Replacement interface and surge protection board designed for Baseline Inc BaseStation controllers. This direct-replacement assembly restores interface connectivity and adds hardware-level surge suppression to help protect controller electronics from transient voltage events. Compatible with BL-3200X, BL-3200P, BL-1000X, BL-1000P and BL-Substations. Integrated surge suppression components reduce the risk of damage from electrical transients and lightning-induced spikes. Direct-fit connector layout matches original Baseline mounting points for straightforward replacement. Engineered for use inside outdoor-rated controller enclosures and commercial irrigation installations. Sold as a replacement part for interface faults, lightning/surge events, or damaged control electronics. Power down the controller and disconnect mains before beginning any work. Replace the board using the original connectors and mounting hardware; reconnect and test all functions after installation. If you are not comfortable working with low-voltage or line-voltage wiring, have a qualified technician perform the replacement.Verify the replacement part SKU and controller model before ordering. For firmware-related issues or further diagnostic guidance, consult Baseline Inc product documentation or contact a qualified service provider.