Jandy IAquaLink 3.0 Network Interface Module (WiFi Antenna) – IQ30-A. This device is the transmitter/receiver for the IAqualink system. It requires connection to an IAqualink motherboard. This is usually characterized by 2 red 4-pin connectors, commonly called RS-485, on the upper left of the board. The board must be flashed to a non-PDA. If this is connected to a PDA board, it will still give wifi control of the main pump. But, it will be limited in function.