Abstract: A cable for monitoring current and voltage includes a plug, a socket, first and second conductors extending from the plug to the socket, a current and voltage monitoring module, a transceiver, and a housing. The current and voltage monitoring module is coupled to the first and second conductors, and is configured to measure current and voltage usage levels of the conductors. The transceiver is coupled to the current and voltage monitoring module and is configured to receive data related to the current and voltage levels and transmit the data related to the current and voltage levels. The housing is configured to house the current and voltage monitoring module, the transceiver and one of the socket and the plug.

Abstract: According to one aspect, embodiments of the invention provide a power supply system comprising an input line configured to receive input AC power, a rectifier having an input coupled to the input line and an output, a switch having a first end coupled to the output of the rectifier and a second end selectively coupled to an inductor, a capacitor coupled to the inductor, and control circuitry coupled to the inductor and the capacitor, wherein the control circuitry is configured to control the switch to selectively couple the output of the rectifier to the inductor to generate a first DC power level, operate in a first mode of operation while receiving the first DC power level, detect a phase angle of the rectified AC power, and transition into a second mode of operation in response to detection of the phase angle.

Abstract: A method and system for locating a device in a data center are pro vided. The method includes receiving a signal from the device at a master antenna (102) unit positioned on a datacenter rack (100), wherein the master antenna unit includes a first antenna and a second antenna (112a), receiving the signal at a first child antenna (112b, 112c) unit positioned on the datacenter rack, wherein the first child antenna unit (106) includes a third antenna (116a) and a fourth antenna (116b), comparing a relative strength of the signal of the first and second antennas to determine a first angle relative to a first ax is, comparing the relative strength of the signal at the third and fourth antennas to determine a second angle relative to the first axis, and determining a device location in the equipment rack using the first and second angles. The device location may be determined using tri-angulation.

Abstract: A cable for monitoring current and voltage includes a plug, a socket, first and second conductors extending from the plug to the socket, a current and voltage monitoring module, a transceiver, and a housing. The current and voltage monitoring module is coupled to the first and second conductors, and is configured to measure current and voltage usage levels of the conductors. The transceiver is coupled to the current and voltage monitoring module and is configured to receive data related to the current and voltage levels and transmit the data related to the current and voltage levels. The housing is configured to house the current and voltage monitoring module, the transceiver and one of the socket and the plug.

Abstract: A battery monitor for use with a battery includes an input configured to receive a voltage from the battery, an analog to digital converter (ADC) coupled to the input and configured to convert analog voltages received through the input into digital indications of levels of the analog voltage, and a processor coupled to the ADC to receive the digital indications of the levels of the analog voltage of the battery and configured to manipulate the received digital indications to reduce inaccuracies introduced by the ADC in the received digital indications of the levels of the analog voltage relative to actual levels of the analog voltage during discharge of the battery, the processor being further configured to provide an output indicative of a determined level of the analog voltage.

Abstract: A battery monitor for use with a battery includes an input configured to receive a voltage from the battery, an analog to digital converter (ADC) coupled to the input and configured to convert analog voltages received through the input into digital indications of levels of the analog voltage, and a processor coupled to the ADC to receive the digital indications of the levels of the analog voltage of the battery and configured to manipulate the received digital indications to reduce inaccuracies introduced by the ADC in the received digital indications of the levels of the analog voltage relative to actual levels of the analog voltage during discharge of the battery, the processor being further configured to provide an output indicative of a determined level of the analog voltage.

Abstract: A battery monitor for use with a battery includes an input configured to receive a voltage from the battery, an analog to digital converter (ADC) coupled to the input and configured to convert analog voltages received through the input into digital indications of levels of the analog voltage, and a processor coupled to the ADC to receive the digital indications of the levels of the analog voltage of the battery and configured to manipulate the received digital indications to reduce inaccuracies introduced by the ADC in the received digital indications of the levels of the analog voltage relative to actual levels of the analog voltage during discharge of the battery, the processor being further configured to provide an output indicative of a determined level of the analog voltage.