ABB DSBB175｜Back Plane｜

DSBB175

MXB high-speed backplane bus hub for the entire machine rack
As the main bus carrier inside the rack, it connects CPU controllers, AI/AO/DI/DO various I/O cards, carries real-time control data exchange, and is the communication core of the entire cabinet card; Bus speed matching Advant system standard real-time control timing.
Unified distribution of 24VDC backplane
Centralize the allocation of working power for all plug-in modules in the rack, with built-in current limiting and short-circuit hardware protection. A single I/O failure will not compromise the power supply of the entire rack.
Dual redundant bus channel
Independent A/B dual bus hardware link, supporting redundant hot standby; Single bus disconnection and no control interruption during card insertion and removal meet the high reliability requirements of key devices such as power plants and chemical industries.
Whole machine EMC electromagnetic shielding and grounding busbar
Integrate backplane shielding layer and filtering circuit, unify cabinet shielding grounding nodes, suppress EMI interference from frequency converters and high-voltage equipment, eliminate ground loops, and ensure the accuracy of analog signals.
Hardware bus diagnostic monitoring
Continuously inspect bus short circuits, communication disconnections, and power overload faults, upload fault codes to the main control, and quickly locate rack communication abnormalities; The supporting system comes with a power on self-test process.
Full range I/O compatible plug-in
Perfectly compatible with the full set of Advant OCS analog/digital cards such as DSAO120A, DSBB110A, DSDI, DSAI, etc., and can mix any I/O combination in the same rack.

ABB DSBB175｜Back Plane｜