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X'FF' NO ACCEPTABLE METHODS
syntax X'hh' is used to denote the value of the single octet
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Unless otherwise noted, the decimal numbers appearing in packet- format diagrams represent the length of the corresponding field, in octets. Where a given octet must take on a specific value, the syntax X'hh' is used to denote the value of the single octet in that field. When the word 'Variable' is used, it indicates that the corresponding field has a variable length defined either by an associated (one or two octet) length field, or by a data type field.
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