Multi-subnet power line communications system and method
First Claim
1. A system for providing power line communications over a power distribution system having a plurality of low voltage (LV) subnets that each supply power to a plurality of customer premises, comprising:
- a power line communications device having a first modem communicatively coupled to a first LV power line subnet to communicate data signals therethrough;
a subnet coupler communicatively coupled to the first LV power line subnet and to a second LV power line subnet; and
wherein said subnet coupler is configured to substantially prevent the flow of power between the first and second LV power line subnets and to couple data signals between the first and second LV power line subnets.
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Accused Products
Abstract
A system that includes low voltage power line subnet coupler that provides bi-directional communications between multiple power line subnets while substantially preventing the flow of power is provided. The system may include a power line communications device coupled to a first LV power line subnet, and a low voltage power line subnet coupler providing a data communications path between the first low voltage power line subnet and a second low voltage power line subnet. Additionally, some embodiments include a low voltage repeater communicatively coupled to the second LV power line subnet.
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Citations
23 Claims
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1. A system for providing power line communications over a power distribution system having a plurality of low voltage (LV) subnets that each supply power to a plurality of customer premises, comprising:
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a power line communications device having a first modem communicatively coupled to a first LV power line subnet to communicate data signals therethrough; a subnet coupler communicatively coupled to the first LV power line subnet and to a second LV power line subnet; and wherein said subnet coupler is configured to substantially prevent the flow of power between the first and second LV power line subnets and to couple data signals between the first and second LV power line subnets. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for providing power line communications over a power distribution system having a medium voltage power line and a first and second low voltage (LV) subnet that each supply power to a plurality of customer premises, comprising:
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receiving first data from the MV power line; transmitting the first data over the first LV power line subnet; coupling the first data from the first power line subnet to the second power line subnet; and receiving the first data at a user device coupled to the second LV power line subnet. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A device for communicating data signals between first and second low voltage (LV) subnets that each supply power to a plurality of customer premises, each low voltage subnet having a first energized conductor and a second energized conductor, the device comprising:
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a first data path comprising a first high pass filter configured to be communicatively coupled to the first energized conductor of the first LV power line subnet and to the first energized conductor of the second LV power line subnet to couple data signals therebetween while substantially preventing the flow of power; said first data path further comprising a first fuse communicatively coupled to said first high pass filter; a second data path comprising a second high pass filter configured to be communicatively coupled to the second energized conductor of the first LV power line subnet and to the second energized conductor of the second LV power line subnet to couple data signals therebetween while substantially preventing the flow of power; and said second path further comprising a second fuse communicatively coupled to said second high pass filter.
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Specification