Redundant powered device circuit
First Claim
1. A redundant powering system for a powered device receiving power over communication cabling, the redundant powering system comprising:
- a redundant power supply comprising a first power sourcing equipment and a second power sourcing equipment;
a powered device; and
communication cabling connecting said redundant power supply to said powered device, said communication cabling comprising a first path connecting said first power sourcing equipment to said powered device and a second path connecting said second power sourcing equipment to said powered device, said first and second paths at least partially being constituted of a single structured cable, said powered device comprising at least one signature impedance, said redundant power supply being operable so that power is operably supplied to said powered device from only one of said first and second power sourcing equipment.
3 Assignments
0 Petitions
Accused Products
Abstract
A redundant powering system for a powered device receiving power over communication cabling, the redundant powering system comprising: a redundant power supply comprising a first power sourcing equipment and a second power sourcing equipment; a powered device; communication cabling connecting the redundant power supply to the powered device, the communication cabling comprising a first path connecting the first power sourcing equipment to the powered device and a second path connecting the second power sourcing equipment to the powered device, the first and second paths at least partially being constituted of a single structured cable, the at least one powered device comprising at least one signature impedance, the redundant power supply being operable so that power is operably supplied to the powered device from only one of the first and second power sourcing equipment.
66 Citations
22 Claims
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1. A redundant powering system for a powered device receiving power over communication cabling, the redundant powering system comprising:
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a redundant power supply comprising a first power sourcing equipment and a second power sourcing equipment;
a powered device; and
communication cabling connecting said redundant power supply to said powered device, said communication cabling comprising a first path connecting said first power sourcing equipment to said powered device and a second path connecting said second power sourcing equipment to said powered device, said first and second paths at least partially being constituted of a single structured cable, said powered device comprising at least one signature impedance, said redundant power supply being operable so that power is operably supplied to said powered device from only one of said first and second power sourcing equipment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of redundant powering of a powered device over communication cabling comprising:
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supplying a first power sourcing equipment;
supplying a second power sourcing equipment;
supplying a powered device comprising at least one signature impedance;
supplying communication cabling connecting said first power sourcing equipment and said second power sourcing equipment to said powered device, said communication cabling comprising a first path connecting said first power sourcing equipment to said powered device and a second path connecting said second power sourcing equipment to said powered device, said first path and said second path being part of a single common cable;
detecting by said first power sourcing equipment said signature impedance;
powering said powered device from said first power sourcing equipment via said first path; and
in the event of failure of said first power sourcing equipment to supply power via said first path, powering said at least one powered device from said second power sourcing equipment via said second path without requiring detection subsequent to said failure event. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A redundant powering system comprising:
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a first power sourcing equipment;
a second power sourcing equipment;
a powered device;
a first path comprising communication cabling connecting said first power sourcing equipment to said powered device; and
a second path comprising communication cabling connecting said second power sourcing equipment to said powered device, said first and second paths at least partially being constituted of a single structured cable, wherein said powered device comprises at least one signature impedance, and wherein power is supplied to said powered device from said first power sourcing equipment via said first path and said second power sourcing equipment is operable to remain in a standby mode, said second power sourcing equipment being operable to supply power to said powered device via said second path only in the event that said first power sourcing equipment does not supply power to said powered device, said second power sourcing equipment supplying said power without requiring detection subsequent to said first power sourcing equipment not supplying power.
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Specification