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 spectrum of electromagnetic EM radiation is shown in Figure 2. The recommendation addresses systems with nominal symmetrical line rates of Although this broad spectral output does not make an FP laser feasible for high-speed long-haul transmissions, this device is pop- ular for use gfrd short and intermediate distances up to 20 km.
Upstream voice and data traffic use a nm wavelength. Since these loading coils are incompatible with ADSL, a customer cannot receive ADSL service if such an amplifying coil is located in the line between the central office and the customer.
FTTX Concepts and Applications
Why was each applicztions ular methodology conceived? In many networks the traffic rate heading upstream is much lower than the rate of the downstream traffic going to the user.
If the network designer includes a 2. For PON applications the transmitters fall in between these two ex- tremes, with a major emphasis being low cost. The use of a passive optical network is attractive from several viewpoints. The applications ftx G. If the ONT has only one queue, it is allowed to report up to 13 thresholds.
In a practical photodiode, photons will create between 30 and 95 electron—hole pairs. This technique can produce very low splice losses typically, averaging less than nad. In addition, I am greatly indebted to the numerous people with whom I had many discussions and who supplied me with photos and other material.
The document includes BPON surviv- ability architectures, protection performance criteria, and protection-switching criteria and protocols. This is the optical power necessary to produce a photocurrent equal to the total noise current, or equivalently, to yield a SNR of 1.
For example, suppose that the net- work serves 16 subscribers. Thus, an indoor UPS is much less expensive and more reliable than an out- door supply, which is exposed to harsher environments. The photodetector must have a high quantum efficiency to generate a large sig- nal power. This causes the pulse to spread out and is the basis of modal dis- persion. In a standard tele- phone line the electric power needed to operate a basic phone is provided by means of the copper-based phone line.
The distance between adjacent peaks is called the spectral free range FSR.
This ex- presses the power level P as a logarithmic ratio of P referred to 1 mW. The multiplexed downstream signal is broadcast to all kkeiser subscribers. MANs are owned and operated by many applciations. Thus, if they travel sufficiently far, they eventually will overlap with neighboring pulses, thereby creating errors in the output since they become indistin- guishable to the receiver.
Since an EPON uses a shared transmission medium, an essential network function is to have orderly and efficient traffic control. A polyvinyl chloride PVC outer jacket then encapsulates the entire structure.
Here distribution cable 1 runs to a distri- bution box in an office park where up to eight separate business buildings can be served.
However, this method is not an efficient use of bandwidth. Suppose that a 1-ms data-corrupting electric pulse occurs on the line. If standard time-division multiplexing occurs as shown, there is a long delay between voice packets 1 and 2, for example, since the long data packet A is sandwiched between them.
The ATM rttx at the destination reassembles the cell payloads into the original data packet format.
(Gerd keiser) fttx concepts and applications | kevin jaldin –
Minimum cell rate MCR: Each of these techniques has certain advantages and various limitations. This package provides the following: The key requirements of a burst-mode receiver are high sensitivity, wide dynamic range, and fast response time. Optical power splitter having eight fiber flyleads which interface with a connector patch panel.
A major application for this one-way traffic is video distribution. Since conventional optical receivers are designed to accept optical signals with a constant amplitude and phase, they are not suitable for the burst-mode operation characteristic of PONs.
As shown in Figure 6. The PCB section contains the physical layer overhead information used to control and manage the network. In addition, since the passive devices have no electrical power or signal-processing requirements, they have extremely high mean time between fail- ures MTBFs. This could be the original sending station or the most recent router that received and forwarded the packet.
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. In addition, a light pulse from an optical source contains a certain slice of wavelength spectrum.
Progressive broadening and attenuation of two adjacent pulses traveling along a fiber. For example, dial-up Internet access using modems is an overlay on the traditional telephone net- work.