= TAA clock

olemus
ISO/IEC 18014: ajaaudiitori kellasüsteem, mida kasutatakase ajaauditiks ja ajaleviks; tegelikes teostustes on igal ajaaudiitoril lisakell varunduseks
= clock system of the time assessment authority,
used for time audit and time dissemination
Note. In the actual implementations, each time assessment authority has more than one time assessment authority clock for back up purposes.