Abstract: Devices, methods, and systems for mass notification are described herein. One method includes receiving, by an operator station, a selection associated with a particular paging group of a fire network associated with a facility, receiving an audio message by the operator station, and communicating the audio message to the particular paging group according to the selection.

Abstract: Devices, methods, and systems for mass notification are described herein. One method includes receiving, by an operator station, a selection associated with a particular paging group of a fire network associated with a facility, receiving an audio message by the operator station, and communicating the audio message to the particular paging group according to the selection.

Abstract: Disclosed are techniques for sensing an angular position of a rotating object over a 360-degree angular position range using an arc position encoder comprising a 180-degree angular position sensing range. The encoder may include a base defined by first and second ends, one or more magnetic field sensors disposed within the base between the first and second ends, one or more of first and second base extensions disposed on the first and second ends, and one or more polarity transition sensors disposed within the one or more of the first and second base extensions. The encoder may further include a magnetic target having first and second magnetic poles disposed on opposite ends so as to generate a uniform magnetic field, wherein the magnetic target is coupled to the rotating object so as to rotate about an axis of rotation located in a center of a circle defined by the base.

Abstract: A circuit breaker includes a breaker housing, a stationary contact, a movable contact, an operating shaft, and a linear position sensor. The stationary contact is non-movably mounted within the breaker housing, and the movable contact is movably mounted within the breaker housing. The movable contact is coupled to receive an input force and is configured, upon receipt of the input force, to move between a closed position, in which the movable contact is electrically coupled to the stationary contact, and an open position, in which the movable contact is electrically isolated from the stationary contact. The operating shaft is coupled to the movable contact to supply the input force thereto. The linear position sensor is connected to the operating shaft and is configured, upon movement of the operating shaft, to supply a position signal representative of movable contact position.