ZyXEL Communications PLA-470 V2 - V3.0.5 Instalační příručka Strana 169

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As soon as the first HomePlug AV products appeared at the end of 2006, the
price of HomePlug Turbo products felt in turn by 10 to 20%.
For private individuals, PLCs are an ideal solution to share the same Internet
connection between two PCs. Moreover, this is the most usual application of PLC
devices. From now on, PLC devices, in particular multi-function PLC modems, inte-
grate all kinds of functionalities and act as Internet modem, router, firewall, DHCP
server, switch, and Wi-Fi access point (i.e., six devices in one). If the cost of all these
functionalities is taken into account, the price of these PLC devices is after all rather
attractive, considering that it is no longer necessary to lay cables or drill holes.
In a company, for the Ethernet cabling of a building, cables must be pulled in all
the rooms and telecommunication closets must be installed, which is not the case
with PLC. Another advantage of PLC over Ethernet is the dynamic change of topol-
ogy that it allows. In Ethernet, the topology change generally requires the laying of
new cables and results in additional costs.
Table 7.6 summarizes the costs of PLC devices at the end of the first quarter of
2008.
150 Equipment
Table 7.6 Costs of PLC Devices
DEVICE COST (IN EURO)
USB modem:
– HP 1.0
– Turbo
50 to 100
80 to 100
Ethernet modem:
– HP 1.0
– Turbo
– AV
50 to 100
80 to 100
100 to 300
Cable TV modem 100 to 300
Integrated outlet 100 to 300
PLC/Wi-Fi device 100 to 200
Multi-function PLC device 100 to 300
Audio and telephone PLC device 100 to 150
Inductive injector 120
Repeater 200 to 400
Filter 200 to 400
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