Abstract: A system having a plurality of tracing interface modules that attach to the patch panels of a telecommunications patching system in a telecommunications closet. On the patch panels in a telecommunications closet are located a plurality of connector ports that receive the terminated ends of patch cords. The tracing interface modules mount to the patch panels and provide a mechanical sensor that can detect when a patch cord connector has been added to, or removed from, a connector port within the telecommunications closet. Accordingly, by connecting a computer controller to the various mechanical sensors, the computer can monitor and log all changes to the patch cord interconnections in an automated fashion.