A terminal includes first and second communication modules for communicating with a personal device for performing transactions, called a transactional device. The first communication module includes a contact reading interface, and the second communication module includes a contact-free reading interface. The terminal also includes a detection module including: at least one transactional device position sensor, delivering an item of data representative of a position of a transactional device relative to the terminal; and at least one control module for controlling at least one communication module of the first and second communication modules, the at least one control module activating the communication module on the basis of the item of data representative of the position of the transactional device.