ZyXEL Communications PLA-470 V2 - V3.0.5 Guia de Instalação Página 36

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In terms of responsibility, each part of the electrical network is operated by dis-
tinct organizations, responsible for supply and transport of electricity, as well as the
transport of data in the case of PLC networks.
Figure 2.3 illustrates this division of responsibilities as applied to the different
organizations composing the national electrical network.
Characteristics of Electrical Wiring
The physical support for communications based on PLC technologies is electrical
wiring. It was not originally designed to transport data; its physical characteristics
are primarily chosen to transport power at line voltage and frequency, such as 110
V/60 Hz.
Architecture of Electrical Networks 17
Figure 2.2 Simplified architecture of the electrical distribution network
Figure 2.3 Operational responsibilities in the electrical network
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