Black Box Question

Hi,

I need to know what is preferred for axis connectors:

(1) A common DB25 connector for all axis step/direction outputs?
(2) A single DB9 connector per axis?
(3) A single IDC (10-conductor ribbon cable conn.) per axis?
(4) Other?

Also:

(1) Wall-wart power supply connector OK?

I will be doing the board layout in 2 weeks, so it would be helpful
to have input on this.

Mariss