ABB | DSBC173A 3BSE005883R1 | Bus Extender S100 I/O Bus

Product Description:

S100 I/O Bus Extension redundancy is available. In this case each I/O rack contains two bus extenders. Each bus extender is connected to one processor module. The bus extenders that is connected to the primary processor module is acting as primary, the others are backup (hot stand-by). A faulty bus extender causes a processor module changeover by stopping the primary processor module. The previous backup processor module is now acting as primary processor module and previous backup bus extenders, connected to the new primary processor module, are primary bus extenders.
S100 I/O is the group of input and output boards located in the I/O subrack. The I/O subrack communicates with the controller subrack using Bus Extension to S100 I/O. Single and redundant Bus Extension to S100 I/O are available. Redundant S100 I/O Bus Extension requires redundant processor module. Electrical and optical bus extensions are provided. 

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