Optical fiber transmission apparatus, in particular for submarin

Details Optical fiber transmission apparatus, in particular for submarin Optical fiber transmission apparatus, in particular for submarin

1988-04-07

1989-06-20

Sikes, William L.

G02B 628

Patent

active

048404489

ABSTRACT:
An optical fiber cable transmission apparatus includes repeater-interchanger modules each of which includes at least one interchange module or pair of drop and insert switches. The module is such that a drop switch and an insert switch are provided between a line input and a line output with the second input of the insert switch coming from a buffer memory. Both switches are controlled by a common synchronizing circuit. A symmetrical arrangement is provided for the other drop and insert switch. Transmission takes place at a high data rate, and the interchange module serves to extract low data rate segments from each frame relating to a first stream and to replace them with same data rate frame segments relating to another stream. This arrangement makes it possible to distribute an "underwater multiplexing" function, i.e. to reconfigure traffic over a plurality of such repeater-interchangers.

REFERENCES:
patent: 4105869 (1978-08-01), Aveneau et al.
patent: 4680809 (1987-07-01), Hartkopf et al.
IBM Technical Disclosure Bulletin, vol. 22, No. 8B, Jan. 1980, pp. 3815-3816, New York; F. Gfeller et al.: "Local Area Fiber-Optic Broadcast Network".
British Telecommunications Engineering, vol. 5, No. 2, Jul. 1986, pp. 177-182, London, Great Britian; J. M. Horne et al.: "Network Planning: The New Opportunities Created by Submarine Optical-Fibre Systems".
Patent Abstracts of Japan, vol. 8, No. 285, (E-287), [1722], Dec. 26, 1984; & JP-A-59 151 543, (Toshiba K.K.), 30-08-1984.

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