Fault tolerant data transmission network

Details Fault tolerant data transmission network Fault tolerant data transmission network

1987-06-26

1991-06-11

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

H04B 1016

Patent

active

050239422

ABSTRACT:
A data transmission system, in which a plurality of repeater nodes are interconnected by optical fiber or electrical transmission links, which has a predetermined bypass path split ratio and does not require an automatic gain control circuit. Each node includes an electrical splitter at its input, an active branch including a receiver and a transmitter, and a passive branch which bypasses the active path. The active and passive branches are joined at the output of the node by an electrical combiner. By choosing the splitting ratio of the electrical splitters to have approximately a 70/30 split, with 70% going to the active branch and 30% going to the passive branch, a 10.sup.-9 bit error rate is readily achievable.

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Albanese, A., "Fail-Safe Nodes for Lightguide Digital Networks", The Bell System Technical Journal, Feb. 1982, pp. 247-256.

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