Automatic provisioning of a telephone line test system

Details Automatic provisioning of a telephone line test system Automatic provisioning of a telephone line test system

2005-12-29

2009-10-13

Matar, Ahmad F (Department: 2614)

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Of trunk or long line

C379S001010, C379S001040, C379S022000, C379S029010

Reexamination Certificate

active

07602885

ABSTRACT:
A telephone line test system that may be used to compute line length of subscriber lines connected to a central office or other distribution point. When initially installed, the test system may automatically compute CO limits. The CO limits are computed from single-ended measurements on subscriber lines and represent electrical effects of the path between a test head and the distribution point. These CO limits are used to more accurately compute the length of lines connected to the distribution point using measurements made by the test system. Because the process uses single-ended measurements, it may be run in background mode during the initial installation of the test system or at any subsequent time it is desired to update the CO limits.

REFERENCES:
patent: 2003/0063712 (2003-04-01), Chattell et al.
patent: 2006/0159231 (2006-07-01), Vitanza et al.
patent: WO 0176209 (2001-10-01), None
Teradyne, Inc., Celerity-4TEL, “LDU 100 Commissioning and Customer Acceptance Guide,” Issue 2, D19-001-06, pp. cover, i-ii, 27-36,.
International Search Report from1 PCT/US2006/062007 dated May 16, 2007.

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