Allen-Bradley 1756-CNBR is a ControlNet bridge module for ControlLogix systems that provides a redundant link between a ControlNet network and a ControlLogix chassis. It is designed to be installed in a 1756 backplane and supports 40 to 48 ControlNet connections, enabling reliable data exchange between ControlNet devices and the ControlLogix controller. This pre-owned module serves to connect a ControlNet network to a ControlLogix processor, typically used to bring remote I/O and field devices onto the ControlNet network with built-in redundancy.
