Abstract: A memory cell includes a first resistive memory element, a second resistive memory element electrically coupled with the first resistive memory element at a common node, and a switching element comprising an input terminal electrically coupled with the common node, the switching element comprising a driver configured to float during one or more operations.

Abstract: A method of commissioning wireless network devices in a communication network includes assigning a user-defined number to a wireless network device. The method further includes generating, by the wireless network device, an identification number based on the user-defined number using a first hashing algorithm, generating, by the wireless network device, an encryption key based on the user-defined number using a second hashing algorithm, and transmitting, by the wireless network device, a message that is encrypted using the encryption key for joining the wireless network device to the communication network. The user-defined number is to be provided by a user using an input device that is coupled to, or integral to, the wireless network device.

Abstract: At least one aspect of the invention is directed to a ventilation device. The ventilation device includes a frame configured to be mounted to a barrier, and a plurality of air moving devices configured to be coupled to the frame and configured to draw air from a first side of the barrier to a second side of the barrier. The ventilation unit further includes a control device coupled to the plurality of air moving devices and configured to detect an out of tolerance condition of one of the plurality of air moving devices and control another one of the plurality of air moving devices to increase airflow though the another one of the plurality of air moving devices in response to the out of tolerance condition.

Abstract: An airflow detecting device includes a pivot rod, a first vane portion hingedly secured to the pivot rod and a second vane portion hingedly secured to the pivot rod. The airflow detecting device further includes a sensor assembly coupled to the first vane portion and the second vane portion. The sensor assembly generates a signal when the one of the first vane portion and the second vane portion is moved relative to the other of the second vane portion and the first vane portion when effected by airflow. The airflow detecting device further includes a control module secured to the pivot rod and coupled to the sensor assembly to receive the signal from the sensor assembly. The control module is configured to determine the direction and the amount of airflow based on the signal from the sensor assembly. Other embodiments of airflow detecting devices are further disclosed.

Abstract: A method of commissioning wireless network devices in a communication network includes assigning a user-defined number to a wireless network device. The method further includes generating, by the wireless network device, an identification number based on the user-defined number using a first hashing algorithm, generating, by the wireless network device, an encryption key based on the user-defined number using a second hashing algorithm, and transmitting, by the wireless network device, a message that is encrypted using the encryption key for joining the wireless network device to the communication network. The user-defined number is to be provided by a user using an input device that is coupled to, or integral to, the wireless network device.

Abstract: An airflow detecting device includes at least one pivot rod, a first vane portion hingedly secured to the at least one pivot rod and a second vane portion hingedly secured to the at least one pivot rod. The airflow detecting device further includes a first sensor assembly coupled to the first vane portion and the second vane portion. The first sensor assembly generates a signal when the one of the first vane portion and the second vane portion is moved relative to the other of the second vane portion and the first vane portion when effected by airflow. The airflow detecting device further includes a control module secured to the at least one pivot rod and coupled to the first sensor assembly to receive the signal from the first sensor assembly. The control module is configured to determine the direction and the amount of airflow based on the signal from the first sensor assembly. Other embodiments of airflow detecting devices are further disclosed.

Abstract: An equipment storage rack includes a housing defining an interior region. The housing has an exterior. At least one piece of electronic equipment is supported by the housing within the interior region. A management system is adapted to monitor and display conditions of the equipment storage rack. In a certain configuration, the management system includes a controller unit mounted within the interior region of the housing, a display unit coupled to the controller unit and mounted on the exterior of the housing, and at least one monitoring device, coupled with the controller unit, to monitor at least one parameter of the equipment storage rack. Methods of controlling an equipment storage rack are further disclosed.

Abstract: A door penetrating connector assembly for providing electrical connectivity through a perforated equipment rack door includes a first connector that includes first electrical contacts configured and disposed to fit through corresponding holes in the equipment rack door, and a second connector that includes second electrical contacts configured and disposed to receive and make electrical contact with the first electrical contacts, where the connectors are configured to inhibit electrical connection through the holes provided by the door, of the first and second electrical contacts if the connectors are disposed with an undesirable alignment relative to each other.

Abstract: An equipment storage rack includes a housing defining an interior region. The housing has an exterior. At least one piece of electronic equipment is supported by the housing within the interior region. A management system is adapted to monitor and display conditions of the equipment storage rack. In a certain configuration, the management system includes a controller unit mounted within the interior region of the housing, a display unit coupled to the controller unit and mounted on the exterior of the housing, and at least one monitoring device, coupled with the controller unit, to monitor at least one parameter of the equipment storage rack. Methods of controlling an equipment storage rack are further disclosed.

Abstract: At least one aspect of the invention is directed to a ventilation device. The ventilation device includes a frame configured to be mounted to a barrier, and a plurality of air moving devices configured to be coupled to the frame and configured to draw air from a first side of the barrier to a second side of the barrier. The ventilation unit further includes a control device coupled to the plurality of air moving devices and configured to detect an out of tolerance condition of one of the plurality of air moving devices and control another one of the plurality of air moving devices to increase airflow though the another one of the plurality of air moving devices in response to the out of tolerance condition.