1. Its an emerging technology. The newest heavy hitter in the competitive world of broadband service. It offers high-speed access. Broadband over Power Lines (BPL) is also known as Power line communication , power line carrier (PLC),Power line Digital Subscriber Line (PDSL), mains communication, power line telecom (PLT), power line networking (PLN).

2. DigitalSubscriber Line(DSL) Fiber Technologies Coaxial Cable Wireless 3. Coaxial cable: Cable tv get a high speed connection to the internet. Performance does not depend on distance from central cable office. Disadvantage of sharing the bandwidth involved in it.Wireless: Send and receive data from any location within signal reach of an access point. 4. Broadband over Power Line (BPL) is a technology that allows voice and Internet data to be transmitted over utility power lines. It is an access solution that transmits data over electricity wiring. 5. In-HouseBPL : Electrical wiring is to network computers and devices within in a buildings. AccessBPL : It is a technology that provides broadband access over medium voltage power lines. 6. Theidea is not new. Electriccompanies have used this technology for years to monitor the performance of power grids. Thetransmission speed was slow. 7. Most BPL systems are designed to operate in the frequency spectrum from 1.705 to 30 MHz, but occasionally up to 80 MHz, using MV and LV power distribution network lines. 8. POWERLINE INFRASTRUCTURE In addition to lines, power grids use generators substations transformers and other distributors that carry electricity from the power plant all the way to a plug in the wall. 9. Access BPL equipment consists of: Injectors: BPL signals may be injected onto MV power lines with the injectors.Extractors: Provide interface between the medium power lines & the customers.BPL extractors are usually located at each LV distribution transformer feeding a group of homesRepeaters: For long runs of MV power lines, repeaters are employed to maintain the required signal strength. 10. BPL SYSTEM 11. Thelast mile is the final step that carries Internet into the subscriber's home or office. In the various approaches to last-mile solutions for BPL, some companies carry the signal in with the electricity on the power line, while others put wireless links on the poles and send the data wirelessly into homes. 12. CONFIGURATIONS FOR LAST MILE 13. BPL MODEMThe signal is received by a power line modem that plugs into the wall.BPL modems use silicon chipsets specially designed to handle the work load of pulling data out of an electric current. BPL modem has roughly the size of a common power adapter. It plugs into a common wall socket, and an Ethernet cable running to your computer finishes the connection 14. HighSpeed Internet Access to Rural areas as well. Uploadspeed thats as fast as your download speedFlexible of modificationSimplicity of installation 15. Therewould be no need to build a new infrastructure. Anywhere there is electricity there could be broadband. So cheaper. Securedata-encryption:The signals are not in the air where neighbours or others could potentially snoop your service. Powerline adapters are sold with encryption turned on . Secured network through a simple password-setting process . 16. Improvesthe competitiveness of the market for broadband services. Onewire offers both power and your highspeed communications needs. 17. Broadband Services High Speed Internet Access Voice Over IP Video Streaming Home Networking Home Automation Home Security Systems Telemedicine Applications 18. Interference issue: The system is expected to use frequencies of 1 to 30 MHZ which has been used by radio operators. Power lines are shielded & have potential to interfere with radio communications. Harmonics & Intermodulation: The interference caused by BPL harmonics is not reduced even if the fundamental frequency is notched. Intermodulation products are frequently encountered in power lines at bad joints, which readily produce mixing. 19. Noise:The power lines are inherently a very noisy environment. Every time a device turns on or off, it introduces a pop or click into the line.BPL signals cannot readily pass through transformers, as their high inductance makes them act as low-pass filters. Thesystem is based on shared bandwidth, in part due to the tree design of the infrastructure. 20. COMPARISON Product FeatureDial upADSLBPLSlowFastFasterNoNoYesCheapExpensiveCheapPhone/data cabling requiredYesYesNoNo added costs no expensive in-house data cabling required or expensive wireless routerAccess to the InternetYesYesYesWeb browsingVoIP phone access includedNoNoYesCost savingsIntegrated Internet and VoIPNoNoYesEase of use and cost savingsAlways onNoYesYesConvenienceCheap VoIP callsNoNoYesCost savings, no additional hardware or software requiredSuitable for videoNoSome higher speedsYesValue for money, fun to useSpeed Convenient access CostCustomer BenefitSaves time Convenience, available through virtually all power points Cost effective service 21. BPL has been considered as a potential 3rd wire that can compete with cable & DSL internet services . Electrical power lines offer a clear benefit ,but it is important to remember that BPL provisioning does not come without the additional infrastructure costs. As required, further refinements will be made to BPL technologies to enable them to reduce harmful emissions. 22. ANY QUERIES ?