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.
Patent No.:
Date of Patent:
Dec. 03, 2002
Filed:
Jun. 04, 2001
Dobrin Tzotzkov, Ridgefield Park, NJ (US);
ADC Telecommunications, Inc., Eden Prairie, MN (US);
Abstract
A system and method provide for accessing a plurality of communication lines. Each of a number of line access devices is coupled to at least one of the communication lines. A patch circuit, associated with each line access device, provides for manually establishing a cross-connection between a first and second communication line. A bus couples the first communication line with the patch circuit. A locking circuit is coupled to the bus and the patch circuit. The locking circuit selectively enables and disables patch circuit access to the first communication line in response to a control signal. The line access devices may each comprise a single line card or a front and rear line card pair. A redundant power supply arrangement provides for keep-alive backup power for the front line card in response to a failure of primary supply power delivery to the front line card.