To the best of my knowledge (very limited, as John Moore will tel you) the Capliano helm pump is a 'manual only' type unit. (with adjustable swept volume)
The Helm pumps most commonly used with powered setups are the Char-Lynn pumps with origins in tractors, trucks, fork lifts etc (I have a Char Lynn on my boat)
What exactly is it you want to do/ connect up? and what power steering pump are you using? electric?
The model of Helm pump needs to be matched to the steering rams you have, ie, swept capacity and number of rams driven, so you can get the desired number of turns lock-to-lock, usually between 2 and 3 for a powered setup.
"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013