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:
Oct. 04, 2016
Filed:
May. 03, 2013
Tellabs Oy, Espoo, FI;
Antti Holma, Espoo, SE;
Heikki Laamanen, Espoo, FI;
Petri Kohonen, Vantaa, FI;
Ian Leiman, Espoo, FI;
CORIANT OY, Espoo, FI;
Abstract
Equipment including at least one plug-in unit and a body device for receiving the plug-in unit is presented. The plug-in unit includes a mechanical structure () enabling the plug-in unit to be locked in its operating position with respect to the body device with a fastening element () that can be, for example, a fastening screw. The plug-in unit further includes a sensor circuit () having first electrical properties when the fastening element is in the position locking the plug-in unit in the operating position and otherwise different electrical properties. The equipment includes a monitoring circuit () for generating a signal indicative of a difference between the prevailing electrical properties of the sensor circuit and the first electrical properties, the signal being indicative also of correctness of the installation of the plug-in unit. Thus, the correct installation of the plug-in unit can be electrically indicated and monitored.