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.....so I spliced the end on a viola working CSU. [/QB]
That is an interesting fiddle. Did you mean to write "...so I spliced the end on and voila a working CSU" perhaps?

I will not try to figure out all the acronyms in your communique. It is intersting that the power supply for a VOIP phone would be 48v. I think most of the newer ones use 5 volts. Of course a lot of telecom equipment accepts 48 volts DC power. This is the voltage of the batteries in the telco central office, so it became a standard to power the equipment found in racks there. Note this is DC not AC.

Vaya con Dios amigos!
Butch