-- Module ISO9576-PRESENTATION (X.236)
ISO9576-CONNECTIONLESS-PRESENTATION DEFINITIONS ::=
BEGIN

--
-- The value of the SS-user data parameter of the S-UNIT-DATA request and indication
-- session-service primitives shall be a UD-type value, followed as a requestor's
-- option by zero or more UDC-type values.
--

UD-type ::= SEQUENCE {
	protocol-version [0] IMPLICIT Protocol-version DEFAULT {version-1},
	calling-presentation-selector [1] IMPLICIT Calling-presentation-selector OPTIONAL,
	called-presentation-selector [2] IMPLICIT Called-presentation-selector OPTIONAL,
	presentation-context-definition-list [4] IMPLICIT
	Presentation-context-definition-list OPTIONAL,
	user-data User-data
}

-- Shall be the parameters of the UD PPDU.
--
-- As an initiator's option, the presentation data values contained in a UD PPDU may be
-- encoded more than once, using UDC-type values, to allow the transfer of the same
-- presentation data values using a number of different transfer syntaxes.
--

UDC-type ::= User-data
-- Shall not be present if the Presentation context definition list parameter is not present
-- in the UD PPDU. Each instance of this data type shall contain all of the presentation data
-- values which were contained in the User data parameter of the UD PPDU.
-- This shall be the same set of presentation data values which were contained in the UD-type.
--

-- WS: trunkated here as the rest is present in ISO8823-PRESENTATION.asn.

END