Details: IntelliCom 2-interface adapter fits IntelliFlo VF, IntelliFlo VS-3050, IntelliPro VS 3050 & IntelliFlo VS+SVRS and it requires easy installation low voltage protocol adapter works with Compool and other control systems and draws power from the existing RS-485 communication line and it allows control of four individual speeds or flows controlled by the automation control system. Rated 9-30 V DC with 4 inputs. It can also be used to further expand the number of IntelliFlo pumps being controlled by EasyTouch and IntelliTouch automation control systems. It is compact and affordable. Measures 6-inch length by 3-inch height by 3-inch width.