Fiber to the premises fttp also known as fiber to the home ftth and fiber to the building. Fibre network fn provides optical pathways between the gpon ntd and olt. Understanding fiber to the premises fttp fiber optic. Electronic communication and electronic devices and circuits, and the author of networking. This tutorial will address all of these questions and explain the technologies, architectures, and market trends for emerging optical networks. Modlink is ideal for mission critical applications such as data centers and storage area networks. P a s sive optic al n et works contents introduction motivation optical access networks passive optical networks pon. Pons are called passive because, other than at the co and subscriber endpoints, there are no active electronics within the access network. A passive optical network pon is a single, shared optical fiber that uses inexpensive. Data communication and computer network 6 wan may use advanced technologies such as asynchronous transfer mode atm, frame relay, and synchronous optical network sonet. It includes almost a thousand pages of materials created by the foa covering the basics to advanced topics on fiber optics and premises cabling. This tutorial is divided into distinct chapters, which explains the structural features of optical fibers and their connections in networks. Cable designs for fiber optic networks fiber optic tutorial. Optical fiber is a highlytransparent strand of glass that transmits light signals with low attenuation loss of signal power over long distances, providing nearly limitless bandwidth.
Because of this commitment, we are recognized by these top industry training certification organizations. Stmxx synchronous transfer module each bit rate is a multiple of the lowest level oc1 or stm1. A single fiber starting from the olt is split through passive optical splitters to serve 64 customerpremise onts. Onu optical network unit an onu is the ponside half of the ont, terminating the pon, and may present one or more converged interfaces, such as xdsl or ethernet, toward the user. 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. 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. Gpon gigabitcapable passive optical networks gpon supports. Designed for premise use where the high bend radius of. Physical reach physical reach is defined as the maximum physical distance that can be achieved for a. Both upstream and downstream traffic on one fiber 1490nm down, 10nm up. The same fiber carries both downstream olt towards ont and upstream ont towards olt bit streams viz. Ethernet passive optical network epon a tutorial satelinet. Personnel doing customer premises installation must 1 dress neatly preferably in logo shirts or uniforms for the service and stay clean, 2 have identification picture id preferably, 3 be friendly and courteous remember you are a guest in someones home, 4 show respect for the customers premises and 5 minimize the disruptions and.
Following are the pon terminologies odn optical distribution network. The single optical fiber consists of the core which is the thin glass center of the fiber where the light travels, the outer optical material that surrounds the core and reflects the light back into it is the cladding, and the plastic coating that protects the fiber from moisture and damage is the buffer coating. Optical network terminology sonetsdh synchronous optical network later called synchronous digital hierarchy this standard defines a synchronous frame structure for transmitting time division multiplexed signals. An odn realizes the optical transmission from the olt towards the users and vice versa. In case of conflict between the material contained in the tutorial and the material of the relevant recommendation the latter always prevails. Optical network termination ont optical network unit onu an optical network termination is a customer premises equipment that provides user interfaces to the customer. Addresses are numeric quantities that are easy for computers to work with, but not for humans to remember.
Purpose of this tutorial why talk about optical networking. This technology enables telecommunications service providers to send voice, data, and video at ever increasing rates. Overview of optical networks the network as a cloud of information flows connecting different participants. An overview of gpon in thean overview of gpon in the. Physical reach physical reach is defined as the maximum physical distance that can be achieved for a particular transmission system. Corning optical communications optical connectivity. An ont is typically located on the customers premises. Pdf fttx networks ftth networks belong to the family of fttx. Fiber to the home installation at customer premises. Ip addresses are 32 bit long, hierarchical addressing scheme. This tutorial is divided into distinct chapters, which explains the structural features. Pdf design and implementation of a fiber to the home ftth.
Everything you always wanted to know about optical networking but were afraid to ask 1 richard a steenbergen nanog 57 february 20. Optical networks are telecommunications network of high capacity. Design and implementation of a fiber to the home ftth. Everything you always wanted to know about optical. Molex plug and play advanced fiber optic systems offer premium factorycontrolled optical performance, enable flexible system configuration and fast, economical installation. Richard steenbergen, nlayer communications everything you ever wanted to know about optical networking but were afraid to ask. A central office distributes an optical signal over an optical distribution network odn. Our computer network tutorial includes all topics of computer network such as introduction, features, types of computer network, architecture, hardware, software.
Mesh topology in this type of topology, a host is connected to one or multiple hosts. In premises applications, fiber optic cables can be used as the backbone cabling in a standard structured cabling network, connecting network hardware in the computer roommain cross connect. The fiber to the premise knowledge center is your onestop source for. General area of study is on optical transport networks and access network infrastructures sg 15 is the focal point in itu t for the development of standards on optical and other transport network infrastructures, systems, equipment, optical fibres, and the corresponding control plane technologies to. Computer education for all provides tutorial on data communication and networks which also covers conceptual model and basic elements of data. Components of gpon ftth access network a passive optical network pon is a pointtomultipoint, shared optical fiber to the premises network architecture in. Premise ba fttc fttb olt olt architecture of optical access network dslam 250 700m urban coverag e 3.
Our computer networking tutorial is designed for beginners and professionals. Internetwork a network of networks is called an internetwork, or simply the internet. Whether using ethernet or wifi, you need a foundation to support your needs today and allow your network to grow into the future. Program to remotely power on a pc over the internet using the wakeonlan protocol. From anywhere in the world, any service or feature will be accessible irrespective of the connected network provider or network platform very high bandwidth infrastructure. The basics of fiber optics getting started in fiber optics you need tools, test equipment and most of all training. A passive optical network pon is a single, shared optical. Optical network segments are categorized with respect to the size of the area they cover. In case of conflict between the material contained in the tutorial and the material. They are based on optical technologies and components, and are used to route, groom, and restore wavelength levels and wavelengthbased services. Optical devices and components basic concepts in optical networking optimization of optical network design how to handle faults in optical networks. Premises networks are usually short, often less than the 100 meters about 330 feet used as the limit for standardized structured cabling systems that allow twisted pair copper or fiber optic cabling, with backbones on campus networks used in industrial complexes or institutions as long as 500 m or more, requiring optical fiber. Tutorial everything you always wanted to know about optical networking.
Thus, every connection in the ring is a point of failure. Longhaul core networks, also known as wide area networks wan or interchange carrier ixc public networks. The role of optical networks optical network segments are categorized with respect to the size of the area they cover. The goal of this website is educating students, users, designers, installers or anyone interested in the subject of fiber and cabling for communications systems. Fiber to the premise resources optical communications corning. Each of the devices on the network can be thought of as a node. Cornings fiber optic structured cabling solutions create the data centers of tomorrow through reliability, manageability, scalability, and flexibility.
An olt is the service provider endpoint of a pon and is placed in a. An onu typically requires a separate subscriber unit to provide native user services such as telephony. This guide will help you get started by providing very basic information we will also point you to more advanced studies and demonstrating that you dont need to break the bank to break into the field. Piyasat nilkaew is a network engineer with 15 years of experience in network management and consulting, and has extensive expertise in deploying and integrating multiprotocol and multivendor data, voice, and video network solutions on limited budgets. An optical fiber is made of 3 concentric layers see figure 3. Everything you always wanted to know about optical networking.
The purpose of this tutorial is to touch on a little of every. Ip is a standard that defines the manner in which the network layers of two hosts interact. A single fiber is used to support multiple customers. A network can be defined as a group of computers and other devices connected in some ways so as to be able to exchange data. This central section, made of silica or doped silica, is the light transmitting region of the fiber.
These network design rules ndrs provide an overview of the current physical network architecture and high. However, it is not always easy to find out what has been covered, and where it can be found. Passive optical network pon based ftth access network is. In this session, learn to identify the variables to consider before you build and what. Currently networks are electronic, in the future endtoend optical or photonic networking is foreseen intelligent programmable network. At the end of this network, optical network terminals onts will convert the optical signal into an electrical signal. The internet as an industry is largely based around fiber. Today in north america, there are two basic cable designs that are used for designing fiber optic networks. 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. Olt assigned time slots upstream optical line terminal olt in central office. Data communication and computer network failure of any host results in failure of the whole ring.
Fiber to the premises uses fiberoptic cables and associated optical electronics instead of copper wire to connect a customer to a network. Yet many router jockeys dont get enough exposure to it. There are methods which employ one more backup ring. We are committed to educating our customers, providing quality realworld fiber optic training on the latest products and applications, ensuring you will always receive the most uptodate and industry specific knowledge. This leads to a wide variety of confusion, misconceptions, and errors when working with fiber optic networks. Cfo 301 standard for installing and testing fiber optics management, security or fire alarm systems, or any other communications link. These are loosetube, which are used in many outside plants, duct, directburied applications, and tightbuffered, which are primarily used inside buildings. Triple play service highbandwidth longreach up to 20 km gpon is the choice of large carriers in the international. Passive optical network tutorial what is passive optical network. Figure 34 basic dwdm physical connectivity scenarios. The purpose of this tutorial to to touch on a little bit of every topic, from the. Pdf introduction of fiber to the home technology researchgate.
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