Belden Wire & Cable Company

Gregory J Deitz

Galen Mark Gareis

Timothy N Berelsman

We provide a high performance bound lateral shielded twisted pair cables, a high performance data cable containing at least four of the bound lateral shielded twisted pair cables, and a method for preparing the same. The bound lateral shielded twisted pair cables preferably have a 20&deg; C. adjusted standard impedance deviation of 4.5 or less and the high performance data cable contains at least four of the bound lateral shielded twisted pair cables and has a 20&deg; C. adjusted average standard impedance deviation of 4.5 or less. The twisted pair is laterally wrapped with a metal shield tape and a fabric or metal braid or thread at a tension that provides the above. The tension is such that it provides a cross-sectional void area of less than 25% and preferably less than 18% of the lateral shielded twisted pair cable cross-sectional area. The tape is laterally wrapped with an overlap of at least 10% . Preferably, the cables have a rating out to 600 MHz and 1000 MHz. We also provide a UL 910 plenum at least category 5 high-performance data cable that has a non-fluorinated jacket and between the jacket and cable core, a temperature-resistant flame-retardant separator tape.

High performance data cable and a UL 910 plenum non-fluorinated jacket high performance data cable

A plenum rated cable having a core that includes a transmission medium of a plurality of insulated conductors preferably having thereon an insulating layer of a fluorinated ethylene composition. A shield surrounds the insulated conductors and extends longitudinally within and parallel to the length of the cable and includes a first layer of aluminum material and a second layer of low temperature smoke resistant cellulose acetate or polypropylene. The first and second layers are bonded together. A drain wire drains leakage within the cable generated from the current and allows for easy termination of the shield to a connector. A thermoplastic jacket encloses the drain wire and longitudinally surrounds the shield. The jacket is made preferably of a polyvinyl chloride composition.

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Richmond, IN, United States of America

Gregory J Deitz