Methods and systems for minimizing alien crosstalk between connectors

• US 7,771,230 B2
• Filed: 11/08/2007
• Issued: 08/10/2010
• Est. Priority Date: 01/06/2006
• Status: Active Grant

• Current Assignee: CommScope Technologies, LLC (CommScope Holding Company, Inc.)
• Original Assignee: ADC Telecommunications Incorporated (TE Connectivity Limited)
• Inventors: Hammond, Bernard Harold Jr., DeBenedictis, Damon F.
• Primary Examiner(s): Ta; Tho D
• Assistant Examiner(s): CHAMBERS, TRAVIS SLOAN
• Application Number:
  US11/983,812
• Publication Number:
  US 20080299821A1
• Time in Patent Office: 1,006 Days
• Field of Search: 439/541.5, 439/676, 439/607, 439/941, 439/607.02
• US Class Current: 439/541.5
• CPC Class Codes: H01R 13/518 for holding or embracing several coupling parts, e.g. frames
• CPC Class Codes: H01R 13/6471 by special arrangement of ground and signal conductors, e.g. GSGS [Ground-Signal-Ground-Signal]
• CPC Class Codes: H01R 13/659 with plural ports for distinct connectors
• CPC Class Codes: H01R 13/6598 Shield material

Abstract

A telecommunications device comprising a faceplate including at least two adjacent jack receptacles, the two adjacent jack receptacles positioned vertically and horizontally offset to each other and a jack mounted in at least one of the two jack receptacles, the jack defining a port in the front end for receiving a plug, the jack also defining spring contacts within the port for making electrical contact with the plug, the jack including insulation displacement contacts electrically connected to the spring contacts, the insulation displacement contacts configured to establish electrical contact with conductors of a cable. A cap manufactured of a material configured to minimize transmission of electrical signal away from its intended path fits about the jack to cover at least a portion of the outer surface defined by the insulation displacement contacts.

Claims

1. A jack assembly comprising:

a first jack including a front end, a back end, a first outermost sidewall and an opposite second outermost sidewall, the first jack defining a port in the front end for receiving a plug, the first jack also defining spring contacts within the port for making electrical contact with the plug, the first jack including insulation displacement contacts projecting in a direction from the front end to the back end of the first jack, the insulation displacement contacts electrically connected to the spring contacts, the insulation displacement contacts configured to establish electrical contact with conductors of a cable, the insulation displacement contacts arranged in two columns that define a space thereinbetween for receiving the conductors of the cable, the insulation displacement contacts defining an outer surface;

a first cap manufactured of a material configured to minimize transmission of electrical signal away from its intended path, wherein the first cap includes an electrically non-conductive material which is impregnated with an electrically conductive material such that the first cap is overall electrically non-conductive, the first cap constructed to fit about the first jack to cover at least a portion of the outer surface defined by the insulation displacement contacts, the first cap including a back wall, a top wall, a bottom wall, a first sidewall, and a second sidewall, the backwall of the first cap defining an opening configured to generally align with the space defined between the two columns of insulation displacement contacts when the first cap is mounted on the first jack and receive the conductors of the cable, wherein the conductors of the cable enter the space through the opening and protrude laterally from the insulation displacement contacts toward the first and second outermost sidewalls of the first jack, at least one of the first sidewall and the second sidewall of the first cap including structure for defining an airspace for accommodating ends of the conductors of the cable protruding laterally from the insulation displacement contacts such that the conductors do not contact the first cap; and

an unshielded cable terminated to the first jack, wherein the electrically conductive material of the first cap is not grounded through the cable when the first cap is mounted on the first jack.

2. A jack assembly according to claim 1, wherein, once mounted thereon, the first sidewall of the first cap is configured to align flush with the first outermost sidewall of the first jack, the first sidewall of the first cap including a notch that, when mounted, defines the airspace for accommodating ends of the conductors of the cable protruding laterally from the insulation displacement contacts such that the conductors do not contact the first cap, the airspace defined between the first sidewall of the first cap and the first outermost sidewall of the first jack.

3. A jack assembly according to claim 1, wherein the second sidewall of the first cap extends laterally past the second outermost sidewall of the first jack.

4. A jack assembly according to claim 1, wherein the electrically conductive material impregnated into the electrically non-conductive material includes carbon.

5. A jack assembly according to claim 1, wherein the first jack is a recommended (RJ) type jack.

6. A jack assembly according to claim 1, further comprising a second jack adjacently positioned next to the first jack, the second jack including a second cap manufactured of a material configured to minimize transmission of electrical signal away from its intended path mounted thereon, the second cap including a first sidewall and a second sidewall, the second sidewall of the second cap including a recess that is positioned adjacent the first sidewall of the first cap, the recess on the second sidewall of the second cap defining a clearance space for accommodating ends of conductors of a cable protruding laterally from the insulation displacement contacts of the first jack.

7. A jack assembly according to claim 1, wherein the second sidewall of the first cap includes a recess defining the airspace for accommodating ends of the conductors of the cable protruding laterally from the insulation displacement contacts such that the conductors do not contact the first cap.

8. A jack assembly according to claim 7, wherein the second sidewall of the first cap includes an inner surface and an outer surface, the inner surface of the second sidewall including the recess defining the airspace for accommodating ends of the conductors of the cable protruding laterally from the insulation displacement contacts such that the conductors do not contact the first cap.

9. A jack assembly according to claim 8, wherein the first cap defines a recess on the inner surface and a recess on the outer surface of the second sidewall.

10. A jack assembly comprising:

a first jack including a front end, a back end, a first outermost sidewall and an opposite second outermost sidewall, the jack defining a port in the front end for receiving a plug, the jack also defining spring contacts within the port for making electrical contact with the plug, the jack including insulation displacement contacts projecting in a direction from the front end to the back end of the jack, the insulation displacement contacts electrically connected to the spring contacts, the insulation displacement contacts configured to establish electrical contact with conductors of a cable, the insulation displacement contacts arranged in two columns that define a space thereinbetween for receiving the conductors of the cable, the insulation displacement contacts defining an outer surface;

a first cap manufactured of a material configured to minimize transmission of electrical signal away from its intended path, the first cap constructed to fit about the first jack to cover at least a portion of the outer surface defined by the insulation displacement contacts, the first cap including a back wall, a top wall, a bottom wall, a first sidewall, and a second sidewall, wherein, once the first cap is mounted on the first jack, the first sidewall and the second sidewall of the first cap are positioned adjacent the insulation displacement contacts and each cover at least a portion of the outer surface defined by the insulation displacement contacts, wherein the first sidewall extends a different length than the second sidewall from the back wall of the first cap; and

an unshielded cable terminated to the first jack, wherein the electrically conductive material of the first cap is not grounded through the cable when the first cap is mounted on the first jack.

11. A jack assembly according to claim 10, wherein the second sidewall of the first cap extends further along the insulation displacement contacts than the first sidewall of the first cap from the back wall of the first cap.

12. A jack assembly according to claim 10, wherein the first sidewall of the first cap is configured to align flush with the first outermost sidewall of the first jack, the first sidewall of the first cap including a notch that, when mounted, defines an airspace between the first sidewall of the first cap and the first outermost sidewall of the first jack.

13. A jack assembly according to claim 10, wherein the first cap defines an inner surface of the second sidewall and an outer surface of the second sidewall, wherein the first cap includes a recess on the inner surface of the second sidewall defining a clearance space for accommodating ends of conductors of a cable protruding laterally from the insulation displacement contacts and a recess on the outer surface of the second sidewall.

14. A jack assembly according to claim 10, wherein the second sidewall of the first cap extends laterally past the second outermost sidewall of the first jack.

15. A jack assembly according to claim 10, wherein the first jack is a recommended (RJ) type jack.

16. A jack assembly according to claim 10, wherein the first cap defines an opening in the back wall of the first cap generally aligned with the space defined in between the two columns of the insulation displacement contacts.

17. A jack assembly according to claim 10, further comprising a second jack adjacently positioned next to the first jack, the second jack including a second cap manufactured of a material configured to minimize transmission of electrical signal away from its intended path mounted thereon, the second cap including a first sidewall and a second sidewall, the second sidewall of the second cap including a recess that is positioned adjacent the first sidewall of the first cap, the recess on the second sidewall of the second cap defining a clearance space for accommodating the ends of conductors of the cable protruding laterally from the insulation displacement contacts of the first jack.

18. A jack assembly according to claim 10, wherein the first cap includes an electrically non-conductive material which is impregnated with an electrically conductive material such that the first cap is overall electrically non-conductive.

19. A jack assembly according to claim 18, wherein the electrically conductive material impregnated into the electrically non-conductive material includes carbon.