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. 22, 1998
Filed:
Nov. 30, 1995
Robert E Riley, Jackson, MS (US);
Square D Company, Palatine, IL (US);
Abstract
A programmable data link module for use with a time division multiplex data bus includes an input and a high voltage protection circuit to prevent outputting of data to the data bus under several different operation conditions. These include programming of the data link module and verification of the programming. The data link module also inhibits the outputting of data signals to the data bus in response to changes of the input signals from a local input device until the power to the data link module has stabilized for a preselected period of time. The high voltage protection circuit protects the data link module from excessive overvoltage from other devices connected to the data bus.