ZyXEL Communications PLA-470 V2 - V3.0.5 Guía de instalación descargar pdf (Pagina 275)

cast the Ethernet (Internet or LAN) frames to the various PLC devices connected to

the outlets.

It is important to recover a wiring diagram of the building in order to know the

topology of the electrical network and to see the various phase distributions (in the

case of a three-phase topology).

Choosing the Network Architecture

As we could see in Chapters 3 and 10, there are several types of network architec-

tures according to the PLC technologies used.

In the case of a peer-to-peer topology (HomePlug 1.0 or Turbo), one of the

devices is used as the gateway between the Ethernet network and the electrical net-

work, but has no specific place in the PLC network. This architecture type is relevant

for LAN type networks connected between themselves by a wired Ethernet back-

bone.

Since each device has the same hierarchical level in the network, it is important

not to space out the PLC devices too much on the electrical network (one device per

adjacent room).

In the case of an architecture in the master-slave mode (DS2 or Spidcom), one of

the devices (the master) benefits from a privileged place in the network and must be

capable of displaying the various slave PLC devices. The circuit breaker panel is an

ideal central location again to broadcast the PLC signal to the majority of the electri

256 PLC for Businesses

Figure 11.5 Inductive coupling methods for PLC devices over electrical wirings

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ZyXEL Communications PLA-470 V2 - V3.0.5 Guía de instalación Pagina 275