Tributary protection system

Details Tributary protection system Tributary protection system

1995-09-14

1998-09-15

Olms, Douglas W.

Multiplex communications

Fault recovery

Bypass an inoperative switch or inoperative element of a...

370225, H04L 122

Patent

active

058090100

ABSTRACT:
The present invention provides a novel tributary protection system for a telecommunications system employing multiplexed lines. To overcome problems with separate line controllers which select the multiplexers to be used, the invention teaches a system wherein each tributary channel interfaces with the multiplexers Mux 1, Mux 2 via a protection device MPD which can switch the tributaries between a first multiplex Mux 1 and a second multiplex Mux 2 when the performance of the system employing the operational multiplexer Mux 1 has been degraded.

REFERENCES:
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patent: 5216666 (1993-06-01), Stalick
patent: 5345438 (1994-09-01), Ozaki
patent: 5408462 (1995-04-01), Opoczynski
patent: 5493432 (1996-02-01), Yoneda
patent: 5506833 (1996-04-01), Nemoto
British Telecommunication Engineering Jul. 1986 vol. 5, Pt 2, pp. 113-123, Myall J.V.W. The Design of Production Terminal Equipment for Digital Optical-Fibre Submarine Cable Systems.

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