Home and building electronic systems (HBES). Media independent layers. Transport layer, network layer and general parts of data link layer for HBES Class 1|Automatic control systems, Domestic facilities, Domestic, Domestic electrical installations, Electronic equipment and components, Electrical household appliances, Data link layer (OSI), Network layer (OSI), Transport layer (OSI), Open systems interconnection, Data processing, Data handling, Data organization, Interfaces (data processing), Building services