Science Fair Project Encyclopedia
The telephony local loop connection is typically a copper twisted pair carrying current from the central office to the customer premises and back again. Individual local loop telephone lines are connected to the local central office or to a remote concentrator.
Local loop connections can be used to carry a range of technologies, including:
Local loop connections in this sense include:
- Electric local loop: PLT and PLC.
- Satellite local loop: communications satellite and cosmos Internet connections of satellite television.
- Cable local loop: Cablemodem.
Local Loop Unbundling
Local Loop Unbundling (LLU) in the UK is the practice of service providers renting a subscriber's line from British Telecom so that the subscriber may connect to the alternative supplier. It particularly applies to DSL connections. In some cases the local loop is half-unbundled, with BT continuing to provide voice services.
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