ABB TB807 Modulebus Terminator: Reliable Termination for S800 I/O By wayne No Comments on ABB TB807 Modulebus Terminator: Reliable Termination for S800 I/O 3 Min Read Explore the ABB TB807 Modulebus Terminator (3BSE008538R1) for reliable S800 I/O system termination. Key specs, applications, and maintenance insights for engineers.