SsrCodeManagement

The SSR code management service allows a client to reserve an SSR code for manual assignment later on (i.e. manual assignment by using the Operation setSsr service call), and to clear such code from display in the whole OPS sector.An SSR code reserved for manual assignment is not available for automatic assignment. The SSR code will be reserved during a design parameter time and then released if not manually assigned to any flight plan or released according to the standard release rules if manually assigned to a flight plan during this design parameter time. When an input is made and successfully processed the response to the request is delivered in two parts: • Each input is first replied with the AcknowledgementMessage to indicate the acceptance or rejection of the request. The client is expected to start an internal timer in order to capture those cases where there would be no reply. In case of the latter, the client is expected to trigger a new input. • Secondly, provided the input was accepted, the updated information (as delivered by the SsrCode Distribution service) is sent. As such, subscription to the SsrCode distribution service is mandatory prior the user requesting modifications.