Local and remote bit error rate monitoring for early warning of fault location of digital transmission system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 1, 1987
Grant Date -
N/A
app pub date -
Sep 19, 1985
filing date -
Sep 19, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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