Detecting degradation in telecommunications local loop networks

Details Detecting degradation in telecommunications local loop networks Detecting degradation in telecommunications local loop networks

1997-03-20

1999-08-24

Olms, Douglas W.

Multiplex communications

Diagnostic testing

Path check

370249, 379 26, 379 27, 371 201, G01R 3108, G06F 1100, G08C 1500

Patent

active

059433183

ABSTRACT:
An arrangement for monitoring for degraded signals in the loop distribution plant of a telecommunications network. Network interface units (NIUs) are used as an interface between a transmission medium, such as a coax cable or a radio channel, and customer premises equipment. One of these NIUs are assigned an additional task, that of generating up stream performance monitor singals, to be monitored by a centralized performance monitor and control unit, and of monitoring downstream signals to determine their performance characteristics, such as error rate, and to report that performance to the centeralized unit.

REFERENCES:
patent: 5301050 (1994-04-01), Czerwiec et al.
patent: 5343461 (1994-08-01), Barton et al.
patent: 5400321 (1995-03-01), Nagato
patent: 5425017 (1995-06-01), Copley et al.
patent: 5553059 (1996-09-01), Emerson et al.

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