H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
H04Q9/06—Calling by using amplitude or polarity of DC
Circuit electrique comportant un commutateur a touche et un relais associe pour l'actionnement de l'avertisseur lumineux et pour la commutation " code-phare " de l'eclairage d'un vehicule automobile