System for providing power over Ethernet through a patch panel

• US 20060063509A1
• Filed: 10/31/2005
• Published: 03/23/2006
• Est. Priority Date: 01/12/1999
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Microsemi Corp. - Analog Mixed Signal Group, Ltd. (Microchip Technology Incorporated)
• Inventors: Pincu, David, Korcharz, Dror
• Granted Patent: US 7,612,470 B2
• Time in Patent Office: Days
• US Class Current: 455/402
• CPC Class Codes: G06F 1/266 Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
• CPC Class Codes: H04L 12/10 Current supply arrangements

Abstract

A system for providing power over Ethernet comprising: a plurality of means for receiving a current limited power signal, each of the means receiving a unique current limited power signal; a plurality of means for connecting one end of a cable, the cable comprising a plurality of twisted wire pairs, each of the cables providing a data communication and power path to a particular node connecting jack; a plurality of connectors each for connecting one end of a patch cable, the plurality of connectors being each operatively connected by pairs of conductors to a unique one of the plurality of means for connecting one end of a cable to allow for data communication between the patch cables and the cables; and a plurality of means for injecting the received current limited power signal onto at least one of the pairs of conductors.

Claims

1. A power ready patch panel comprising:

a plurality of means for receiving a current limited power signal, each of said means receiving a unique current limited power signal;

a plurality of means for connecting one end of a cable, the cable comprising a plurality of twisted wire pairs, each of the cables providing a data communication and power path to a particular node connecting jack;

a plurality of connectors each for connecting one end of a patch cable, said plurality of connectors being each operatively connected by pairs of conductors to a unique one of said plurality of means for connecting one end of a cable to allow for data communication between said patch cables and said cables; and

a plurality of means for injecting said received current limited power signal onto at least one of said pairs of conductors.

2. A power ready patch panel according to claim 1, further comprising a status indicator indicating a status of power delivery via said current limited power signal.

3. A power ready patch panel according to claim 2, wherein said status indicator comprises at least one LED associated with each of said plurality of means for connecting one end of a cable.

4. A power ready patch panel according to claim 2, wherein said status indicator displays an indication of at least one of power supplied to a node connected to the node connecting jack, an overload condition, and a short circuit condition.

5. A power ready patch panel according to claim 1, wherein at least one of said plurality of means for connecting one end of a cable comprises one of a 66 punch down, 110 punch down, BIX punch down, a Krone IDC and an 8 contact insulation displacement connector.

6. A power ready patch panel according to claim 1, wherein at least one of said plurality of connectors for connecting one end of a patch cable comprises an RJ-45 socket.

7. A power ready patch panel according to claim 1, meeting the definition of connecting hardware according to the TIA/EIA 568 standard.

8. A power ready patch panel according to claim 7, wherein the power ready patch panel performs in accordance with one of category 5, category 5e and category 6 requirements of said TLA/EIA 568 standard.

9. A power ready patch panel according to claim 1, wherein at least one of said means for injection comprises one of a transformer and an inductor.

10. A power ready patch panel according to claim 1, wherein at least one of said received current limited power signals is injected by the respective means for injecting onto pairs of conductors not utilized for data communication.

11. A power ready patch panel according to claim 1, wherein at least one of said received current limited power signals is injected by the respective means for injecting onto pairs of conductors utilized for data communication.

12. A power ready patch panel according to claim 1, further comprising a type indicator operable to indicate a type of operation to a source of said received plurality of current limited power signals.

13. A power ready patch panel according to claim 12, wherein said type indicator comprises a pre-determined resistance, said type of operation being detectable from the value of said pre-determined resistance.

14. A power ready patch panel according to claim 12, wherein said type of operation comprises at least one of spare pair powering, data pair powering, a combination of data pair and spare pair powering, a disabled condition and a priority.

15. A power ready patch panel according to claim 12, wherein said type of operation comprises an indication of vendor specific features to be supported by the source of said plurality of current limited power signals.

16. A power ready patch panel according to claim 1, wherein at least two of said plurality of means for receiving a current limited power are constituted of a single detachable connector.

17. A power ready patch panel according to claim 1, wherein the current limited power signals are in accordance with IEEE 802.3af.

18. A system for providing power over Ethernet comprising:

a power sourcing device, said power sourcing device providing a plurality of current limited power signals; and

a power ready patch panel detachably connected to at least one of said plurality of current limited power signals, said power ready patch panel comprising;

a plurality of ports for connecting a node connecting cable, the node connecting cable comprising a plurality of twisted wire pairs providing a data communication and power path to a particular node connecting jack;

a plurality of ports for connecting a patch cable, each of said plurality of ports for connecting a patch cable being associated with a unique one of said plurality of ports for connecting a node connecting cable; and

an operative connection between said detachably connected at least one current limited power signal and at least one of said plurality of ports for connecting a node connecting cable.

19. A system according to claim 18, further comprising a means for indicating a status of said connected at least one current limited power signal.

20. A system according to claim 19, wherein said means for indicating status comprises at least one LED associated with each of said plurality of ports for connecting a node connecting cable.

21. A system according to claim 18, further comprising a status indicator indicating a status for each of said plurality of ports for connecting a node connecting cable, said indicator displaying an indication of at least one of power supplied, no power supplied, an overload condition and a short circuit condition.

22. A system according to claim 18, wherein each of said plurality of ports for connecting a node connecting cable comprises one of a 66 punch down, 110 punch down, BIX punch down, a Krone IDC and an 8 contact insulation displacement connector.

23. A system according to claim 18, wherein each of said plurality of ports for connecting a patch cable comprises an RJ-45 socket.

24. A system according to claim 18, wherein said power ready patch panel meets the definition of connecting hardware according to the TIA/EIA 568 standard.

25. A system according to claim 24, wherein said power ready patch panel performs in accordance with one of category 5, category 5e and category 6 requirements of said TIA/EIA 568 standard.

26. A system according to claim 18, further comprising one of a transformer and an inductor, said operative connection comprising said one of a transformer and an inductor.

27. A system according to claim 18, wherein said operative connection connects said connected at least one current limited power signal to twisted wire pairs of the node connecting cable not providing a data communication path.

28. A system according to claim 18, wherein said operative connection connects said connected at least one current limited power signal to twisted wire pairs of the node connecting cable providing a data communication path.

29. A system according to claim 18, wherein said power ready patch panel further comprises a type indicator operable to indicate a type of operation to said power sourcing device.

30. A system according to claim 29, wherein said type indicator comprises a pre-determined resistance detectable by said power sourcing device, said type of operation being encoded by the value of said pre-determined resistance.

31. A system according to claim 29, wherein said type of operation comprises at least one of spare pair powering, data pair powering, a combination of data pair and spare pair powering, a disabled condition and a priority.

32. A system according to claim 29, wherein said type of operation comprises an indication of vendor specific features, said power sourcing device being operable to deliver said vendor specific feature in accordance with said indication.

33. A system according to claim 18, further comprising a plurality of detachable connections between said power sourcing device and said power ready patch panel, each of said plurality of detachable connections being associated with a unique one of said plurality of current limited power signals, wherein at least two of said plurality of connections are at least partially constituted of a single detachable connector.

34. A system according to claim 18, wherein said power sourcing device is operable in accordance with IEEE 802.3af.

35. A power sourcing device for use with a power ready patch panel, the power sourcing device comprising:

a plurality of current limited power signals; and

an output signal providing display information regarding each of said plurality of current limited power signals.

36. A power sourcing device according to claim 35, wherein said information comprises one of an overload condition, a normal power supply condition, and a short circuit condition.

37. A power sourcing device according to claim 35, further comprising a type indication receiver operable to obtain a type of operation of the power ready patch panel.

38. A power sourcing device according to claim 37, wherein said type of operation is at least one of:

spare pair powering;

data pair powering;

a combination of data pair and spare pair powering;

a disabled condition; and

a priority, the power sourcing device being operable responsive to said obtained type operation.

39. A power sourcing device according to claim 37, wherein said type indication is indicative of vendor specific features, the power sourcing device being operable in accordance with said indication.

40. A power sourcing device according to claim 35, wherein said plurality of current limited power signals are each in accordance with IEEE 802.3af.

41. A power sourcing device according to claim 35, wherein said output signal is sufficient to display said display information on a supplied display.

42. A method of powering nodes in a data network, the method comprising:

detachably receiving a current limited power signal;

connecting one end of a cable comprising a plurality of twisted wire pairs, the cable providing a data communication path to a node connecting jack;

connecting one end of a patch cable to provide data communication for said node connecting jack;

operatively connecting said connected one end of a patch cable to said connected one of a cable; and

operatively connecting said detachably received current limited power to said connected one end of a cable thereby providing power to the node.

43. A method according to claim 42, further comprising indicating a status of said received current limited power signal.

44. A method according to claim 43, wherein said status is at least one of power supplied towards said node connecting jack, no power supplied towards said node connecting jack, an overload condition and a short circuit condition.

45. A method according to claim 42, further comprising signaling to a source of said received current limited power a type indication.

46. A method according to claim 45, further comprising:

providing a source of said received current limited power; and

operating said provided source responsive to said signaled type indication.

47. A method of flexibly providing power in a structured cabling system, the method comprising:

providing a source of a plurality of current limited power signals;

providing a power ready patch panel, said power ready patch panel providing detachable connections for said plurality of current limited power signals, said power ready patch panel further exhibiting a plurality of ports for connecting a node connecting cable and a plurality of ports for connecting a patch cable, each of said plurality of ports for connecting a patch cable being operatively connected via pairs of conductors to a unique one of said plurality of ports, each of said detachable connections being operatively connected to inject said detachably connected current limited power signal to at least one of said pairs of conductors;

connecting each of said plurality of ports of said provided power ready patch panel to a unique node connecting jack;

connecting each of said plurality of ports for connecting a cable to a data communication path thereby providing data communication for a node connected to said node connecting jack; and

detachably connecting said providing plurality of current limited power signals to said detachable connection, thereby providing power to the node connected to said node connecting jack without affecting data communication.