Performance monitoring for loops

Details Performance monitoring for loops Performance monitoring for loops

1993-03-11

1995-02-28

Young, Brian K.

Coded data generation or conversion

Digital code to digital code converters

To or from nrz codes

H03M 512

Patent

active

053941454

ABSTRACT:
Loop Performance Monitoring (LPM) for DDS loops is described. Even though DDS loops have Intentional Bipolar Violations (BPVs), a Loop Coding Violations (LCVs) detection strategy based on further processing of BPVs is described. By monitoring LCVs a local loop terminating device can determine Bit Error Rate (BER).

REFERENCES:
patent: 4472813 (1984-09-01), Koike et al.
Bell Communications Research, "Generic Requirements for the Digital Data System (DDS) Network Office Channel Unit", Technical Advisory, TA-TSY-000083, Issue 2, (Apr., 1986).
Bell Communications Research, "Digital Data System (DDS) Multipoint Junction Unit (MJU) Requirements", Technical Advisory, TA-TSY-000192, Issue 2, (Apr., 1986).
"Carrier-to-Customer Installation DS1 Metallic Interface", American National Standard for Telecommunications, (New York) ANSI T1.403-1989.
Chernak, J. and Lang, J. J., "D4 Digital Channel Bank Family: Overview", The Bell System Technical Journal, 61:9 2607-2845 (Nov., 1982).
Snow, N. E. and Knapp, J., Jr., "Digital Data System: System Overview", The Bell System Technical Journal, 54:5 (May-Jun., 1975).
Bell Communications Research, "Generic Requirements for the Subrate Multiplexer", Technical Advisory, TA-TSY-000189, Issue 1, (Apr., 1986).

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