B&R Industrial Automation X20BC1083 Bus Coupler

The B&R X20BC1083 is an X20 bus controller (bus coupler) that links X20 I/O modules to a PowerLINK network, serving as the central interface in B&R's X20 I/O system. It provides one POWERLINK interface and an integrated 2-port hub to attach X20 modules, with two expansion slots for additional X20 add-on modules (such as IF or HB modules) to extend the I/O capacity. The unit is designed to work with the X20 bus base and the X20 power supply module, and it exposes access via two RJ45 ports for network connectivity and bus communication. The part number X20BC1083, rev J0, is documented in B&R literature as the X20(c)BC1083 bus controller. Typical applications include automating manufacturing cells, packaging lines, and other equipment where PowerLINK-based I/O is required, providing a single point of connection between the controller and attached I/O modules and supporting module replacement and expansion without changing the core control hardware.