R485 – DI821 Digital Input 230V 8 ch Description Description R485 – DI821 Digital Input 230V 8 ch Individually galvanic isolated channels. Use Module Termination Unit TU811, TU813, TU831, TU839, TU851. Related products ABB - 1.3 800xA 6.1 Hardware (3BSE088708/E)3BSE088386R1 Read more ABB - 1.3 800xA 6.1 Hardware (3BSE088708/E)3BSE066490R1 Read more ABB - 1.3 800xA 6.1 Hardware (3BSE088708/E)3BSE088385R1 Read more