1 -- Module ISO9576-PRESENTATION (X.236)
2 ISO9576-CONNECTIONLESS-PRESENTATION DEFINITIONS ::=
6 -- The value of the SS-user data parameter of the S-UNIT-DATA request and indication
7 -- session-service primitives shall be a UD-type value, followed as a requestor's
8 -- option by zero or more UDC-type values.
11 UD-type ::= SEQUENCE {
12 protocol-version [0] IMPLICIT Protocol-version DEFAULT {version-1},
13 calling-presentation-selector [1] IMPLICIT Calling-presentation-selector OPTIONAL,
14 called-presentation-selector [2] IMPLICIT Called-presentation-selector OPTIONAL,
15 presentation-context-definition-list [4] IMPLICIT
16 Presentation-context-definition-list OPTIONAL,
20 -- Shall be the parameters of the UD PPDU.
22 -- As an initiator's option, the presentation data values contained in a UD PPDU may be
23 -- encoded more than once, using UDC-type values, to allow the transfer of the same
24 -- presentation data values using a number of different transfer syntaxes.
27 UDC-type ::= User-data
28 -- Shall not be present if the Presentation context definition list parameter is not present
29 -- in the UD PPDU. Each instance of this data type shall contain all of the presentation data
30 -- values which were contained in the User data parameter of the UD PPDU.
31 -- This shall be the same set of presentation data values which were contained in the UD-type.
34 -- WS: trunkated here as the rest is present in ISO8823-PRESENTATION.asn.