Crosstalk reducing conductor and contact configuration in a communication system

• US 8,477,928 B2
• Filed: 11/17/2005
• Issued: 07/02/2013
• Est. Priority Date: 11/17/2004
• Status: Active Grant

• Current Assignee: Belden Canada ULC (Belden Inc.)
• Original Assignee: Belden CDT (Canada) Inc. (Belden Inc.)
• Inventors: Pelletier, Antoine, Milette, Luc, Bohbot, Michel, Vexler, Gavriel
• Primary Examiner(s): Jamal, Alexander
• Application Number:
  US11/719,464
• Publication Number:
  US 20090225979A1
• Time in Patent Office: 2,784 Days
• Field of Search: 379/413.04, 379/417, 439/404
• US Class Current: 379/413.04
• CPC Class Codes: H01R 13/6461 Means for preventing cross-talk
• CPC Class Codes: H01R 13/6473 Impedance matching
• CPC Class Codes: H01R 13/6477 by variation of dielectric properties
• CPC Class Codes: H01R 4/2416 the contact members having insulation-cutting edges, e.g. of tuning fork type
• CPC Class Codes: H01R 4/242 the contact members being plates having a single slot
• CPC Class Codes: H04M 3/18 with means for reducing interference or noise; with means for reducing effects due to line faults with means for protecting lines

Abstract

There is disclosed conductor and connector configurations for use in communications systems which take advantage of the orientation and positioning of adjacent balanced pairs of conductors to reduce cross talk. These conductor and connector configurations may be used to reduce cross talk between adjacent balanced pairs of a single transmission path, or to reduce alien cross talk between adjacent balanced pairs located in different transmission paths.

Claims

1. An assembly for terminating first and second cables in a telecommunications system, each of the cables comprising first and second conductors, the assembly comprising:

a first contact interconnected with the first conductor of the first cable, wherein said first contact emits a first signal;

a pair of contacts interconnected with a respective one of the first and second conductors of the second cable; and

a pair of sockets each configured to receive an RJ-45 cable plug, each of said sockets comprising a plurality of connector blades disposed therein and wherein a first of said connector blades disposed in a first of said pair of sockets is interconnected with said first contact and each of a pair of said connector blades disposed in a second of said pair of sockets is interconnected with a respective one of said pair of contacts;

wherein said first contact is positioned relative to said pair of contacts such that an amplitude of said first signal received at one of said pair of contacts is substantially the same as an amplitude of said first signal received at another of said pair of contacts.

2. The assembly of claim 1, further comprising a second contact interconnected with the second conductor of the first cable and a second of said connector blades disposed in said first socket, wherein said second contact emits a second signal, and wherein said second contact is positioned relative to said pair of contacts such that an amplitude of said second signal received at one of said pair of contacts is substantially the same as an amplitude of said second signal received at another of said pair of contacts.

3. The assembly of claim 2, wherein said first and second contacts are elongate and each comprise a substantially flat long surface and wherein said long surface of said first contact is in parallel with said long surface of said second contact.

4. The assembly of claim 3, wherein said flat long surface of said first contact is arranged opposite said flat long surface of said second contact.

5. The assembly of claim 3, wherein said pair of contacts are substantially flat and further wherein said long surface of said first contact and said long surface of said second contact are at right angles to a long surface of either of said pair of contacts.

6. The assembly of claim 1, further comprising a patch panel and wherein said first contact is disposed on a first surface of a first modular connector, said first socket molded in a second surface of said first modular connector, said pair of contacts are disposed on a first surface of a second modular connector and said second socket molded in a second surface of said first modular connector, said connectors adapted for insertion into the patch panel.

7. The assembly of claim 6, wherein said connectors are arranged side by side in said patch panel.

8. The assembly of claim 6, wherein said connectors are arranged one on top of another in said patch panel.

9. The assembly of claim 6, wherein said first and second modular connectors are modular jacks.

10. The assembly of claim 6, wherein each of the cables comprises four twisted pairs of conductors and wherein each of said sockets comprises eight blades disposed therein.

11. The assembly of claim 1, wherein said pair of contacts are positioned symmetrically about said first contact.

12. The assembly of claim 1, wherein said contacts are elongate and each comprise a substantially flat long surface and wherein a flat long surface of said first contact is at right angles to a flat long surface of each of said pair of contacts.

13. The assembly of claim 12, wherein said flat pair of contacts are arranged in parallel.

14. The assembly of claim 12, wherein said flat pair of contacts lie in the same plane.

15. The assembly of claim 12, wherein said flat contacts are IDCs.

16. An assembly for terminating first and second cables in a telecommunications system, each of the cables comprising a pair of conductors, the assembly comprising:

a pair of contacts interconnected with the pair of conductors of the first cable, wherein one of said pair of contacts emits a first signal which is substantially an inverse of a second signal emitted by another of said pair of contacts;

a first contact interconnected with a first conductor of the pair of conductors of the second cable; and

first and second sockets each configured to receive an RJ-45 cable plug, each of said sockets comprising a plurality of connector blades disposed therein and wherein one of said connector blades disposed in said first socket is interconnected with said first contact and each of a pair of said connector blades disposed in said second socket is interconnected with a respective one of said pair of contacts;

wherein said pair of contacts is positioned relative to said first contact such that an amplitude of said first signal received by said first contact is substantially opposite to an amplitude of said second signal received by said first contact.

17. The assembly of claim 16, further comprising a second contact interconnected with a second conductor of the pair of conductors of the second cable and a second of said connector blades disposed in said first socket and wherein said pair of contacts is positioned relative to said second contact such that an amplitude of said first signal received by said second contact is substantially opposite to an amplitude of said second signal received by said second contact.

18. The assembly of claim 17, wherein said first and second contacts are elongate and each comprise a substantially flat long surface and wherein said long surface of said first contact is in parallel with said long surface of said second contact.

19. The assembly of claim 18, wherein said long surface of said first contact and said long surface of said second contact lie in the same plane.

20. The assembly of claim 18, wherein said pair of contacts are substantially flat and further wherein said long surface of said first contact and said long surface of said second contact are at right angles to a long surface of either of said pair of contacts.

21. An assembly for terminating first and second cables in a telecommunications system, each of the cables comprising a pair of conductors, the assembly comprising:

a first substantially flat contact interconnected with one of the pair of conductors of the first cable;

a second substantially flat contact interconnected with one of the pair of conductors of the second cable, wherein said first contact is arranged at right angles to said second contact; and

first and second sockets each configured to receive an RJ-45 cable plug, each of said sockets comprising a plurality of connector blades disposed therein and wherein one of said connector blades disposed in said first socket is interconnected with said first substantially flat contact and a second one of said connector blades disposed in said second socket is interconnected with said second substantially flat contact.

22. An assembly for terminating first and second cables in a telecommunications system, each of the cables comprising a pair of conductors, the assembly comprising:

a first contact interconnected with one of the pair of conductors of the first cable;

a pair of contacts interconnected with a respective one of the pair of conductors of the second cable, said pair of contacts positioned symmetrically about said first contact; and

first and second sockets each configured to receive an RJ-45 cable plug, each of said sockets comprising a plurality of connector blades disposed therein, wherein one of said connector blades disposed in said first socket is interconnected with said first contact and each of a pair of said connector blades disposed in said second socket is interconnected with a respective one of said pair of contacts.

23. The assembly of claim 22, wherein said first contact and said pair of contacts are elongate and each comprise a substantially flat long surface, wherein said pair of contacts are in parallel and wherein said long surface of said first contact is perpendicular to said long surface of each of said pair of contacts.

24. The assembly of claim 23, wherein said flat pair of contacts are aligned side by side.

25. The assembly of claim 23, wherein said flat pair of contacts are positioned facing one another.

26. The assembly of claim 23, wherein said contacts are IDCs.

27. A connector for terminating a cable comprising first and second pairs of conductors, the connector comprising:

a first substantially flat contact interconnected with a conductor of the first pair of conductors; and

a pair of substantially flat contacts interconnected with a respective one of the second pair of conductors; and

a socket configured to receive an RJ-45 cable plug, said socket comprising a plurality of connector blades disposed therein and wherein one of said connector blades is interconnected with said first substantially flat contact and each of a second and third of said connector blades is interconnected with a respective one of said pair of substantially flat contacts;

wherein said pair of contacts are positioned symmetrically about said first contact, said first contact and said pair of contacts are arranged in parallel and a flat surface of said first contact is perpendicular to a flat surface of each of said pair of contacts.

28. The connector of claim 27, wherein said flat pair of contacts are aligned side by side.

29. The connector of claim 27, wherein said flat pair of contacts are positioned facing one another.

30. The connector of claim 27, wherein said flat contacts are IDCs.

31. The connector of claim 27, wherein said contacts are disposed on a first surface of the connector and said socket is molded in a second surface thereof.

32. The connector of claim 31, wherein the connector is modular and adapted for insertion into a patch panel.

33. The connector of claim 31, wherein the cable comprises four twisted pairs of conductors and wherein said socket comprises eight blades disposed therein.

34. A connector for terminating a cable comprising first and second pairs of conductors, the connector comprising:

a first substantially flat contact interconnected with a conductor of the first pair of conductors;

a second substantially flat contact interconnected with a first conductor of the second pair of conductors, said first flat contact substantially at right angles to said second flat contact; and

a socket configured to receive an RJ-45 cable plug, said socket comprising a plurality of connector blades disposed therein and wherein a first of said connector blades is interconnected with said first substantially flat contact and a second of said connector blades is interconnected with a said second substantially flat contact.

35. The connector of 34, further comprising a third substantially flat contact aligned with said second flat contact, said third flat contact interconnected with a second conductor of the second pair of conductors and a third of said connector blades and wherein said second and third contacts are arranged symmetrically about said first contact.