Clock distributor

Details Clock distributor Clock distributor

1990-04-30

1991-11-12

Eisenzopf, Reinhard J.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

307219, 328 60, 359158, 359173, 385 45, H04B 1000

Patent

active

050654543

ABSTRACT:
In a digital switching center for a telephone switching system or the like, a clock signal distribution arrangement having a redundant central clock generator supplying clock signals to the switching matrices the arrangement including electro-optical transducers, brancher modules, light conductors and opto-electrical transducers connected in signal distribution paths between the clock generator and the switching matrices. The distribution paths are doubled for redundancy purposes.

REFERENCES:
patent: 3751685 (1973-08-01), Kaeger
patent: 4644498 (1987-02-01), Bedard et al.
patent: 4779008 (1988-10-01), Kessels
patent: 4829198 (1989-05-01), Maley et al.
patent: 4839855 (1989-06-01), Van Driel
patent: 4893306 (1990-01-01), Chao et al.
OPTO Elektronik Magazin, vol. 2, 1986, No. 3, Fachberichte, pp. 202-213.
Telcom Report 4 (1981) Beiheft Digitalvermittlungssystem EWSD pp. 43-48, Technik.

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