Electrical connector
View Patent ↗An electrical connector for transmitting data signals between the insulated conductors of a first data cable and corresponding insulated conductors of a second data cable, including a first part having a socket shaped to at least partially receive a plug of said first data cable; a second part having a plurality of insulation displacement contact slots shaped to receive end sections of the conductors of the second data cable; a plurality of electrically conductive contacts including resiliently compressible spring finger contacts extending into the socket for electrical connection with corresponding conductors of the first cable; insulation displacement contacts seated in corresponding insulation displacement contact slots for effecting electrical connection with corresponding conductors of the second data cable; and mid sections extending therebetween; and a plurality of capacitive plates coupled to a common point on respective ones of said mid sections of the contacts by electrically conductive stems, wherein mid sections of the contacts generally lie in a common plane and are arranged to induce or restrict capacitive coupling between adjacent contacts.
1. An electrical connector for transmitting data signals between the insulated conductors of a first data cable and corresponding insulated conductors of a second data cable, comprising:
(a) a housing comprising:
(i) a first part having a socket shaped to at least partially receive a plug of said first data cable; and
(ii) a second part having a plurality of insulation displacement contact slots shaped to receive end sections of the conductors of the second data cable;
(b) a plurality of electrically conductive contacts including:
(i) resiliently compressible spring finger contacts extending into the socket for electrical connection with corresponding conductors of the first cable;
(ii) insulation displacement contacts extending from one end of the resiliently finger contacts and being seated in corresponding insulation displacement contact slots for effecting electrical connection with corresponding conductors of the second data cable; and
(iii) mid sections extending therebetween; and
(c) a plurality of capacitive plates aligned and extending from a common point on respective ones of said mid sections of the contacts by electrically conductive stems, wherein mid sections of the contacts generally lie in a common plane and the contacts including lugs and elbows bearing against the housing, thereby inhibiting movement of the mid sections to induce or restrict capacitive coupling between adjacent contacts.
2. The electrical connector claimed in claim 1 , wherein one or more of the spring finger contacts have end sections having a first cross-sectional area, and one or more of the spring finger contacts have end sections having a second cross-sectional area that is less than that the first cross-sectional area.
3. The electrical connector claimed claim 2 , wherein the smaller cross-sectional area between end sections of adjacent contacts reduces capacitive coupling.
4. The electrical connector claimed in claim 2 , wherein said end sections extend between points of contact with corresponding conductors of the first data cable and terminal ends of the contacts.
5. The electrical connector claimed in claim 2 , wherein end sections of the third, fourth, fifth and sixth contacts (as named in the T568A wiring standard) have the second cross-sectional area.
6. The electrical connector claimed in claim 2 , wherein end sections of the first, second, seventh and eighth contacts (as named in the T568A wiring standard) have the first cross-sectional area.
7. The electrical connector claimed in claim 2 , wherein said first cross-sectional area is substantially 0.25 mm 2 .
8. The electrical connector claimed in claim 2 , wherein said second cross-sectional area is substantially 0.20 mm 2 .
9. The electrical connector claimed in claim 1 , wherein first and second spring finger contacts (as defined in the T568A wiring standard) cross over one another after a point of contact with corresponding conductors of the first data cable to induce opposite coupling.
10. The electrical connector claimed in claim 1 , wherein four and five spring finger contacts (as defined in the T568A wiring standard) cross over one another after a point of contact with corresponding conductors of the first data cable to induce opposite coupling.
11. The electrical connector claimed in claim 1 , wherein seventh and eighth second spring finger contacts (as defined in the T568A wiring standard) cross over one another after a point of contact with corresponding conductors of the first data cable to induce opposite coupling.
12. The electrical connector claimed in claim 1 , wherein dielectric material extending at least partially between the capacitive plates induces a predetermined amount of capacitive coupling between adjacent contacts in the connector.
13. The electrical connector claimed in claim 12 , wherein said predetermined amount of capacitive coupling compensates for capacitive coupling in said plug of the first cable.
14. The electrical connector claimed in claim 13 , wherein said predetermined amount of capacitive coupling compensates for capacitive coupling in said plug of the first cable and capacitive coupling in the in the contacts of the connector.
15. The electrical connector claimed in claim 12 , wherein the relative capacitance between the capacitive plates coupled to first and second contacts (as per the T568A wiring standard) is substantially 22.85 picofarads.
16. The electrical connector claimed in claim 12 , wherein the relative capacitance between the capacitive plates coupled to first and third contacts (as per the T568A wiring standard) is substantially 15.12 picofarads.
17. The electrical connector claimed in claim 12 , wherein the relative capacitance between the capacitive plates coupled to third and fifth contacts (as per the T568A wiring standard) is substantially 48.72 picofarads.
18. The electrical connector claimed in claim 12 , wherein the relative capacitance between the capacitive plates coupled to fifth and fourth contacts (as per the T568A wiring standard) is substantially 46.83 picofarads.
19. The electrical connector claimed in claim 12 , wherein the relative capacitance between the capacitive plates coupled to fourth and sixth contacts (as per the T568A wiring standard) is substantially 48.72 picofarads.
20. The electrical connector claimed in claim 12 , wherein the relative capacitance between the capacitive plates coupled to sixth and eighth contacts (as per the T568A wiring standard) is substantially 35.61 picofarads.
21. The electrical connector claimed in claim 12 , wherein the relative capacitance between the capacitive plates coupled to eighth and seventh contacts (as per the T568A wiring standard) is substantially 39.59 picofarads.
22. The electrical connector claimed in claim 1 , wherein the mid section of the second contact (as per the T568A wiring standard) is routed away from the other contacts towards a corresponding insulation displacement contact slot.
23. The electrical connector claimed in claim 1 , wherein the mid section of the seventh contact (as per the T568A wiring standard) is routed away from the other contacts towards a corresponding insulation displacement contact slot.
24. The electrical connector claimed in claim 1 , wherein the mid section of the eighth contact (as per the T568A wiring standard) is routed away from the other contacts towards a corresponding insulation displacement contact slot.
25. The electrical connector claimed in claim 1 , wherein the mid section of the third contact (as per the T568A wiring standard) is routed away from the other contacts towards a corresponding insulation displacement contact slot and crosses the fifth, fourth and sixth contacts (as per the T568A wiring standard).
26. The electrical connector claimed in claim 1 , wherein a first part of the mid section of the fourth contact (as per the T568A wiring standard) is stepped towards a first part of the mid section of the fifth contact (as per the T568A wiring standard).
27. The electrical connector claimed in claim 26 , wherein a second part of the mid section of the fourth contact (as per the T568A wiring standard) crosses the fifth contact (as per the T568A wiring standard) and is then routed away from the other contacts towards a corresponding insulation displacement contact slot.
28. The electrical connector claimed in claim 26 , wherein a first part of the mid section of the first contact (as per the T568A wiring standard) is stepped towards the first part of the fifth contact (as per the T568A wiring standard) and is then routed away from the other contacts towards a corresponding insulation displacement contact slot.
29. The electrical connector claimed in claim 26 , wherein a second part of the part of the mid section of the fifth contact (as per the T568A wiring standard) is stepped towards the sixth contact (as per the T568A wiring standard) and then is then routed away from the other contacts towards a corresponding insulation displacement contact slot.
30. The electrical connector claimed in claim 29 , wherein the mid section of the sixth contact (as per the T568A wiring standard) is then routed towards a corresponding insulation displacement contact slot.
31. The electrical connector claimed in claim 1 , wherein the insulation displacement contact slots are arranged so that adjacent pairs of insulation displacement contacts open in different directions.
32. The electrical connector claimed in claim 31 , wherein the insulation displacement contact slots are arranged so that pairs of insulation displacement contacts open in common directions.
33. The electrical connector claimed in claim 31 , wherein the insulation displacement contact slots are arranged so that the corresponding insulation displacement contacts engage end sections of the conductors of the second data cable at an angle of forty five degrees to the direction of extent of said end sections.
34. The electrical connector claimed in claim 31 , wherein the insulation displacement contacts of contacts one and two (as described by the T568A wiring standard) open in a common direction substantially ninety degrees to a common direction in which the insulation displacement contacts of contacts four and five (as described by the T568A wiring standard) open.