ATMRcncltnAdvc
                Mandatory
                Hdr
                Mandatory
                PrtctdATMRcncltnAdvc
                Optional
                ATMRcncltnAdvc
                Optional
                SctyTrlr
                Optional
                CnttTp
                Mandatory
                Authenticated Data
AuthntcdData
                Mandatory
                Definition: Data protection by a message authentication code (MAC).
Type: AuthenticatedData4
Vrsn
                Optional
                Rcpt
                Repetition (1..n)
                MACAlgo
                Mandatory
                NcpsltdCntt
                Mandatory
                MAC
                Mandatory