System for the measurement of sonet network synchronization qual

Details System for the measurement of sonet network synchronization qual System for the measurement of sonet network synchronization qual

1995-06-12

1998-06-02

Tse, Young T.

Pulse or digital communications

Testing

Phase error or phase jitter

375368, 375369, 375373, 370516, H04L 704

Patent

active

057612420

ABSTRACT:
The invention provides a system for measuring the synchronization of SONET signals. The invention counts the bits in an STS-1 signal starting at a reference time point and ending when the framing bytes A1 and A2 are detected. The counts are repeated every other SONET frame. The system can be applied to multiple SONET signals arriving at a location. The system can employ a CPU to analyze the bit counts to determine if the timing of a SONET signal begins to experience wander.

REFERENCES:
patent: 4835768 (1989-05-01), Hubbard et al.
patent: 5052025 (1991-09-01), Duff et al.
patent: 5113417 (1992-05-01), McNesby
patent: 5132991 (1992-07-01), McNesby et al.

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