The IntelliComm II 521109 interface adapter provides automatic control of IntelliFlo® VF , IntelliFlo VS and IntelliPro® pumps. IntelliComm II is compatible with IntelliTouch®, EasyTouch®, SunTouch®, Compool®, Hayward®, Jandy® and Polaris® EOS control systems. The IntelliComm II Interface adapter provides: Four input (9-24V DC/AC) program terminals (GPM/RPM 1, 2, 3, and 4) for connection to any available auxiliary relay, valve actuator or controlled output circuit on the automation control system circuit board. Typically, GPM/RPM 1 connects to the output Filter Pump relay terminal plug. You can also connect to the spa, pool electric heater, solar or 2-speed pump output circuit. Each of the four inputs can be used to control the IntelliFlo pump's speed or flow.