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NZS/ISO 7809:1984ADD1

Information processing systems - High-level data link control procedures - Consolidation of classes of procedures (= AS 2751-1985): Amendment 1

Enhances NZS/ISO 7809 (AS 2751) by reflecting the broadening of the definition to the Un-numbered Information (UI) command/response function to allow its use in both operation and non-operational modes of operation. Clarifies the fact that a command frame may be transmitted simultaneously to more than one, or all, of the stations in a multipoint configuration through the use of a few corrections to improve understanding and remove ambiguities.

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