This object is used to configure the POE power redundancy
mode for this power source equipment.
A value of none(1) - means that all available power can be
allocated to powered devices.
A value of nPlus1(2) - means that one of the highest power
supplies is held in reserve and that in the event of a
single power supply failure, no powered devices will be
shut down.
A value of full(3) - means that half of the available power
supplies are held in reserve.
The default value is none(1).