CI-14 CAT interface module is designed to simplify and reduce cost of installation of Leica Geosystems 2D and 3D machine control systems on certain Caterpillar machines. No add-on hydraulic valves are required on K and T Series crawler dozers or M Seriesmotorgraders; the CI-14 is plug-in installation. No Caterpillar SEA license activation fee is required, the company says.