TELECOMMUNICATIONS DEVICE

• US 20110318970A1
• Filed: 08/31/2011
• Published: 12/29/2011
• Est. Priority Date: 04/11/2006
• 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., Murray, David Patrick, George, Ian Robert
• Granted Patent: US 9,065,223 B2
• Time in Patent Office: Days
• US Class Current: 439/676
• CPC Class Codes: H01R 13/6461 Means for preventing cross-talk
• CPC Class Codes: H01R 13/6466 on substrates, e.g. printed circuit boards [PCB]
• CPC Class Codes: H01R 13/6658 on printed circuit board H01R13/6666 - H01R13/6691 take precedence
• CPC Class Codes: H01R 13/719 specially adapted for high frequency, e.g. with filters
• CPC Class Codes: H01R 2107/00 Four or more poles
• CPC Class Codes: H01R 24/64 for high frequency, e.g. RJ 45
• CPC Class Codes: H01R 4/2416 the contact members having insulation-cutting edges, e.g. of tuning fork type
• CPC Class Codes: H05K 1/0228 Compensation of cross-talk by a mutually correlated lay-out of printed circuit traces, e.g. for compensation of cross-talk in mounted connectors balanced signal pairs H05K1/0245
• CPC Class Codes: H05K 1/162 incorporating printed capacitors
• CPC Class Codes: H05K 2201/09236 Parallel layout layout of balanced signal pairs H05K1/0245; superposed layout H05K2201/09672
• CPC Class Codes: H05K 2201/09245 Crossing layout alternating conductors H05K2201/097
• CPC Class Codes: H05K 2201/09263 Meander
• CPC Class Codes: H05K 2201/10189 Non-printed connector
• CPC Class Codes: H05K 3/4644 by building the multilayer layer by layer, i.e. build-up multilayer circuits making via holes in the insulating layers H05K3/0011; special circuit boards as base or core whereon the multilayer is built H05K3/4602
• CPC Class Codes: Y10S 439/941 Crosstalk suppression
• CPC Class Codes: Y10T 29/49117 Conductor or circuit manufacturing
• CPC Class Codes: Y10T 29/49204 Contact or terminal manufacturing
• CPC Class Codes: Y10T 29/49222 forming array of contacts or terminals

Abstract

The present disclosure relates to a telecommunications jack including a housing having a port for receiving a plug. The jack also includes a plurality of contact springs adapted to make electrical contact with the plug when the plug is inserted into the port of the housing, and a plurality of wire termination contacts for terminating wires to the jack. The jack further includes a circuit board that electrically connects the contact springs to the wire termination contacts. The circuit board includes a multi-zone crosstalk compensation arrangement for reducing crosstalk at the jack.

Claims

1. A telecommunications device comprising:

a housing defining a port for receiving a plug;

a plurality of contact springs adapted to make electrical contact with the plug when the plug is inserted into the port of the housing;

a plurality of wire termination contacts for terminating wires to the device;

a circuit board that electrically connects the contact springs to the wire termination contacts, the circuit board including first and second conductive layers separated by a dielectric layer; and

the first and second conductive layers including a cross talk compensation arrangement including first and second capacitor plates for providing a capacitive coupling, the first and second capacitor plates opposing one another and being separated by the dielectric layer, the first capacitor plate being larger than the second capacitor plate.

2. The telecommunications device of claim 1, wherein the dielectric layer has a thickness less than 0.01 inches.

3. The telecommunications device of claim 1, wherein the dielectric layer has a thickness less than 0.0075 inches.

4. The telecommunications device of claim 1, wherein the dielectric layer has a thickness less than 0.005 inches.

5. The telecommunications device of claim 1, wherein the dielectric layer has a thickness less than 0.003 inches.

6. The telecommunications device of claim 1, wherein at least one of the capacitor plates has a trimmable stub.

7. The telecommunications device of claim 6, wherein the second capacitor plate has a trimmable stub.

8. The telecommunications device of claim 1, wherein the first capacitor plate extends beyond the second capacitor plate on all sides.

9. The telecommunications device of claim 8, wherein the first and second capacitor plates are rectangular.

10. The telecommunications device of claim 1, wherein the first and second capacitor plates are relatively sized to reduce registration requirements.

11. A telecommunications device adapted to receive a plug, the telecommunications device having a compensation arrangement that compensates for cross talk generated at the plug, the telecommunications device comprising:

a housing defining a port for receiving the plug;

first, second, third, fourth, fifth, sixth, seventh and eighth consecutively arranged contact springs adapted to make electrical contact with the plug when the plug is inserted into the port of the housing;

first, second, third, fourth, fifth, sixth, seventh and eighth wire termination contacts for terminating wires to the device;

a circuit board including first, second, third, fourth, fifth, sixth, seventh and eighth conductive paths that respectively electrically connect the first, second, third, fourth, fifth, sixth, seventh and eighth contact springs to the first, second, third, fourth, fifth, sixth, seventh and eighth wire termination contacts; and

first and second capacitor plates for providing a capacitive coupling between two of the conductive paths, the first and second capacitor plates opposing one another and being separated by a dielectric layer of the circuit board, the first capacitor plate being larger than the second capacitor plate.

12. The telecommunications device of claim 11, wherein the dielectric layer has a thickness less than 0.01 inches.

13. The telecommunications device of claim 11, wherein the dielectric layer has a thickness less than 0.0075 inches.

14. The telecommunications device of claim 11, wherein the dielectric layer has a thickness less than 0.005 inches.

15. The telecommunications device of claim 11, wherein the dielectric layer has a thickness less than 0.003 inches.

16. The telecommunications device of claim 11, wherein the first capacitor plate extends beyond the second capacitor plate on all sides.

17. The telecommunications device of claim 16, wherein the first and second capacitor plates are rectangular.

18. The telecommunications device of claim 11, wherein the first and second capacitor plates are relatively sized to reduce registration requirements.

19. The telecommunications device of claim 11, wherein the capacitive coupling is between the third and fifth conductive paths.

20. The telecommunications device of claim 11, wherein the capacitive coupling is between the fourth and sixth conductive paths.

21. The telecommunications device of claim 11, wherein the capacitive coupling is between the fifth and sixth conductive paths.

22. The telecommunications device of claim 11, wherein the capacitive coupling is between the first and third conductive paths.

23. The telecommunications device of claim 11, wherein the capacitive coupling is between the fourth and fifth conductive paths.

24. The telecommunications device of claim 11, wherein the capacitive coupling is between the third and sixth conductive paths.

25. A telecommunications device adapted to receive a plug, the telecommunications device having a compensation arrangement that compensates for cross talk generated at the plug, the telecommunications device comprising:

a housing defining a port for receiving the plug;

first, second, third, fourth, fifth, sixth, seventh and eighth consecutively arranged contact springs adapted to make electrical contact with the plug when the plug is inserted into the port of the housing;

first, second, third, fourth, fifth, sixth, seventh and eighth wire termination contacts for terminating wires to the device;

a circuit board including first, second, third, fourth, fifth, sixth, seventh and eighth conductive tracings that respectively electrically connect the first, second, third, fourth, fifth, sixth, seventh and eighth contact springs to the first, second, third, fourth, fifth, sixth, seventh and eighth wire termination contacts; and

a cross talk compensation arrangement including first and second rectangular capacitor plates for providing a capacitive coupling between two of the conductive tracings, the first and second rectangular capacitor plates opposing one another and being separated by a dielectric layer of the circuit board, the first rectangular capacitor plate being larger than the second rectangular capacitor plate so that portions of the first rectangular capacitor plate extend outwardly beyond boundaries of the second rectangular capacitor plate on all sides of the second rectangular capacitor plate.

26. A telecommunications device adapted to receive a plug, the telecommunications device having a compensation arrangement that compensates for cross talk generated at the plug, the telecommunications device comprising:

a housing defining a port for receiving the plug;

first, second, third, fourth, fifth, sixth, seventh and eighth consecutively arranged contact springs adapted to make electrical contact with the plug when the plug is inserted into the port of the housing;

first, second, third, fourth, fifth, sixth, seventh and eighth wire termination contacts for terminating wires to the device;

a circuit board including first, second, third, fourth, fifth, sixth, seventh and eighth conductive tracings that respectively electrically connect the first, second, third, fourth, fifth, sixth, seventh and eighth contact springs to the first, second, third, fourth, fifth, sixth, seventh and eighth wire termination contacts; and

a cross talk compensation arrangement including first and second capacitor plates for providing a capacitive coupling between two of the conductive tracings, the first and second capacitor plates opposing one another and being separated by a dielectric layer of the circuit board, the first capacitor plate being larger than the second capacitor plate, the second capacitor plate having an external boundary that is inwardly offset from an external boundary of the first capacitor plate such that the external boundary of the second capacitor plate is entirely inside the external boundary of the first capacitor plate from a plan view perspective of the circuit board.

27. A telecommunications device adapted to receive a plug, the telecommunications device having a compensation arrangement that compensates for cross talk generated at the plug, the telecommunications device comprising:

a housing defining a port for receiving the plug;

first, second, third, fourth, fifth, sixth, seventh and eighth consecutively arranged contact springs adapted to make electrical contact with the plug when the plug is inserted into the port of the housing;

first, second, third, fourth, fifth, sixth, seventh and eighth wire termination contacts for terminating wires to the device;

a circuit board including first, second, third, fourth, fifth, sixth, seventh and eighth conductive tracings that respectively electrically connect the first, second, third, fourth, fifth, sixth, seventh and eighth contact springs to the first, second, third, fourth, fifth, sixth, seventh and eighth wire termination contacts; and

a cross talk compensation arrangement including;

first and second capacitor plates for providing a first capacitive coupling of the cross talk compensation arrangement, the first capacitive coupling being between the third and fifth tracings, the first capacitor plate being larger than the second capacitor plate and an outer boundary of the second capacitor plate being entirely inside an outer boundary of the first capacitor plate;

third and fourth capacitor plates for providing a second capacitive coupling of the cross talk compensation arrangement, the second capacitive coupling being between the third and fifth tracings, the third capacitor plate being larger than the fourth capacitor plate and an outer boundary of the fourth capacitor plate being entirely inside an outer boundary of the third capacitor plate;

fifth and sixth capacitor plates for providing a third capacitive coupling of the cross talk compensation arrangement, the third capacitive coupling being between the fourth and sixth tracings, the fifth capacitor plate being larger than the sixth capacitor plate and an outer boundary of the sixth capacitor plate being entirely inside an outer boundary of the fifth capacitor plate; and

seventh and eighth capacitor plates for providing a fourth capacitive coupling of the cross talk compensation arrangement, the fourth capacitive coupling being between the fourth and sixth tracings, the seventh capacitor plate being larger than the eighth capacitor plate and an outer boundary of the eighth capacitor plate being entirely inside an outer boundary of the seventh capacitor plate.