The switch allows a redundant power supply in addition
to its local power supply. Only one power source can be
supplying power to a unit.
absent(1) :the redundant power supply is not connected
to the switch.
connectedFunctional(2) : the redundant power supply is
connected to the switch and operational.
connectedNotFunctional(3): the redundant power supply
is connected to the switch, but cannot supply
power to the system.
functionalPrimaryFailed(4): the redundant power supply
is installed, powered on, and operational,
but a failure exists in the local power
supply system.