For those with a PSIM-1 I posted a little program that scales the output of the 249e and 225e to 1v/oct so they can be used with other 1v/oct gear. The 200e seems to use something like 1.15v/oct. Strangely the output of the 249e when one swaps between pitch in notes and in cv displays notes as 1.20 v/oct however the actual voltage it is putting out is less than that. If you hit the stop button on the PSIM-1 it will scale the listed voltage on the 249e to 1 v/oct as well. I'm sure you could do similar scaling with the mixer technique Cuari mentioned earlier or with the new 256e module.
Message
225e and 249e output scaling program for PSIM-1
2005-10-09 by wiardmodular