IEC 60839-7-4:2001

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• Alarm systems - Part 7-4: Message formats and protocols for serial data interfaces in alarm transmission systems - Common transport layer protocol

  Description:

  Specifies the transport layer message structure, formats and transmission procedures toe used at standard interfaces in alarm transmission systems. Shoulde used at all such interfaces where equipment from one supplier is intended to inter-work with equipment from other suppliers, and where the underlying system architecture does not provide the necessary facilities to support the common application layer.

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