An information exchange system comprising at least one network for the transmission of information, at least one system computer accessing said at least one network, at least one peripheral device for exchanging said information with said at least one system computer, said at least one peripheral device being of sensor or actuator type and having no communication interface with said at least one network, at least one data concentrator associated with at least one associated peripheral device, accessing said at least one network and enabling said associated peripheral device to exchange said information with said at least one system computer, said data concentrator comprising data processing means, network interface means for interfacing said data processing means and said at least one network and device interface means for interfacing said data processing means and said at least one associated peripheral device, said information exchange system further comprising connection means for connecting said at least one associated peripheral device to said device interface means or said at least one network to said network interface means, said connection means comprising a connector, cable or connector accessory type connection element in which said data concentrator is incorporated in such a way as to be separable from said at least one associated peripheral device by disconnection from said connection element.