Patents Assigned to Nordx/CDT, Inc.
-
Patent number: 7150657Abstract: A method for terminating a telecommunications cable where the cable comprises a plurality of twisted pairs of wires. The method comprises the steps providing an interconnection module comprising a pair of contacts for each of the twisted pairs, aligning the end portions and interconnecting each of the aligned end portions with a corresponding pair of conductive contacts. The aligning step comprises arranging the end portions such that when connected to the contact pairs, the twisted pairs remain uncrossed. A wire lead guide for isolating the end portions of a plurality twisted pairs of wires an a connector assembly using the same. The guide comprises a guide body and a plurality of non-intersecting passageways through the body. Each of the passageways is comprised of an entrance and an exit. The end portions of one of the twisted pairs are inserted through a corresponding one of the passageways. The passageways isolate the twisted pairs of wires from one another.Type: GrantFiled: May 24, 2004Date of Patent: December 19, 2006Assignee: NORDX/CDT Inc.Inventors: Alain Quenneville, Michel Bohbot, Antoine Tazbaz
-
Publication number: 20060113106Abstract: An insulated wire for use in a communications cable, the wire comprising a conductor, at least one inner insulating layer surrounding the conductor, and an outer layer surrounding the insulating layers. At least one of the inner layers is a nano-composite comprising nano-sized platelets and a flame and smoke retardant additive package dispersed in a polyolefin matrix. The outer layer is substantially resistant to flame spread and smoke evolution, substantially impermeable to moisture and moisture absorption and has a dielectric constant lower than about 2.5 and a dissipation coefficient lower than about 0.001 at frequencies up to about 650 MegaHertz.Type: ApplicationFiled: January 11, 2006Publication date: June 1, 2006Applicant: NORDX/CDT, INC.Inventors: Gavriel Vexler, Jacques Cornibert
-
Patent number: 7007799Abstract: A box for payout of a filamentary product such as cable or wire that is wound in a coil inside of the box. The box is constructed to retain the coil securely and utilize material in an efficient manner. Particularly, the box is adapted to retain a figure-eight coil of wire, which is often formed in an irregular shape. The box may include a payout tube that extends from a point outside of the box through a wall of the coil and into an interior point of the coil. The box serves to retain such a payout tube with an efficient amount of material and also provides for an improved method of assembling the box, the coil, and the payout tube.Type: GrantFiled: August 5, 2003Date of Patent: March 7, 2006Assignee: Nordx/CDT, Inc.Inventor: Gerard Coté
-
Publication number: 20050014420Abstract: A method for terminating a telecommunications cable where the cable comprises a plurality of twisted pairs of wires. The method comprises the steps providing an interconnection module comprising a pair of contacts for each of the twisted pairs, aligning the end portions and interconnecting each of the aligned end portions with a corresponding pair of conductive contacts. The aligning step comprises arranging the end portions such that when connected to the contact pairs, the twisted pairs remain uncrossed. A wire lead guide for isolating the end portions of a plurality twisted pairs of wires an a connector assembly using the same. The guide comprises a guide body and a plurality of non-intersecting passageways through the body. Each of the passageways is comprised of an entrance and an exit. The end portions of one of the twisted pairs are inserted through a corresponding one of the passageways. The passageways isolate the twisted pairs of wires from one another.Type: ApplicationFiled: May 24, 2004Publication date: January 20, 2005Applicant: NORDX/CDT, INC.Inventors: Alain Quenneville, Michel Bohbot, Antoine Tazbaz
-
Publication number: 20040216914Abstract: An insulated wire for use in a communications cable, the wire comprising a conductor, at least one inner insulating layer surrounding the conductor, and an outer layer surrounding the insulating layers. At least one of the inner layers is a nano-composite comprising nano-sized platelets and a flame and smoke retardant additive package dispersed in a polyolefin matrix. The outer layer is substantially resistant to flame spread and smoke evolution, substantially impermeable to moisture and moisture absorption and has a dielectric constant lower than about 2.5 and a dissipation coefficient lower than about 0.001 at frequencies up to about 650 MegaHertz.Type: ApplicationFiled: March 10, 2004Publication date: November 4, 2004Applicant: NORDX/CDT, INC.Inventors: Gavriel Vexler, Jacques Cornibert
-
Patent number: 6784802Abstract: A system and method for monitoring connectivity in a cable system includes radio frequency identification (RFID) transponders on cable ends and RFID sensors at connection points. The RFID sensors are connected to a central monitoring system. Presence of a particular cable end at a particular connection point is detected and recorded by the central monitoring system.Type: GrantFiled: November 6, 2000Date of Patent: August 31, 2004Assignee: Nordx/CDT, Inc.Inventor: Michael D. Stanescu
-
Patent number: 6780035Abstract: A method and apparatus for discharging accumulated static charge in unshielded twisted pair cables. According to one example, an electrical jack includes a housing having an opening defined therein through which a mating plug is received, a grounding strip, and at least one elastically deformable signal contact residing within the housing. As the mating plug is received, the elastically deformable signal contact may move from a position in contact with the grounding strip to a position not in contact with the grounding strip, thereby discharging static charge from the unshielded twisted pair cables and allowing normal connection to the mating plug.Type: GrantFiled: March 12, 2002Date of Patent: August 24, 2004Assignee: Nordx/CDT, Inc.Inventor: Michel Bohbot
-
Publication number: 20040055781Abstract: Generally, aspects of embodiments of the invention include cable separator spline which comprises a plurality of longitudinally extending walls joined along a central axis of the spline, and a plurality of longitudinally extending channels. Each longitudinally extending channel is defined by a pair of the longitudinally extending walls, where the pair of longitudinally extending walls includes a first wall substantially thicker than a second wall. Other embodiments include a cable separator spline assembly having a plurality of longitudinally extending walls joined along a central axis of the spline, and a plurality of longitudinally extending channels. Each longitudinally extending channel is defined by a pair of the longitudinally extending walls, wherein a pair of opposing longitudinally extending walls have defined through them a common gap defining two separate sub-splines having T-shaped cross-sections.Type: ApplicationFiled: March 3, 2003Publication date: March 25, 2004Applicant: Nordx/CDT, Inc.Inventors: Jacques Cornibert, Jorg-Hein Walling, Christian Yameogo
-
Publication number: 20040026284Abstract: A box for payout of a filamentary product such as cable or wire that is wound in a coil inside of the box. The box is constructed to retain the coil securely and utilize material in an efficient manner. Particularly, the box is adapted to retain a figure-eight coil of wire, which is often formed in an irregular shape. The box may include a payout tube that extends from a point outside of the box through a wall of the coil and into an interior point of the coil. The box serves to retain such a payout tube with an efficient amount of material and also provides for an improved method of assembling the box, the coil, and the payout tube.Type: ApplicationFiled: August 5, 2003Publication date: February 12, 2004Applicant: Nordx/CDT, Inc.Inventor: Gerard Cote
-
Patent number: 6575778Abstract: A punch down insulation displacing connector housing is a body made of plastic which surrounds the connector. The housing restrains the connector parts from longitudinal movement when the connector is positioned to be press fit onto or to be soldered onto a substrate such as a printed circuit board. The housing also aligns the opening of the connector with an opening slot on the body. Thus, the housing aligns a connection tool head used to insert a wire with the opening of the connector. This housing will stop movement of the connection tool head during wire insertion to position the wire inside the connector at a desired position. Also, the housing offers a surface where the connection tool head will stop and cut the wire. This housing is used on a compact electrical connector and will surround the connector. The housing can accept various types of connection tool head.Type: GrantFiled: April 2, 1999Date of Patent: June 10, 2003Assignee: Nordx/CDT, Inc.Inventors: Luc Milette, Benoit Chevarie
-
Patent number: 6566607Abstract: A data communication cable includes a cable jacket surrounding a plurality of twisted pairs of insulated conductors disposed longitudinally over the length of the communication cable and arranged side-by-side to reduce cross-talk between the twisted pairs. The cable also includes a first region having a first thickness disposed between two regions having a second thickness. These regions, or another structure located on the outer surface of the jacket, are arranged to prevent symmetric stacking of several communication cables and thus reduce alien cross-talk arising from outside of the communication cable.Type: GrantFiled: October 5, 1999Date of Patent: May 20, 2003Assignee: Nordx/CDT, Inc.Inventor: Jörg-Hein Walling
-
Publication number: 20030051897Abstract: A coaxial cable compatible with standard 735 type performance parameters has a smaller diameter and greater flexibility at a lower cost.Type: ApplicationFiled: September 17, 2002Publication date: March 20, 2003Applicant: Nordx/CDT, Inc.Inventors: Denis Blouin, Joel Bernard, Yves Dion
-
Patent number: 6410845Abstract: A method and apparatus for adjusting the coupling reactances between twisted pairs contained within a data communications cable is disclosed. An isolation element is used to isolate one or more twisted pairs of wires from the other twisted pairs of wires contained within the data communications cable. The isolation element may be constructed of dielectric, conductive, or ferromagnetic materials or a combination thereof. It may also include various shapes, patterns, and/or windows for creating a specified level of crosstalk among the twisted pairs contained within the cable.Type: GrantFiled: February 7, 2001Date of Patent: June 25, 2002Assignee: Nordx/CDT, Inc.Inventor: Ivan Reede
-
Patent number: 6409547Abstract: A high performance modular connector system includes a plug and a jack both arranged for high frequency data transmission. The plug is constructed for coupling in a mating arrangement with the jack both including a plurality of contacts arranged to provide conductive paths for carrying a high-frequency data signal. The connector system includes several counter-coupling or compensation structures, each having a specific function in cross-talk reduction. The compensation structures are designed to offset and thus electrically balance frequency-dependent capacitive and inductive coupling. One important type of the compensation structure is located near contact points forming the conductive paths between connector terminals of the jack and connector terminals of the plug. This compensation structure is conductively connected to at least some of the contacts and is located outside the conductive path carrying the high-frequency data signal.Type: GrantFiled: December 2, 1999Date of Patent: June 25, 2002Assignee: NORDX/CDT, Inc.Inventor: Ivan Reede
-
Patent number: 6379175Abstract: A fixture is provided adjacent to a cable containing multiple twisted pairs. The fixture includes longitudinal channels for controlling the trajectory of the wire pairs after the twisted pairs have been exited the cable and have been detwisted. The fixture maintains the wire pairs in an orientation beneficial for reducing crosstalk.Type: GrantFiled: March 25, 1999Date of Patent: April 30, 2002Assignee: Nordx/CDT. Inc.Inventor: Ivan Reede
-
Patent number: 6365836Abstract: A cross web core in a high performance data cable maintains geometric stability between plural twisted pair transmission media and between each twisted pair and the cable jacket. The cross web core may further isolate twisted pairs from each other by including conductive or magnetically permeable materials. By so doing, loss, impedance and crosstalk performance are improved.Type: GrantFiled: June 30, 1999Date of Patent: April 2, 2002Assignee: Nordx/CDT, Inc.Inventors: Denis Blouin, Jacques Cornibert, Jörg-Hein Walling
-
Patent number: 6356162Abstract: In an interconnection system including a cable and connectors, compensation is provided for stray reactances found in the connector elements. The connector elements may be RJ-style connector plug and jack pairs, which exhibit characteristic capacitive and inductive properties. The compensation is capacitive and/or inductive elements formed in the cable, components of the connectors, or an external printed wiring board. A double &pgr;-network is the preferred circuit topology for the compensated system.Type: GrantFiled: April 2, 1999Date of Patent: March 12, 2002Assignee: Nordx/CDT, Inc.Inventors: Yves DeFlandre, Marc Hoffman, Gary Cyr
-
Patent number: 6272828Abstract: A cable twisting method and apparatus, for forming double twisted pair cables. The invention longitudinally distributes the eccentricities of the individual cables, where the helical propagation of the eccentricity is not conformal to the helix formed by the geometric shape of the cables.Type: GrantFiled: December 3, 1999Date of Patent: August 14, 2001Assignee: Nordx/CDT, Inc.Inventors: Jörg-Hein Walling, Jean-Francois Richard, Omar Saad
-
Patent number: 6259256Abstract: A cable testing device apparatus has been developed so as to measure the NEXT and ELFEXT characteristics of a cable containing a plurality of twisted pairs. In particular, the present invention simultaneously provides each twisted pair within the cable with an electrical signal of equal magnitude and measuring the equivalent power sum output for each of the individual twisted pairs within the cable. Thus, a total of 25 measurements for each test are needed, for a total of 50 tests.Type: GrantFiled: March 1, 1999Date of Patent: July 10, 2001Assignee: Nordx/CDT, Inc.Inventor: Jörg-Hein Walling
-
Patent number: 6255593Abstract: A method and apparatus for adjusting the coupling reactances between twisted pairs contained within a data communications cable is disclosed. An isolation element is used to isolate one or more twisted pairs of wires from the other twisted pairs of wires contained within the data communications cable. The isolation element may be constructed of dielectric, conductive, or ferromagnetic materials or a combination thereof. It may also include various shapes, patterns, and/or windows for creating a specified level of crosstalk among the twisted pairs contained within the cable.Type: GrantFiled: March 25, 1999Date of Patent: July 3, 2001Assignee: Nordx/CDT, Inc.Inventor: Ivan Reede