Monitoring system for optical transmission line repeaters

Details Monitoring system for optical transmission line repeaters Monitoring system for optical transmission line repeaters

1979-04-09

1981-07-14

Malzahn, David H.

Excavating

371 22, H04B 346

Patent

active

042788501

ABSTRACT:
The error rate and the operation of repeaters inserted in an optical transmission line are monitored at the terminal station on land by transmitting the test signal and monitoring the response signal of repeaters through the optical data transmission line without utilizing interstitial copper pair. Each repeater has the particular identification code, and the transmission terminal transmits the test code having the repeater identification code and an acknowledgement block with an empty bit position on the time divisional basis with the data to be transmitted. The repeater which finds his identification code in the test code, inserts the response in the acknowledgement block, and repeats the signal including both said test code and the data to be transmitted. The reception terminal analyzes the response signal of each repeater to determine the error rate of each repeaters.

REFERENCES:
patent: 3692964 (1972-09-01), Camiciottoli et al.
patent: 3739098 (1973-06-01), Camiciottoli et al.
patent: 3760127 (1973-09-01), Camiciottoli et al.
patent: 3810577 (1974-05-01), Drescher et al.
patent: 4022988 (1977-05-01), Lentz et al.
patent: 4069402 (1978-01-01), Mantovani et al.

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