Patent ID: 7849335

Claim:
An uninterruptible power supply (UPS) controller comprising: a power output module operable to couple input power received from a first UPS to an information handling system; and a communication enabled power interface operable to receive the input power from the UPS using a first power cable coupled to the first UPS, the communication enabled power interface further operable to separate the input power and a communication received from the first UPS, to broadcast a maximum power availability request to a plurality of UPSs including the first UPS, to receive a response to the maximum power availability request from each of the plurality of UPSs, to determine, in response to the maximum power availability request, whether the information handling system can make a low power adjustment, if the information handling system cannot make the low power adjustment, pausing an initialization of the information handling system, and sending a warning message indicating that the initialization of the information handling system is paused, and otherwise, completing the initialization of the information handling system.