Abstract: A camera of a mobile device may be used to capture an image of at least part of a component. The component is identified based at least in part on the captured image. Once the component has been identified, the mobile device communicates with a remote server to receive one or more real-time electrical parameter values that correspond to the component. A diagnostic image of the component is displayed on a display of the mobile device, the diagnostic image showing one or more wiring terminals of the component. One or more of the real-time electrical parameter values received from the remote server are superimposed on the diagnostic image, wherein each of the one or more real-time electrical parameter values that is superimposed is positioned adjacent to the corresponding one or more of the wiring terminals.

Abstract: A camera of a mobile device may be used to capture an image of at least part of a component. The component is identified based at least in part on the captured image. Once the component has been identified, the mobile device communicates with a remote server to receive one or more real-time electrical parameter values that correspond to the component. A diagnostic image of the component is displayed on a display of the mobile device, the diagnostic image showing one or more wiring terminals of the component. One or more of the real-time electrical parameter values received from the remote server are superimposed on the diagnostic image, wherein each of the one or more real-time electrical parameter values that is superimposed is positioned adjacent to the corresponding one or more of the wiring terminals.

Abstract: Guiding people toward an exit of a facility includes sending messages to a plurality of sounder devices, each message addressed to a corresponding one of the sounder devices and including a payload that specifies one or more timing parameters unique to the corresponding sounder device, the one or more timing parameters specifying when an audible alarm is to be emitted by the corresponding sounder device. A broadcast alarm message is sent to all sounder devices. In response to receiving the broadcast alarm message, each of the sounder devices emit an audible alarm in accordance with the one or more timing parameters unique to the corresponding sounder device relative to a time of reception of the broadcast alarm message to produce the perceivable sequential audible sweep from the sounder devices toward the exit of the facility.