Local and remote bit error rate monitoring for early warning of

Details Local and remote bit error rate monitoring for early warning of Local and remote bit error rate monitoring for early warning of

1985-09-19

1987-12-01

Atkinson, Charles E.

Excavating

370 14, 371 5, 371 22, 379 4, H04L 100, G06F 1110

Patent

active

047109246

ABSTRACT:
In-service line monitoring apparatus to detect and isolate marginal and failed digital transmission equipment within a digital telecommunication system having at least two end terminals. At selected terminal and repeater locations, a digital error detector monitors the bit error rate for each location. The detected BER is truncated to include at least the most significant digit and the exponent of the BER. The truncated BER is stored and then encoded for transmission back to the command center usually located at an end terminal. At the one end terminal the encoded BER is stored and displayed upon request. By being able to monitor the truncated BER at any location or direction, maintenance personnel are able to determine when a link in the system begins to deteriorate well before a complete path failure occurs.

REFERENCES:
patent: 3916379 (1975-10-01), Dulaney et al.
patent: 3928830 (1975-12-01), Bellamy et al.
patent: 4022988 (1977-05-01), Lentz et al.
patent: 4122358 (1978-10-01), Altmann
patent: 4490817 (1984-12-01), Turner
patent: 4604745 (1986-08-01), Takasaki et al.

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