CONEC has developed L-filter adapters. These filter adapters are used to eliminate or reduce radiated and conducted interference. The adapters can easily be installed external or inside enclosures. The adapters are supplied with UNC 4-40 or M3 jackscrews. Pin configurations are 9, 15, 25 and 37 positions and are D-Sub compatible. Contacts are screw machine type, made from copper alloy and are gold plated, several plating options are available.