The Allen-Bradley 1756-CN2R is a ControlNet communication module within the ControlLogix controller platform, designed to provide reliable and high-speed network connectivity. It features two (2) BNC ControlNet ports supporting a transmission speed of 5 Mbps, allowing for redundant network topologies that enhance system reliability. Additionally, the module includes one (1) USB communication port capable of 12 Mbps data transfer for efficient configuration and diagnostics. Supporting up to 128 Logix connections, the 1756-CN2R ensures robust and scalable communication performance for complex automation systems.