I'm using a Allen Bradley 1746-NO4I analog output card in a 7 slot chassis and noticed in the cards manual that the 1746-P2 power supply does not meet the spec. Should I be using a linear or switchmode power supply to power the card? I also want to use this power supply to provide loop power for 4-20mA analog inputs on a analog input card. I know it's better to use linear supplies for analog inputs.