Allen-Bradley 1756-EN2TRXT Ethernet IP Interface Module

Allen-Bradley 1756-EN2TRXT ControlLogix XT Dual-Port Ethernet/IP Interface Module is an EtherNet/IP bridge with an embedded switch for ControlLogix systems. It provides two copper RJ45 ports that operate at 10/100 Mbps, enabling concurrent networks or traffic segmentation within a single module. As part of the ControlLogix XT family, the EN2TRXT is designed for extended-temperature environments, expanding the operating range for installations subject to harsher conditions while preserving compatibility with existing EtherNet/IP devices and the 1756 backplane. The module supports up to 128 TCP connections, making it suitable for connecting multiple I/O devices, controllers, and EtherNet/IP endpoints. In practice, it can serve as a dual-port bridge to create robust network topologies on a ControlLogix rack, including ring and linear configurations, with embedded switch functionality to streamline network design without additional external switches. Typical applications include factory-floor networking where reliable EtherNet/IP connectivity is required across machines, sensors, drives, and remote I/O, especially in environments with temperature extremes or space constraints. The EN2TRXT integrates with Rockwell Automation configuration tools and remains compatible with standard EN2TR-based deployments, offering dependable performance in industrial automation environments that demand both speed and resilience.