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 |
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ViaRecord (variable) |
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EnvelopeEncodingRecord (variable) |
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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.