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:
Sep. 05, 2006

Filed:

Oct. 05, 2001
Applicants:

David Eric Jones, Huntsville, AL (US);

Jason N. Morgan, Madison, AL (US);

Stacy Morris Murphree, Harvest, AL (US);

Jason Ted Brock, New Market, AL (US);

Inventors:

David Eric Jones, Huntsville, AL (US);

Jason N. Morgan, Madison, AL (US);

Stacy Morris Murphree, Harvest, AL (US);

Jason Ted Brock, New Market, AL (US);

Assignee:

Adtran, Inc., Huntsville, AL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/17 (2006.01); H04B 1/38 (2006.01); H04B 17/00 (2006.01); H04Q 7/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

A (DS3) network interface unit (NIU) by-pass architecture places the NIU on its own circuit card and exclusive of by-pass switching (and relay) components, which are installed in the equipment shelf, proper, so that physical removal of the NIU card will leave the by-pass circuitry intact. The by-pass circuit responds to an abnormality of the NIU card, such as malfunction or physical removal of the NIU from its card slot, and also to a power supply failure. It also contains an indicator to draw attention to a failed NIU, increasing the likelihood that someone will notice a damaged card.


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