Model: The signal has an integrated electronic signal circuit and 1 separate signal decoder. Control of all functions is possible in the digital system with the signal decoder included with the signal, or in conventional operation with a 72760 control box. The signal decoder can be installed under C Track or under the layout. For digital operation, the configuration and the address can be assigned and tested before the installation of the signal. Connections for controlling train movements and for 1 distant signal are on the signal decoder. Height without base 78.0 mm /3-1/16".