Création de symboles graphiques utilisables dans la documentation technique de produits — Partie 3: Classification des noeuds de connexion des réseaux et leur codage

This part of IEC 81714 specifies requirements concerning the classification of connect nodes assigned to graphical symbols, being a representation of functional and product concepts. Due to the strong interrelation between the product and its corresponding graphical representation, identical classification principles are applied for both the classification of connect nodes of products as well as for the classification of networks and their representation by graphical symbols in computer-aided systems