What board do you recommend for pull/dir for a T3D servo drive?

What should I do to not kill my board?

the 7I75 works and I wouldn't have problems making a mistake?

Yes a 7I75 will work if you have one, the sainsmart BOB is cheaper for just step/dir though

According to my handbook the t3d 20a has encoder output on the db connection. 

I can upload the handbook, too large 

Regards Julian 

Hallo Peter, T3D drivers exist with encoder output also. I have them in one machine, but I have used them in STEP/DIR mode with Mesa, without encoder feedback. Works fine, but I still hope that analog control from LinuxCNC and Mesa is better. Is it right or not? I also have other machine with Simodrive, there is +-10V control, attached to 7I33 - works perfect many years. But T3D has analog control 0-10V Do you know how does this work? Is it possible to control it with analog servo Mesa cards? I am planning to upgrade next CNC milling machine and looking for motors. I would like to use T3D, but milling machine I do not want to run without encoders feedback...