ZyXEL Communications PLA-470 V2 - V3.0.5 Instalační příručka stáhnout pdf (Strana 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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