DS DS/EN 50090-4-1
DS DSEN 50090-4-1 2004-APR-05 Home and Buldng Electronc Systems HBES - Part 4-1 Meda ndependent layers - Applcaton layer for HBES Class 1
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This part of the EN 50090 specifies the services and protocol of the application layer for usage in Home and Building Electronic Systems. It provides the services and the interface to the user process as defined in EN 50090-3-2. This procedure is based on the services and the protocol is provided by the Transport Layer, Network Layer and Data Link Layer as specified in EN 50090-4-2.