1. A data processing device comprising: a display configured to display alarms; a processor configured to receive, from an item of equipment in a communications network, primary data defining events in at least one primary data format and delivering to a management device in said network secondary data defining the alarms representing said events, in a secondary data format, wherein said processor comprises an interpreter which is provided with a plurality of conversion rules, arranged in the form of scripts that are interpreted by the interpreter and are associated with a plurality of different primary data formats, and arranged so as to convert, by means of said rules, the primary data received in one of said primary data formats into secondary data in said secondary data format which can be processed by said management device, said interpreter further arranged to deduce alarm parameters from certain primary data received, so as to deliver a parameterized alarm to said management device, wherein, when the alarm state of the item of equipment in the network is unknown, said interpreter is arranged to extract from said item of equipment chosen information able to allow determination of said alarm state, and then to simulate the sending of primary data representing said state information, so as to generate an alarm intended to indicate to the management device the alarm of said item of equipment, and wherein each of the plurality of different primary data formats corresponds to a particular script.