Abstract: A housing having a first chamber arranged to receive one or more enclosures, and having a second chamber separated from the first chamber by a wall is provided. The one or more enclosures are each arranged to have electronic circuitry within the enclosure. The housing has one or more fans arranged to exhaust a first airflow from each of the one or more enclosures and the first chamber. The housing has one or more power supplies with a further one or more fans arranged to exhaust a second airflow from the second chamber and the one or more power supplies. The wall has one or more apertures arranged to at least partially align with one or more apertures of each of the one or more enclosures, so that the second airflow proceeds through the one or more apertures of the wall.

Abstract: A method for power sequencing is provided. The method includes determining a chassis configuration prior to blades within slots of the chassis being powered up and generating a power sequence based on the determining. The method includes applying the power sequence to the blades and monitoring the applying and the chassis configuration to achieve an optimal system load.

Abstract: An integrated indoor and outdoor positioning system and method. A first communication unit aperiodically emits an ultrasonic signal. A second communication unit receives the ultrasonic signal and transmits an identification signal in response to receiving the ultrasonic signal. One of the two communication units is placed at a predetermined position and the other of the two communication units is placed with an object. Identification information obtained from the identification signal is used to determine position information indicating that the object is at the predetermined position. The first communication unit is placed at the predetermined position and the second communication unit accompanies the object. Alternatively, the first communication unit accompanies the object and the second communication unit is placed at the predetermined position.