Communications connector with improved contacts

• US 8,715,013 B2
• Filed: 07/13/2012
• Issued: 05/06/2014
• Est. Priority Date: 12/22/2003
• Status: Expired due to Fees

• Current Assignee: Panduit Corporation
• Original Assignee: Panduit Corporation
• Inventors: Caveney, Jack E., Lesniak, Scott M.
• Primary Examiner(s): HARVEY, JAMES R
• Application Number:
  US13/549,024
• Publication Number:
  US 20120282818A1
• Time in Patent Office: 662 Days
• Field of Search: 439/660, 439/676, 439/700, 439/733.1, 439/862, 439/941, 439/955
• US Class Current: 439/676
• CPC Class Codes: H01R 13/6466 on substrates, e.g. printed circuit boards [PCB]
• CPC Class Codes: H01R 13/6469 on substrates
• CPC Class Codes: H01R 13/665 with built-in electronic circuit H01R13/70, H01R13/719 take precedence
• CPC Class Codes: H01R 13/6658 on printed circuit board H01R13/6666 - H01R13/6691 take precedence
• 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: H01R 4/2433 one part of the base being movable to push the cable into the slot
• 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 1/165 incorporating printed inductors
• CPC Class Codes: H05K 2201/09236 Parallel layout layout of balanced signal pairs H05K1/0245; superposed layout H05K2201/09672
• CPC Class Codes: H05K 2201/09672 Superposed layout, i.e. in different planes parallel traces in one plane H05K2201/09236
• CPC Class Codes: H05K 2201/10189 Non-printed connector
• CPC Class Codes: Y10S 439/941 Crosstalk suppression
• CPC Class Codes: Y10S 439/942 Comblike retainer for conductor
• CPC Class Codes: Y10T 29/49201 with overlapping orienting
• CPC Class Codes: Y10T 29/49202 including oppositely facing end orienting
• CPC Class Codes: Y10T 29/49204 Contact or terminal manufacturing
• CPC Class Codes: Y10T 29/49208 by assembling plural parts

Abstract

A network cable jack includes a printed circuit board (PCB) for balancing both inductive and capacitive coupling. Using a PCB allows compact trace paths to be formed without significantly increasing manufacturing costs. By including on each trace path two distinct inductance zones separated by a neutral zone, significant gains in degrees of freedom are achieved for designing PCB trace patterns in which a pair of inductive coupling zones jointly offset the inductive coupling caused by a specification plug and the jack contacts, both in magnitude and phase angle. Further, using distinct inductance zones offers more freedom regarding the placement of capacitive plates for use in capacitance balancing as well as the placement of terminals and insulation displacement contacts. Although the magnitude of a capacitive coupling is determined by the length of the capacitor plates parallel to current carrying traces, the approach allows capacitive and inductive coupling to be balanced independently.

Claims

1. A communications connector comprising:

a housing, the housing having an opening; and

a plurality of electrical contacts wherein at least one contact of the plurality of electrical contacts has a portion that forms a safety pin loop wherein the plurality of electrical contacts comprises eight contacts generally aligned in a single row such that the contacts can be sequentially numbered from 1 to 8 starting at a first end and ending at an opposite end and further wherein the first and the eighth contacts of the plurality of electrical contacts have the safety pin loop.

2. The communications connector of claim 1 wherein the at least one contact contacts itself at a point in the loop where the at least one contact is adjacent to itself.

3. The connector of claim 2 further comprising a contact holder, the contact holder configured to retain the portion of the at least one contact that forms the safety pin loop.