Patent ID: 7944082

Claim:
A device comprising: a connection module comprising: a number of ports, where each port is to selectively receive a connection from one of an alternating current (AC) power supply system or a direct current (DC) power supply system, without changing connections provided by the ports, where each port includes a predetermined number of pins, where a first number of pins, of the predetermined number of pins, that receives power from and returns power to the DC power supply system is different than a second number of pins, of the predetermined number of pins, that receives power from and returns power to the AC power supply system, and where, without changing connections provided by the connection module, the connection module provides M+1 redundant power from AC power supply systems to a plurality of field replaceable units (FRUs), when the predetermined number of pins, of the ports, are connected to the AC power supply systems, or N+N redundant power from DC power supply systems to the plurality of FRUs, when the predetermined number of pins, of the ports, are connected to the DC power supply systems.