Abstract: A method for performing an availability measurement on a networked system comprising: identifying at least one measurement point in the system; defining a measurement model configured to return a pass or fail result corresponding to a threshold sensed at the at least one measurement point and to a measurement function; measuring the system using the measurement model, wherein measuring the system comprises a plurality of measurements; collecting a plurality of pass or fail results from the plurality of measurements, wherein each one of the plurality of pass or fail results corresponds to a measurement point and to a measurement function of one or more measurements; and aggregating the plurality of pass or fail results to formulate a single availability value representing the availability of the system.

Abstract: A method for performing an availability measurement on a networked system comprising: identifying at least one measurement point in the system; defining a measurement model configured to return a pass or fail result corresponding to a threshold sensed at the at least one measurement point; measuring the system using the measurement model; populating a table with results from the measurement, the table including rows corresponding to measurement points and columns corresponding to measurement functions for multiple measurements; and aggregating the measurement criteria row results to formulate a single availability value representing the availability of the system.

Abstract: A circuit breaker communication system is provided including a circuit breaker, an electronic module to record and store data associated with the operation of the circuit breaker, and a portable communication unit for downloading the stored data. The portable communication unit includes a power source, a display unit, a processor unit, a communication interface, and a keypad. Also, a cable is provided for interconnecting the portable communication unit to the electronic module. The cable is configured to carry a data signal between the portable communication unit and the electronic module, and to conduct power to the electronic module from the power source. The system may include an optical communication link to transmit to or receive signals from the circuit breaker, a transmitter to transmit data to the optical communication link; and a receiver to receive signals from the optical communication link.

Abstract: A device and system for the wireless communication with a circuit breaker is provided which allows for obtaining data associated with a circuit breaker to quickly and easily access information associated with the trip event. The circuit breaker contains an electronic module which is configured to record and transmit data associated with the circuit using wireless technology.