US Patent 7203159 Line card-sourced ESF framing protection switch FDL signaling

Patent 7203159 was granted and assigned to ADTRAN on April, 2007 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

ADTRAN

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7203159

Patent Inventor Names

Dennis B. McMahan0

Bradley D. Tidwell0

Date of Patent

April 10, 2007

Patent Application Number

10167012

Date Filed

June 11, 2002

Patent Primary Examiner

‌

Duc Ho

Patent abstract

A back-up channel line card-installed ESF framing mechanism independently sources an FDL signaling channel for the transport of protection switch signaling information, taking advantage of the fact that DSL multiplexer equipment is capable of accepting and processing ESF framed digital data, including embedded FDL-based signaling information. Upon completion of transport of the FDL-based signaling information, the back-up channel is used for data transport in place of a faulty channel.