EUROCAE, ED-228A, Safety and Performance Requirements Standard for Baseline 2 ATS Data Communications (Baseline 2 SPR Standard)

This standard provides the operational, safety, and performance requirements (SPR) for the implementation of data communication services that support air traffic services (ATS). https://eshop.eurocae.net/eurocae-documents-and-reports/ed-228a/# - 2016