FTTX Concepts and Applications [Gerd Keiser] on *FREE* shipping on qualifying offers. This book presents fundamental passive optical network. This book presents fundamental passive optical network (PON)concepts, providing you with the tools needed to understand,design, and build. FTTX concepts and applications / by Gerd Keiser. p. cm. — (Wiley series in telecommunications and signal processing) “A Wiley-Interscience publication.
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The three key PON market segments are known as greenfield, overbuild, and refur- bishment bby. Power at point 2 is half that at point 1. Chapter 6 Passive Optical Networks.
The distance between adjacent peaks is called the spectral free range FSR. Connections from the ONU to the premises can be by means of media such as twisted-pair wires e.
The performances are given for and nm operation. The optical splitter may serve up to 32 subscribers. Chapter 10 has more details on this application. Furthermore, since ATM uses high-speed transmission links, the small byte cells arrive at their respective destinations in the same continuous stream as they arrived at the multiplexer, despite having been interleaved with cells from other traffic streams.
This means that such a device can experience a large temperature variation of tens of degrees Celsius. Depending on the degree of network congestion, the source is required to control its rate. This means that an ATM network can carry both time- sensitive traffic, such as real-time video, and non-time-critical data traffic without any of the users being aware of the underlying packet segmentation and reassembly processes.
Basic BPON architecture and operational concept. Details are given in Chapter 4. Keiser, Local Area Networks, 2nd ed. The number of splitting paths can vary from 2 to 64, but typically they are 8, 16, or These tools also can be useful in the physical-layer design of FTTP networks. Such access networks typically are owned by service providers. Consider factors such as interfaces to data switches and CATV equip- ment, GUI-based network management features, support of switched digital video, size, and electric power requirements.
These wave- lengths are, and nm. The widespread use of Ethernet in both local area and metro networks makes it an attractive alternative transport technology for access networks. The choice of a photodetector material is important since its semiconductor prop- erties determine the wavelength range over which the device will operate.
Sending traffic in the upstream direction is more complicated, since all users have to time share the same wavelength.
This Fabry-Perot cavity e. As the radius applicstions curvature decreases, the loss increases exponentially until at a certain critical bend radius the loss becomes observable. Initially, end customers used only telephones, fax machines, or dial-up modems, for which inexpensive copper-based twisted-wire links from their premises to the out- side distribution networks were sufficient. Also, in addition to the 32 optical transceivers used for links between the subscribers and the local Ethernet switch, either two or four more optical transceivers are needed for the link running between the central office and the switch.
ONT1 sends two voice signals at 64 kbps each; every 10 seconds ONT2 sends 1-second bursts of information at a rate of 10 Mbps; ONT3 sends only idle cells at a rate of 10 per second.
Since the copper wires were already in place almost everywhere, service providers decided to send data in the unused 4-kHz to 1-MHz bandwidth of these wires. The X family designates the use of 8B10B encod- ing, and the letter R designates the use of 64B66B encoding of the data. The principles of point-to-point Ethernet are described wpplications Section 8.
This book presents fundamental passive optical network PON concepts needed to understand, design, and build high-capacity links for access networks. Consequently, the responsivity is a function of the wavelength and of the photodiode material. A, Academic Press, New York, However, this methodology results in a receiver sensitivity power penalty of gerr to 3 dB. Minimum cell rate MCR: In this situation only a small fraction of the ONT3 bandwidth is being used to send idle cells in order to keep the link in synchronization.
Since these loading coils are incompatible with Fttd, a customer cannot receive ADSL service if such an amplifying coil is located in the line between the central office and the customer. This group expanded zpplications include many more companies in the following years.
FTTX Concepts and Applications
In the reverse direction upstreaman OLT accepts and distributes multiple types of voice and data traffic from the net- work users.
The majority of connectors use a butt-joint coupling mechanism, as illustrated in Figure 5. An Instructor’s Manual presenting detailed solutions to all the problems in the book is available from the Wiley editorial department. To understand some of the terminology used for a TFF, let us look at some basic etalon theory.
For more information about Wiley products, visit our web site at www. The upper layers support user applications by structuring and organizing data for the needs of the user.
It also will serve well as a working reference for practicing engineers and managers dealing with FTTP network design, implementation, installation, testing, and maintenance.
Main constituents of an optical fiber link. The refractive index n2 of the cladding is slightly smaller than the index of the applivations i.
(Gerd keiser) fttx concepts and applications | kevin jaldin –
His popular books have been translated into Chinese, Japanese, and Italian. To connect to the outside world, these applications typically used the public switched telephone network PSTNwhich consists of twisted-pair cop- per wire links that run from customer premises to local telecommunication switch- ing distribution centers. Typically, the hole size is Large distance variations of customers from the central office result in different sig- nal power losses across the PON. The links can operate at 10 Gbps over distances up to 10 km.
Since this is not a normal con- dition, it is achieved by supplying appliications external energy to raise electrons to a higher energy level.
The point at which the output has dropped to 50 percent of its low-frequency value is called the 3-dB point.