Most of old servo machines have resolvers for axis positioning .
New RES3 module is intendend to be interface between MACH3 and axis amplifier .
It can accept pulse input from parallel port for direction and speed, provide supply for resolver and output analog signal 10VDC (positive and negative  ) for axis amplifier.
Contain and PID regulator .
All parameters could be adjusted via RS232 input or RS485 bus  .
Tested with Fadal VMC.
If there is any interest contact me on
info@dizalice.net