ZyXEL Communications PLA-470 V2 - V3.0.5 Installationsanleitung PDF herunterladen (Seite 146)

Figure 7.2 illustrates another architecture in the master-slave mode in a domes-

tic electrical network. Here we find conventional private electrical network devices

of which we had an overview in Chapter 2.

The electrical switchboard controls electrical wirings, power outlets, bulbs, and

electrical devices. The cables connected to the electrical switchboard are generally

known as “bus-bar electrical connections,” since they start from a central point

(electrical switchboard) and run right across the building according to the power

supply requirements.

In this topology, the master PLC device is ideally located at this central point

(electrical switchboard). The slave devices consist of the outlets scattered along the

electrical network.

The master equipment acts as a gateway between the fixed telephone network

(connected to a modem for access to the Internet, for example) and the PLC local

area network, which uses the electrical network. This device is also in charge of

managing the network and the various slave devices.

Table 7.2 summarizes the main advantages and disadvantages of the number of

bus-bar electrical connections.

There are many PLC device manufacturers who have chosen the master-slave

mode, notably the following:

•

Main.net. Develops products for public LV electrical networks that give pref-

erence to this mode in order to match the topology of the electrical networks.

PLC Technologies 127

Figure 7.2 Equipment position in a domestic LV PLC network in the master-slave mode

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ZyXEL Communications PLA-470 V2 - V3.0.5 Installationsanleitung Seite 146