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:
Jan. 30, 2018
Filed:
Aug. 11, 2014
Honeywell International Inc., Morristown, NJ (US);
Donald M. Boettger, Millbury, MA (US);
HONEYWELL INTERNATIONAL INC., Morristown, NJ (US);
Abstract
An apparatus and method for detection and adaption to an end-of-line resistor in a notification appliance circuit (NAC) of a control panel or power booster of, for example, an alarm system, and for ground fault localization in the alarm system are provided. The apparatus can include the NAC where the NAC includes first and second analog input terminals, where the NAC includes first and second external output terminals, and where the NAC includes an end-of-line resistor. Current can be driven through the NAC via the first and second analog input terminals, and voltage can be measured at each of the first and second external output terminals. The measured voltage can be indicative of one of a value of the end-of-line resistor or that a state of the NAC is one of open, shorted, ground faulted, or normal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile