Power Cube
Power cubes are an external power supply, used as a sole means of power for the
first-generation telephone offerings. Power cubes can be used by second-generation
telephones as a sole means of power, or more commonly, can be used as a
backup power supply to the inline power patch panel and the inline power modules.
The advantage to this solution is that, when used with inline power, it provides
a redundant power supply for your IP telephone.When used solely as a
means of power, its advantage is that you can deploy IP telephones and not have
to replace your switches or install inline power patch panels for power.The major
disadvantage is that you must provide a power outlet for each cube, and it adds to
the mass of cables around a user’s desk