1. Power Line Communication (PLC) Hess GuillaumeIUP 1 – 2004/200529/04/05

2. Power Line Communication ● global technology Summary ● outdoor network ● indoor network ● Standards for PLC ● Advantages, disadvantages ● PLC in the world

3. Power Line Communication ● to transmit numerical information on the 230 Volts sector network Technology ● a coupler eliminates the low frequencies components ● each electrical connector becomes an Ethernet point

4. Power Line Communication ● electric charge changes 100 times a second Technology ● wave electromagnetic ● shortest, identified by frequencies : data transfer network ● adapter PLC: modem emitting a breath ● code comparable with the Morse

5. Power Line Communication ● only the highest frequencies make it possible to transport the data effectively Technology ● ADSL -> PLC : simultaneous division and emission data on various channels

6. Power Line Communication ● maximum outdistance indoor/outdoor : 200-300 m Technology ● network PLC surer than a WiFi network ● all equipment PLC has a MAC address

7. Power Line Communication Outdoor ● on the low tension part of the energy distribution network ● all buildings connected to the same district transformer ● a modem injects signal PLC ● a modem transposes signal PLC

8. Power Line Communication Outdoor ● "outdoor": from transformer to the residence ● coupling a high flow arrival Internet with PLC network ● IP supply level network : - arrival of access high flow at the transformer : the supplier of access - implementation for routing IP : IP service provider ● electrical supply level network : coupling at the transformer HT/LT

9. Power Line Communication Indoor ● an Internet connection is already available ● cases PLC : - Ethernet or USB port - connection towards the electrical connector

10. Power Line Communication Indoor ● to extend an Ethernet network ● to share high flow access Internet ● network PLC: type Ethernet 802.3 ● standard : Homeplug ● theoric flow : 14 Mb/s ● cost : 100 to 140 euros the simple adapter

11. Power Line Communication Standards ● no specific standard for the moment in Europe ● only one American standard: Homeplug V1.0.1, concerning only “Indoor” ● sectors touched by the PLC : - electricity - telecommunications - electromagnetic compatibility - the management of the frequency plan ● problems of standardization

12. Power Line Communication Standards ● the PLC apparatuses in France must have marking CE ● different use of the frequencies for each country from the UE ● to remain between 1,6 and 30 MHz ● level of emission lower than 90 dB

13. Power Line Communication Standards ● filters to protect the “prohibited” frequencies ● not disturb the radio transmissions and the services existing on the frequency band

14. Power Line Communication Advantages ● progressiveness and flexibility ● saving in wiring ● simplicity ● complementarity ● outdoor: possibility of bringing high-flow Internet accesses for the cities without ADSL ● mobility

15. Power Line Communication Disadvantages ● range of the system ● price of the equipment in indoor ● tributary of the state and the architecture of electric wiring ● divided band-width ● cost of the outdoor installation ● no European standard ● complex implementation in outdoor

16. Power Line Communication In the world ● more experiments than marketing ● 60 experiments in progress in 26 countries ● 12 tests of marketing

17. Power Line Communication Thanks for your attention