D-shield telephone cables

Details D-shield telephone cables D-shield telephone cables

1976-08-10

1978-04-18

Grimley, Arthur T.

Electricity: conductors and insulators

Anti-inductive structures

Conductor transposition

174106R, 174107, H01B 1106

Patent

active

040852849

ABSTRACT:
This internally shielded telephone cable provides more efficient shielding for meeting near-end crosstalk requirements in carrier systems having expanded channel capacity and increase in equivalent frequency from 772 kHz to 1.576 MHz or higher. The improved shielding uses tapes bent into configurations that obtain greater shielding area from a single tape, and constructions that are less expensive than prior art and produce a mechanically stronger and more unitary cable structure.

REFERENCES:
patent: 3622683 (1971-11-01), Roberts et al.
patent: 3803340 (1974-04-01), Jachimowicz et al.
patent: 3911200 (1975-10-01), Simons et al.
patent: 3968321 (1976-07-01), Olszewski et al.

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