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Fiber-to-the-Home (FTTH) is also known as Fiber-to-the-Premises (FTTP) or Fiber-to-the-Building (FTTB). FTTH can provide a much faster service than the conventional cable as it uses light to transmit information.
FTTH broadband distribution network architectures can be based on either the active optical networks (AONs) or passive optical networks (PONs). An AON is a point-to-point fiber-to-the-premise network architecture, which uses electrically powered switching equipment to distribute and manage the signal. A PON is a point-to-multipoint fiber-to-the-premise network architecture that uses optical splitters to separate and collect optical signals as they move through the network. Using a PON architecture results in a reduction in the amount of fiber and central office equipment required compared with the point-to-point AON architecture.
A leading FTTH technology is based on the PON architecture. PON equipment at the head end or Central Office (CO) is interfaced into Public switched Telephone Network (PSTN) using DS-1s and is connected to ATM or Ethernet Interfaces. Electrical signals received are converted to optical signals and are combined onto a single fiber and transmitted to the end user via a passive optical splitter that splits the single fiber up to 128 times. The signal is then delivered to the user via a single fiber which can be up to 3000 ft. The optical signal is then converted to electrical signal using optical electrical converter (OEC), splitting the signal into services required by the end user.
FTTH typically provides 30-100 Mbps service, but due to inherent characteristics of optical fiber FTTH can literally provide infinite bandwidth. Transmission standards utilized in FTTH networks are based on Asynchronous Transfer Mode (ATM) and Ethernet Technologies.
FTTH finds use in the dynamic and reliable transportation of real-time information like the real-time pricing signals within the smart grid. FTTH also supports Advanced Metering Infrastructure (AMI) and Metering Data Management (MDM) systems.
 NETL, Compendium of Smart Grid Technologies: http://www.netl.doe.gov/smartgrid/referenceshelf/whitepapers/Compendium_of_Technologies_APPROVED_2009_08_18.pdf
Key Technology Area:
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