Dynamic, automated double-ended system and method for...

Details Dynamic, automated double-ended system and method for... Dynamic, automated double-ended system and method for...

2006-12-12

2006-12-12

Tieu, Binh K. (Department: 2614)

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Testing of subscriber loop or terminal

C379S021000, C379S024000, C379S027040, C379S029030, C379S030000

Reexamination Certificate

active

07149285

ABSTRACT:
A multi-unit test system performs automated and dynamically alterable, double-ended testing of telephone lines, whose service is provided on copper cable pairs. A prescribed set of (e.g., twelve) individual tests are executed either from a hand-held measurement unit, or by a central office-resident direct access test unit, or by a collaboration of the two. The hand-held measurement unit and the direct access test unit exchange FSK-based test control messages with one another that are effective to cause a selected electrical condition to be applied to a first portion of the wireline and to cause a prescribed electrical measurement to be made at a second portion of the wireline.

REFERENCES:
patent: 4670898 (1987-06-01), Pierce et al.
patent: 4764949 (1988-08-01), Faith et al.
patent: 4841560 (1989-06-01), Chan et al.
patent: 5592528 (1997-01-01), Nelson et al.
patent: 5764726 (1998-06-01), Selig et al.
patent: 6516053 (2003-02-01), Ryan et al.

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