Loop-type optical fiber transmission system having master and sl

Details Loop-type optical fiber transmission system having master and sl Loop-type optical fiber transmission system having master and sl

1988-11-28

1990-07-10

Safourek, Benedict V.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455600, 455617, H04B 900

Patent

active

049412060

ABSTRACT:
In a loop-type optical fiber transmission system composed of a master apparatus (50) and a plurality of slave apparatus (54), when an intensity of incident light (6B, 6C, 6E) to a first slave apparatus (55) is insufficient, the first slave apparatus (55) sends a status signal (CS.sub.b) informing malfunction in the light intensity to the master apparatus (50), the master apparatus upon receipt of the status signal from the first slave apparatus (55) sends a command signal to increase an output light intensity of a second slave apparatus (54) which is positioned at the upper stream of the first slave apparatus (55), and thus the intensity of the output light from the second slave apparatus (54) is increased.

REFERENCES:
patent: 4501021 (1985-02-01), Weiss

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