Description Description S220 – TB842 Modulebus Optical Port Used together with CI801 and CI840, connected via TB806 or TB846. Related products ABB - 1.3 800xA 6.1 Hardware (3BSE088708/E)3BSE088382R1 Read more ABB - 1.3 800xA 6.1 Hardware (3BSE088708/E)3BSE053241R1 Read more ABB - 1.3 800xA 6.1 Hardware (3BSE088708/E)3BSE088386R1 Read more