analysis of the proper code for this. Multiaccess in ethernet passive optical networks epon. The optical line terminal olt resides in the co, connecting the optical access network to an ip, atm, or sonet backbone. The passive optical network techniques are largely anticipated to be the most economical solutions.
Pdf forward error correction in 10 gbitss ethernet. 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. Optical fiber, passive optical network, fttx, point to point, point to multipoint, wdm, simulation. With three wavelengths, it is possible to add a downlink channel for broadcast television channels. A pon consists of an optical line terminal olt at the service providers central. Passive optical network pon is a technology viewed by many as an attractive solution to the first mile problem 4, 5. Also passive optical splitters which connects olt and onu. The quality of service can be obtained by introducing a priority using dedicated to ethernet, a zone indicating the priority of the frame. Sep, 2016 besides, aon is a powered network, which decides its less reliable than pon. Both ends of the optical shaft are called olt optical line termination and onu optical network unit.
Optical splitter to other onts telcom room olt work area singlemode optical fiber t. Flattening the last mile access ieee comsoc pocket guides to communications technologies. In some cases, ftth systems may combine elements of both passive and active architectures to form a hybrid system. An ethernet passive optical network epon provides broadband access with a sharedfiber infrastructure and a maintenancefree optical distribution network odn. Keywords passive optical networks, access networks, transport technology, virtual private networks, optical access technologies, transport concepts, ethernet, cable networks, wireless access, packet switched networks. 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.
Using single mode fiber, the olt connects to passive optical splitters, which replace the switch in the closet and require no power. Bin wang presenter ram iyer a slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The network length in this case reached twenty kilometers with 32 stars passive. Passive optical network fiber to the x internet protocols. A pon is a pointtomultipoint optical network with no active elements in. Gigabit passive optical network gpon tdm architecture, 2. 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. Passive optical components and their applications to ftth. Barry kantner as the telecom markets begin to recover, many network operators are focusing on broadband access technologies. Building a nextgeneration optical access network article pdf available in ieee communications magazine 402. A pon network eliminates the need for switches and a wiring closet, which means fewer points of failure.
In longreach ethernet passive optical networks lrepons, the distance between olt and onus spans over a longer distance up to 100 km and hence longer rtt i. Eponethernet passive optical networkoptical communication. Pon benefits pon architecture fiber optic basics pon physical layer pon user plane pon control plane. Epon is one type of fiberbased ethernet access, using a passive optical 1. Explore ethernet passive optical networks with free download of seminar report and ppt in pdf and doc format. A pon is a fiber network that only uses fiber and passive components like splitters and combiners rather than active components like amplifiers. The institute of electrical and electronics engineers ieee and the. 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. Epon systems are a highly attractive access solution because of cost and performance. Telesail is one of a very few that can deliver both 1g epon and 10g epon,gpon equipment.
Passive optical networks asynchronous transfer mode data. Passive optical network pon implements a pointtomultipoint fiberbased access architecture passive fiber splitters are used to split a single optical fiber to serve multiple endpoints, without using dedicated fibers between the hub and customer. In this study, we propose the design and analysis of a pon architecture which has an excellent performancetocost ratio. An ont is an onu used for ftth that includes the user port function. Fiber to the home can use a passive optical network. Passive optical network pon and active optical network aon is a communication type used to transmit data from one point to many connection. For an active optical network, advantages include interoperability and scalability. Gigabit passive optical network gpon optical solutions. Time synchronization over ethernet passive optical networks. An alloptical fiberoptic switching device that maintains the signal as. Comparison between active and passive optical network. Optimum balance of bandwidth and logic to reduce component bom by a factor of three. Gigabit passive optical network gpon the future of cable network infrastructure is already here. The central office co endpoint is the optical line terminal olt, and the sub.
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