Epons build on the international telecommunications union itu standard g. A passive optical network pon is a system that brings optical fiber cabling and signals all or most of the way to the end user. The purpose of this article is to provide the nontechnical reader with an overview of. Traditional lan can no longer satisfy the increasing need for higher bandwidth. 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. Gpons are currently the leading form of passive optical networks. The internet as an industry is largely based around fiber. A passive optical lan consists of an optical line terminal olt in the main equipment room and optical network terminals onts located near endusers. As opposed to a standard copper wire in most networks, gpons are 95% more energy efficient. Transmission convergence layer specification this recommendation specifies the frame format, media access control method, ranging method, oam functionality and security in gpon networks. Visually explained passive optical networks pongponepon. Gpon training gigabit passive optical networking training. Monolithic photonic integrated circuits for 10g passive. The only report of its kind, this report evaluates the top optical network equipment vendors on criteria using concrete data and metrics, direct feedback from buyers, vendor market share, market share momentum, brand recognition, and reputation for innovation.
In some contexts, onu implies a multiple subscriber device. An example of a fourfiber shared rings in a normal operation. How to build a passive optical lan local area network fs. The gigabitclass passive optical networks are standardized and. Olt optical line termination an olt is the service provider endpoint of a pon and is placed in a co or head end ont optical network termination. 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. We can adapt this training course to your groups background and work requirements at little to no added cost. Pon consists of optical line terminal olt, optical network unit onu and optical distribution network odn. This includes creating an example bill of materials that can be used as a check list against a real project.
Answered 5 in passive optical networks tutorials prime. This results in a significant reduction in total cost of ownership tco, while enabling the introduction of new, efficient architectures that are deeply adjusted to meet emerging subscriber demands. Everything you always wanted to know about optical networking but were afraid to ask 1 richard a steenbergen nanog 57 february 20. Pdf a survey of passive optical networks international. Onos voltha olt onu nni uni uni logical switch voltha operation switch vlans dhcp mcast. Point to multipoint ethernet passive optical network epon tutorial. Basic concepts of passive optical networks gepon gpon fttx. Optimal solution to ftth recently, the increasing spread of the internet is the major driver for the development of new access technologies, which demand more capacities carry to bandwidth. Connectivity solutions for passive optical lan installations white paper pdf, 284. As shown in the following image, it comprises of optical line terminal olt, optical network unit and passive optical splitter. Gpon technology fundamentals video tutorial youtube. We then outline in some depth the technologies used to implement this architecture, including the gpon and e. A single fiber is used to support multiple customers.
We then outline in some depth the technologies used to implement this architecture, including the gpon and epon systems being. Our fbk3 and fk11 fiber optic cleavers make the process. Pons are called passive because, other than at the co and subscriber. The olt takes in all of the optical signals in the form of beams of light from onus and will convert it to an electrical signal. 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. According to ihs, cisco leads in the optical market.
A pon system consists of an olt at the service providers central office and a number of onu units near end users. Ethernet passive optical network epon a tutorial satelinet. A 2day gpon training course including gpon, xgpon 10 gigabit systems. Find out how were doing our part to confront this crisis. Olt is connected to optical network unit onu through optical distribution network odn. Gpon training gigabit passive optical networking tonex. 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. Analysis and design of adaptive ocdma passive optical. Pon is passive optical network featured with onetomultiplepoint architecture. Onu optical network unit olt optical line termination bng broadband network gateway. The nextgeneration passive optical network 2 ngpon2 standard allows for the convergence of multiple services networks onto a single odn. Pdf the next generation of passive optical networks. White paper gigabit passive optical networks passive optical lan solutions pols theory, design, and installation considerations sean mccloud, rcdd senior applications engineer, leviton network solutions. It is a network containing both active and passive elements.
Before discussing the specific details of the pon, it is worth. Passive equipment has no electrical power needs, it. Aon active optical network apon atm based passive optical network aps automatic protection switching asb assured bandwidth ason automatic switched optical network astn automatic switched transport network atm asynchronous transfer mode awg arrayed waveguide gratings beb best effort bandwidth bgp border gateway protocol. Besides, the simple topology shown in the following illustration, pon can work in other topologies. Comparing passive optical networks and passive optical lans. A passive optical network pon is a pointtomultipoint, fiber to the premises fttp network architecture in which unpowered optical splitters are used to enable a single optical fiber to serve multiple premises in simple it uses passive optical splitters to serve many subscribers from one optical unit a pon consists of i. Integration of ethernet passive optical network epon and wimax technologies is regarded as a promising solution for nextgeneration broadband access networks. Optical access networks passive optical network pon simple, under standardization technology 1 fiber line. Gigabyte passive optical networks gpons are networks which rely on optical cables to deliver information. Because of this setup, passive optical lan can decrease the amount of cable and equipment required to deploy a network. Gpon can transport not only ethernet, but also atm and tdm pstn, isdn, e1 and e3 traffic. Passive optical network pon which had no active components between co and customer. It looks at the design structure of passive optical networks and discusses the technology and explores the potential markets where it will provide the greatest benefits not only in cost saving but also in practicality. This course provides an overview of passive optical networks, design and construction.
These applications are also referred to as fttx, where x stands for h. Gpon use different wavelength in wdm to transmit and receive data for its uplink and downlink. Gpon training gigabit passive optical networking training course customize it. As we known, the core of most current operator networks is the asynchronous digital hierarchy synchronous optical network sdhsonet, which has always offered good fault management, performance monitoring, predictable latency, a protection mechanism and, of course, synchronization.
For more gpon device configuration related info, visit. Passive optical splitters are the key enabling technology for passive optical signal distribution and a significant part of the pon optical fiber plant investment. The course content is supplemented by some pdf support material. Odn use wave division multiplexing wdm technology to transmit data from olt to onu. The passive optical network techniques are largely anticipated to be the most economical solutions. View the pon 101 link for introductory information on the history and high level technical aspets of pon.
How gpon works gigabyte passive optical network gpon. Gpon training, gigabit passive optical networking training. A gpon network consists of olt optical line terminals, onu optical network unit, and a splitter. Depending on where the pon terminal is located, the system can be described as fibertothecurb fttc, fibertothebuilding fttb, or fibertothehome ftth. This tutorial discusses the economics, technological underpinnings, features and benefits, and history of epons.
They are based on optical technologies and components, and are used to route, groom, and restore wavelength levels and wavelengthbased services. 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. Basic concepts of passive optical networks gepon gpon. Abstract one of the most promising technologies for highspeed access to the internet are passive optical networks as they provide high data rates at low cost. We integrate network coding into the ethernet passive optical network architecture to. A comprehensive introduction raj jain professor of computer science and engineering washington university in saint louis. Survivability analysis of nextgeneration passive optical networks. View the tutorials link for more indepth topics on pon including recent applications for pon known as passive optical lan pol. A passive optical network pon is a fiberoptic network utilizing a pointtomultipoint topology and optical splitters to deliver data from a single transmission point to multiple user endpoints. Gpon network consists of mainly two active transmission equipments, namely optical line termination olt and optical network unit.
A passive optical network pon is a fiberoptic telecommunications technology for delivering broadband network access to endcustomers. Passive optical networks pons are currently evolving into nextgeneration pons. Texas state board of plumbing examiners case study pdf, 493. Passive, in this context, refers to the unpowered condition of the fiber and splittingcombining components.
Optical lan solution overview in a pol architecture, the network consists of a core switch known. Fiber cleaving is the fastest way to achieve a mirrorflat fiber end it takes only seconds. In japan, ftth fiber to the home net works, in which optical fibers are installed directly to users homes, have. Gpon technology fundamentals video tutorial duration. An overview of gpon in thean overview of gpon in the. Jan 29, 2016 gpon technology fundamentals video tutorial. There are two important types of systems that make fibertothehome broadband connections possible. Comparison between active and passive optical network fiber. Visually explained passive optical networks pon gponepon.
Passive optical networks pons are a fiberoptic access technology that can be used for residential and business access, and also for certain backhaul applications and data communications. The passive optical network pon is just one of several. Gpon fundamentals gpon stands for gigabit passive optical networks. A tutorial is presented discussing the basic issues associated with propagation of uncertainty. Onu optical network unit onu is a generic term denoting a device that terminates any one of the endpoints of a fiber to the premises network, implements a passive optical network pon protocol, and adapts pon pdus to subscriber service interfaces. Optical networks are telecommunications network of high capacity. Passive optical network an overview sciencedirect topics. Passive optical network pon is a form of fiberoptic access network that uses pointtomultipoint fiber to the premises in which unpowered optical splitters are used to enable a single optical fiber to serve multiple premises.
All that equipment add cost and complexity to the network. An overview of gpon in thean overview of gpon in the access. Olt for pons passive optical networks voltha architecture tp tptech profiles. I will explain more details on gpon fundamental in the next post. However, even as 1g and 2g pon deployments ramp up dramatically, carriers and equipment. This course is designed to benefit those requiring an in depth knowledge of the principles and applications of ten gigabit and gigabit passive optical networking and fibre systems such as fibre to the x fttx applications and their associated equipment, its flexibility and function within a modern transmission network. P a s sive optic al n et works contents introduction motivation optical access networks passive optical networks pon. A passive optical network, on the other hand, does not include electrically powered switching equipment. A passive optical network pon is a system that transmits all or most of the fiber cabling and signals to endusers. Approach becomes intolerable for large node networks. Product name tellabs gigabit passive optical network software release 29.
Passive optical networks are the most important class of fiber access systems in the world today. Marketing report the future of passive optical networking is. 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. Optical line terminal optical network unit passive optical splitter pstn internet iptv onu onu pon is a kind of passive optical network featuring onetomultiplepoint architecture. A pon network consists of optical line terminal olt, optical network unit onu, and passive optical splitter pos. Passive optical lan making advantages of the optical fibers, can provide not only higher bandwidth, but also a lot of other benefits to the local area network. Sep, 2016 comparison between active and passive optical 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. The optical fiber and splitters are the truly passive building blocks of the pon, with no electrical powering required. Therefore, network designers are wise to choose products of high quality and reliability from a trusted manufacturer that offers technical service support and an extended warranty. They require at least one switch aggregator for every 48 subscribers. Purpose of this tutorial why talk about optical networking. Both upstream and downstream traffic on one fiber 1490nm down, 10nm up. Depending on where the pon terminates, the system can be described as fibertothecurb fttc, fibertothebuilding fttb, or fibertothehome ftth. Everything you always wanted to know about optical.
Optical fiber communication has brought us a new in ternet society. Monolithic photonic integrated circuits for 10g passive optical networks. Odn optical distribution network an odn realizes the optical transmission from the olt towards the users and vice versa. Bandwidth on demand bod is an example of services that cause. In this paper, we analyze ber performance of a multiclass 1d2d ocdma system and. Optical devices and components basic concepts in optical networking optimization of optical network design how to handle faults in optical networks. Olt assigned time slots upstream optical line terminal olt in central office.
Pol is the enterpriselevel architecture adapted from the service provider passive optical network pon technology, which has been used to deliver bundled voice, data and video services to the premises for more than 20 years. As shown in the following image, it comprises of optical line terminal olt, optical network unit and. Active elements are in central office, at customer, in repeaters, switches and etc. The basic principle involves placing the fiber under tension, scribing with a diamond or carbide blade perpendicular to the axis, and then pulling the fiber apart to produce a clean break. Passive optical networks are used to simultaneously transmit signals in both the upstream and downstream directions to and from the user endpoints. Seba tutorial sdn enabled broadband access onf connect. Optical fiber, passive optical network, fttx, point to point, point to multipoint, wdm, simulation. This tutorial is divided into distinct chapters, which explains the structural features. Passive optical networks mohammad hadi, member, ieee, and mohammad reza pakravan, member, ieee abstractocdma systems can support multiple classes of service by differentiating code parameters, power level and diversity order. Because it requires power, an active optical network inherently is less reliable than a passive optical network. Olt optical line termination an olt is the service provider endpoint of a pon and is placed in a co or head end ont optical network.
Active optical networks, however, also have their weaknesses. Commscope pon design and engineering sp4210 commscope. Passive optical components and their applications to ftth. A passive optical network pon is a single, shared optical fiber that uses inexpensive. Basics of fiber optics mark curranbrian shirk fiber optics, which is the science of light transmission through very fine glass or plastic fibers, continues to be used in more and more applications due to its inherent advantages over copper conductors. Passive optical network pon knowledge introduction. What does this mean for the international fibertothehome broadband connection. Gigabit passive optical networking course covers the fundamentals of fttx gpon, xgpon and ngpon2 technologies. Among these technologies, fiber to the home ftth becomes the most suitable choice. Optic line terminal olt is the equipment at the central office or service provider location while optic network terminal ont is the power equipment in the customer end. These are active optical networks and passive optical networks. Optical fiberbased networks can meet the increasing demand for faster and higher bandwidth broadband connections to user premises. Since it requires power, an active optical network inherently is less reliable than a passive optical network.
Jan 22, 2016 optical lan passive optical network commscope. Jun 01, 2016 since it requires power, an active optical network inherently is less reliable than a passive optical network. Depending on where the pon terminates, the system can be described as fibertothecurb fttc, fibertothebuilding fttb, or. Sponsor united states army and defense information systems agency disa sponsor point of contact army. History of pon the first passive optical network pon activity was initiated by the fsan group in the mid1990s. Tutorial everything you always wanted to know about optical networking. 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.
387 1013 217 1528 350 82 1265 1061 1225 655 1476 862 371 1217 1407 970 540 1357 703 1493 324 359 4 123 687 210 160 513 1268 1121 380 1356 863 1369 588