Protect Any, Drop,replaces ground block. Application Features        Systems connect several drop components with cable on the side of the subscriber’s home. The standard collection of units is a ground block or surge suppressor, a splitter or directional coupler followed by a high pass filter or a window filter. These units are interconnected with coaxial cables. The DIU replaces these collections of individual components with a single unit.  Set top boxes Modems Subscriber Electronics Drop amps Drop passives DLPS-DIU-15D Digital Interface Unit     Solid state surge protection,     for reliability and durability     Digital splitter     Directional coupler     SMD components,     more precise specs.     High-Pass filter or window filter     UL approved