Delta Tau is now in the design of amps.
All we use is Delta Tau PMAC Lite and PMAC Pc's on the EDM's we build. Most of the cnc's in our shop use the same.
There are new products emerging every day.
consult your local listing
here is another plot to make this soup even thicker.
look at a contact block (I have a furnas 64BB and 64BA)
The Green color is on the bottom of a N/O contact and the Red color is on the bottom of a N/C. A&B uses the same color also. Soooo by looking at this I would belive
Red = N/C = RUN or...