RF-ID for cable management and port identification

• US 6,968,994 B1
• Filed: 07/06/2004
• Issued: 11/29/2005
• Est. Priority Date: 07/06/2004
• Status: Active Grant

• Current Assignee: Ciena Corporation
• Original Assignee: Nortel Networks Limited (Nortel Networks Corporation)
• Inventors: Ashwood Smith, Peter
• Primary Examiner(s): Frech, Karl D.
• Assistant Examiner(s): WALSH, DANIEL I
• Application Number:
  US10/885,273
• Time in Patent Office: 511 Days
• Field of Search: 385/100, 385/101, 385/24, 235/375, 235/492, 235/449, 235/451, 235/435, 235/472, 235/472.02, 235/383, 705/28, 705/16, 705/22, 340/572.1, 340/825.49, 340/572.8, 398/58, 359/118, 355/200.5
• US Class Current: 235/375
• CPC Class Codes: G01R 31/60 Identification of wires in a multicore cable
• CPC Class Codes: G01S 13/751 wherein the responder or reflector radiates a coded signal
• CPC Class Codes: H04Q 1/149 Wireguides in connector blocks

Abstract

A Radio Frequency Identification (“RF-ID”) device is affixed to a cable to identify the cable, i.e., distinguish the cable from other cables. A handheld RF-ID reader is used to identify particular cables by detecting the RF-ID associated with the cable. Short range RF-ID readers are embedded in a network device proximate to ports to determine which cable is connected with which port. A configurable cross-connect between the port and internal circuitry is configured based on the detected RF-ID to make predetermined interconnections. Consequently, proper interconnections may be achieved by connecting the cabling with any of a plurality of ports.

Claims

1. Apparatus for detecting identification information associated with a network communications cable having a Radio Frequency Identification (“

RF-ID”

) tag, the RF-ID tag having stored therein the identification information, and for employing that information, comprising;

a network device having;

an embedded reader operable to generate a signal for which the RF-ID tag is operative in response to transmit the identification information, the reader being further operative to receive the identification information; and

a processor operable to employ the received identification information to configure the network device.

2. The apparatus of claim 1 wherein the reader includes a display for displaying the identification information.

3. The apparatus of claim 1 wherein the reader is operative to generate the signal at one of a plurality of selectable frequencies.

4. The apparatus of claim 1 wherein the reader is operative to generate the signal at one of a plurality of selectable power levels.

5. The apparatus of claim 1 wherein the reader is operative to generate the signal with a selected one of a plurality of keying codes embedded therein, the RF-ID tag being operative in response to selected ones of the keying codes.

6. The apparatus of claim 1 wherein the cable includes, at least at one end, a connector and the RF-ID tag is embedded in the connector.

7. The apparatus of claim 1 wherein the RF-ID tag is affixable to an existing cable.

8. The apparatus of claim 1 wherein the RF-ID tag is operative in response to the reader signal to prompt a response selected from the group consisting of:

optical response and audible response.

9. The apparatus of claim 1 wherein the RF-ID tag includes an interface for manually setting the identification information.

10. The apparatus of claim 1 wherein the reader is embedded in the network device proximate to an external port such that the reader receives the identification information when the cable is connected to the port.

11. The apparatus of claim 1 further including a table which cross-references identification information with internal ports and a configurable interconnect disposed between the external ports and the internal ports, whereby the received identification information is employed to determine configuration of the interconnect in order to achieve predetermined interconnection between the cable and one of the internal ports.

12. The apparatus of claim 1 wherein properties of the cable are embedded in the RF-ID tag information for use by an attached device.

13. The apparatus of claim 12 wherein the information includes an indication of optical fiber type for selection of laser properties.

14. A method for detecting identification information associated with a network communications cable by a Radio Frequency Identification (“

RF-ID”

) tag having stored therein the identification information, and for employing that information, comprising the steps of;

employing a reader to generate a signal for which the RF-ID tag is operative in response to transmit the identification information, the reader being further operative to receive the identification information, and wherein the reader is embedded in a network device;

receiving, by the reader, the identification information; and

employing the received identification information to configure the network device.

15. The method of claim 14 including the further step of displaying the identification information on the reader.

16. The method of claim 14 including the further step of generating, with the reader, the signal at one of a plurality of selectable frequencies.

17. The method of claim 14 including the further step of generating, with the reader, the signal at one of a plurality of selectable power levels.

18. The method of claim 14 including the further step of generating, with the reader, the signal with a selected one of a plurality of keying codes embedded therein, the RF-ID tag being operative in response to selected ones of the keying codes.

19. The method of claim 14 wherein the cable includes, at least at one end, a connector and the RF-ID tag is embedded in the connector.

20. The method of claim 14 wherein the RF-ID tag is affixable to an existing cable.

21. The method of claim 14 including the further step of the RF-ID tag prompting, in response to the reader signal, a response selected from the group consisting of optical response and audible response.

22. The method of claim 14 wherein the RF-ID tag includes an interface for manually setting the identification information.

23. The method of claim 14 wherein the reader is embedded in the network device proximate to an external port and including the further step of receiving, by the reader, the identification information of the cable when the cable is connected to the port.

24. The method of claim 14 further including a table which cross-references identification information with internal ports and a configurable interconnect disposed between the external ports and the internal ports, and including the further step of employing the received identification to determine configuration of the interconnect in order to achieve predetermined interconnection between the cable and one of the internal ports.

25. The method of claim 14 including the further step of embedding in the RF-ID tag information an indication of properties of the cable for use by an attached device.

26. The method of claim 25 wherein the information includes an indication of optical fiber type for selection of laser properties.