2.2.6 Preamble Message

To aid description, a Preamble Message is defined for an initial record sequence. The Preamble Message can apply to multiple messages, depending on the mode specified.


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VersionRecord

ModeRecord

...

ViaRecord (variable)

...

EnvelopeEncodingRecord (variable)

...

VersionRecord (3 bytes): This field MUST be formatted as specified in section 2.2.3.1.

ModeRecord (2 bytes): This field MUST be formatted as specified in section 2.2.3.2.

ViaRecord (variable): This field MUST be formatted as specified in section 2.2.3.3.

EnvelopeEncodingRecord (variable): This field MUST be formatted as specified in section 2.2.3.4.