Power Line
Communication
Power line communication (PLC), also called power line carrier,
mains communication, power line telecom (PLT), or power line
networking (PLN), are terms describing several different systems for
using electric power lines to carry radio signals for communication
purposes.ETSI Project PLT (Power Line Telecommunications) standardizes PLC (Powerline
Communications) systems.
PLC technology uses the existing public and private mains power
wiring for the transmission of telecommunication signals, offering
Internet access via electrical networks in the home and at work. The
areas of developing data transmission solutions via powerlines
include outdoor (local loop) and in-house (home networking)
solutions.
The obvious advantage of PLC is that it is everywhere in the
developed world. PLC can deliver high speed, low cost Internet
access with ‘no new wires’, as well as the capability for
in-building Local Area Networks.
PLC Technology currently allows transmission speeds of 2 Mbps and
beyond! Extensive field trials by members of EP PLT during the last
2 years, both PLC-access and PLC in-house systems, all over the
world showed very encouraging results.
Deregulation:
• telecommunications allows new market entrants to provide services
along electricity networks;
• the power supply sector increases the demand for specific energy
distribution related information systems
Home-automation is another application for PLC in-house systems.
Harmonized standards will be developed to allow presumption of
conformity with the relevant EU/EC Directives: COMMISSION
RECOMMENDATION of 6 April 2005 on broadband electronic
communications through powerlines 2005/292/EC
EP PLT takes care about technical requirements to avoid interference
with users of the radio spectrum.
Beside ETSI internal liaisons with ETSI ERM, ETSI PLT has liaisons
with the PLC Forum and CENELEC SC205A to establish a fruitful
co-operation with these two groups attended by PLC experts.
Source: ETSI-PLT
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