Communication connector to optimize crosstalk

• US 20070105426A1
• Filed: 11/13/2006
• Published: 05/10/2007
• Est. Priority Date: 01/09/2004
• Status: Active Grant

• Current Assignee: Jeffrey Poulsen, Nathaniel Herring, Rance Rust, Rehan Mahmood, Shadi Abughazaleh
• Original Assignee: Jeffrey Poulsen, Nathaniel Herring, Rance Rust, Rehan Mahmood, Shadi Abughazaleh
• Inventors: Herring, Nathaniel, Mahmood, Rehan, Poulsen, Jeffrey, Rust, Rance, AbuGhazaleh, Shadi
• Granted Patent: US 7,294,012 B2
• Time in Patent Office: Days
• US Class Current: 439/344
• CPC Class Codes: H01R 13/6463 using twisted pairs of wires
• CPC Class Codes: H01R 13/6464 by adding capacitive elements
• CPC Class Codes: H01R 13/6477 by variation of dielectric properties
• CPC Class Codes: H01R 24/64 for high frequency, e.g. RJ 45

Abstract

A connector for a communications system provides desired levels of crosstalk by controlling the positions and lengths of the wires. The connector has an internal chamber opening on the rear end of the plug housing and defined by housing walls. A plurality of slots extend through one of the housing walls adjacent its front end and into the internal chamber. A plurality of insulation displacement contacts are mounted in the slots for movement between retracted positions and inserted positions extending into the internal chamber. A first insert is disposed in the internal chamber. The first insert has a front end proximal the front end of the plug housing. A first passageway extends from the front end of the first insert to the rear end of the first insert. A plurality of openings in a first insert wall adjacent the front end are aligned with the plurality of slots in the plug housing and extend into the first passageway. A second insert is partially disposed in the internal chamber and has a front end proximal the first insert rear end. The second insert has first, second, third and fourth channels extending from the rear end to the front end of the second insert. Four pairs of wires extend from a cable sheath. Each pair of wires pass through one of the first, second, third and fourth channels of the second insert and through the first passageway to the insulation displacement contacts in the internal chamber.

Claims

1. A method of assembling a plug for a communications systems, comprising the steps of

controlling two of four pairs of twisted wires extending from a cable sheath by selecting a degree of twist ranging from untwisted to fully twisted;

passing each pair of the two pairs of twisted wires and the two pairs of controlled wires through a channel in a second insert;

untwisting any twisted wires to form four pairs of untwisted wires;

passing each untwisted wire through a trough in a passageway of a first insert;

inserting the first insert into an internal chamber of a plug housing;

aligning openings in the first insert with slots in the plug housing; and

engaging an insulation displacement contact with each wire by inserting the insulation displacement contact through one of the slots in the plug housing and the aligned opening in the first insert.

2. A method of assembling a plug for a communications systems according to claim 1, wherein

passing each pair of the two pairs of twisted wires and the two pairs of controlled wires through a channel in a second insert comprises passing the two pairs of controlled wires through inner channels and passing the two pairs of twisted wires through outer channels.

3. A method of assembling a plug for a communications systems according to claim 1, wherein

passing each wire through a trough in a passageway of a first insert comprises passing each wire through the trough so that the wires are substantially axially arranged.

4. A method of assembling a plug for a communications systems according to claim 1, further comprising

inserting a third insert in the cable sheath to separate an internal passageway of the cable sheath into four sections;

and

running each pair of the four twisted pairs of wires through one of the four sections within the cable sheath.

5. A method of assembling a plug for a communications systems according to claim 1, further comprising

abutting a rear end of the second insert with the cable sheath.

6. A method of assembling a plug for a communications systems according to claim 1, further comprising

substantially abutting a rear end of said first insert with a front end of said second insert.