Structure cabling system
DCFirst Claim
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1. A local area network comprising:
- a plurality of local area network nodes;
a LAN switch;
a power supply subsystem; and
communication cabling connecting said plurality of nodes to said switch via the power supply subsystem for providing data communication, the power supply subsystem including a power management and control unit governing the supply of power to at least some of the plurality of local area network nodes via the communication cabling, wherein said power supply subsystem is operative to supply power to at least one of the local area network nodes via the communication cabling over wire pairs within the cabling not used for data communication, said power supply subsystem being operative to couple power into the communication cabling substantially without interfering with data communication and including current limiting circuitry controlling current delivered into the communication cabling, wherein said power management and control unit is operative to interrogate at least one node to which it is intended to transmit power over the communication cabling in order to determine whether the node'"'"'s characteristics allow it to receive power over the communication cabling.
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Abstract
This invention discloses a local area network including a hub, a plurality of nodes, communication cabling connecting the plurality of nodes to the hub for providing data communication, and a power supply distributor operative to provide at least some operating power to at least some of the plurality of nodes via the communication cabling.
375 Citations
13 Claims
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1. A local area network comprising:
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a plurality of local area network nodes;
a LAN switch;
a power supply subsystem; and
communication cabling connecting said plurality of nodes to said switch via the power supply subsystem for providing data communication, the power supply subsystem including a power management and control unit governing the supply of power to at least some of the plurality of local area network nodes via the communication cabling, wherein said power supply subsystem is operative to supply power to at least one of the local area network nodes via the communication cabling over wire pairs within the cabling not used for data communication, said power supply subsystem being operative to couple power into the communication cabling substantially without interfering with data communication and including current limiting circuitry controlling current delivered into the communication cabling, wherein said power management and control unit is operative to interrogate at least one node to which it is intended to transmit power over the communication cabling in order to determine whether the node'"'"'s characteristics allow it to receive power over the communication cabling. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
a reporting functionality operative to output a report pertaining to the status of at least one of the plurality of nodes.
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12. A network according to claim 11 wherein said report includes a report of at least one characteristic of at least one node from among the plurality of nodes.
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13. A network according to claim 12 wherein said at least one characteristic comprises an indication of power consumption of at least one node from among the plurality of nodes.
Specification