Description Description S230 – TU840 Termination Unit for 1+1 TB840 Support for redundant I/O. Including: – 1 pcs Power Supply Connector – 2 pcs TB807 Modulebus Terminator Related products ABB - 1.3 800xA 6.1 Hardware (3BSE088708/E)3BSE088386R1 Read more ABB - 1.3 800xA 6.1 Hardware (3BSE088708/E)3BSE082895R1 Read more ABB - 1.3 800xA 6.1 Hardware (3BSE088708/E)3BSE076355R1 Read more