The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 08, 2008

Filed:

Dec. 03, 2002
Applicant:

Hideji Abe, Kawasaki, JP;

Inventor:

Hideji Abe, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 3/14 (2006.01); H04L 12/26 (2006.01); H04B 10/08 (2006.01); H04B 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a subscriber line terminal device, which enables identification of the cause of abnormality when abnormality is detected in remote monitoring of a subscriber line terminating device connected to the terminal device via an optical fiber. The terminal device receives a plurality of monitoring signals sent from the terminating device via the optical fiber, the plurality of monitoring signals indicating normality or abnormality of a plurality of monitored items in the terminating device respectively. When two or more among the plurality of monitoring signals indicates abnormality, the terminal device selects a monitoring signal with high order of priority from among the two or more monitoring signals indicating abnormality, based on a prescribed order of priority.


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