
Figure 7.11 illustrates a F@st Plug type Sagem USB PLC modem.
PLC Ethernet Modems
The generalization of network interface cards in computers, network terminals, and
electronic devices, even in household appliances, simplifies the building of networks
by using the Ethernet board’s RJ-45 connectors.
This type of modem has become the most widely used PLC device. As well as
being simple to use and configure, its price continues to fall.
Figure 7.12 illustrates a Devolo Ethernet PLC modem of the dLAN Ethernet
HighSpeed 85 type.
The Ethernet network interface card of PLC modems was the first of the 10
baseT type (10 Mbit/s) for HomePlug 1.0 modems providing a maximum useful
throughput at the MAC layer level of 8.2 Mbit/s, then of the 100baseT type (100
Mbit/s) for HomePlug Turbo and AV modems.
PLC Modems 133
Figure 7.9 Hardware architecture of a PLC modem
Figure 7.10 Wallmount and desktop PLC modems
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