Telecommunications multipair cable

Details Telecommunications multipair cable Telecommunications multipair cable

1979-11-27

1981-04-14

Askin, Laramie E.

Electricity: conductors and insulators

Anti-inductive structures

Conductor transposition

174 36, 174110F, H01B 1104, H01B 1106, H01B 702

Patent

active

042621640

ABSTRACT:
A multipair telephone cable (50) has been specifically developed for voice frequency and T1 carrier frequency transmission between cities. The copper wire gauge, dielectric diameter, and insulation expansion are uniquely designed so that this single cable design can be used for either air core or waterproof versions of the cable. Advantageously, both cable versions are compatible with existing carrier and voice frequency electronics. Also, the load coil spacing for voice frequency transmission and the regenerative repeater spacing for carrier transmission coincide in both versions.

REFERENCES:
patent: 4058669 (1977-11-01), Nutt et al.
patent: 4174236 (1979-11-01), Dougherty et al.
Metcalf, E. D., "Cellular Insulation as an Answer to Material Conservation", Proceedings of the 13th International Wire and Cable Symposium, Atlantic City, N.J., pp. 53-58, Dec. 3-5, 1974.
Mitchell, D. M., "Dual Insulation Conserves Cable Materials", Bell Laboratories Record, vol. 54, No. 8, pp. 225-228, Sep. 1976, Published by Bell Laboratories, Murray Hill, NJ.
Durham et al., "LOCAP: A Low-Capacitance Cable for a Hih-Capacity System", Bell Laboratories Record, vol. 52, No. 7, pp. 217-221, Jul.-Aug. 1974, Published by Bell Laboratories, Murray Hill, NJ.
Hoth, D. F., "The T1 Carrier System", Bell Laboratories Record, vol. 40, No. 10, pp. 358-363, Nov. 1962, Published by Bell Laboratories, Murray Hill, NJ.
Nutt, W. G., et al., "Multipair Cables for Digital Transmission", National Telecommunications Conference Proceedings, pp. 21.1.1-21.1.5, Dec. 1978.

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