ZyXEL Communications PLA-470 V2 - V3.0.5 Przewodnik Instalacji Pobierz pdf (Strona 14)

Preface

Since the emergence of the first power line communication (PLC) products in early

2000, PLC technologies have been steadily undergoing great improvement, the aim

of which has been to deliver optimum performance. Today, PLC has reached matu-

rity and achieved performances comparable to the other LAN technologies, but

with the added advantage of being much easier to deploy.

PLC makes it easier to broadcast any type of data within a whole building,

including video over IP services proposed by the ISPs in their latest offerings. ISPs

are willing to include the maximum number of IP applications in their offers on any

type of terminal using the Ethernet interface to communicate with other terminals

and the Internet.

The current lack of an IEEE standard imposes the HomePlug technology as a

standard defacto, due to the amount of equipment already in use in the world

(reaching 15 million at the time of printing). A working group at IEEE is about to

finalize the first draft for a PLC standard with high performances, which is secure

and complies with the EMC allowed in a domestic environment. The problem of

interferences with Ham Radio technologies has been solved using a smart notching

technique within the common sub-bands of frequencies.

The PLC devices’ market will continue to grow in the near future with the

integration of PLC interfaces (Wi-Fi, Ethernet, cable TV, and so forth) to be able to

target the needs and aims of both network engineers and telecommunications

companies.

Organization of the Book

This book presents the PLC technologies from all perspectives, ranging from the

theory to the practical applications, in addition to being an installation guide for

PLC networks targeting individuals, professionals, and corporations.

The author and the different contributors have produced the best pedagogical

content enabling potential installers and users to master the techniques used in PLC

technologies that are the nexus of electrical networks and computer networks. The

many figures included in this book illustrate the different case studies, and exem-

plify the means by which network engineers can solve any problems arising while

deploying PLC networks.

The book is divided into thirteen chapters, in two discernible parts:

xiii

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 348 349

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ZyXEL Communications PLA-470 V2 - V3.0.5 Przewodnik Instalacji Strona 14