Allen-Bradley 1756-EN2T Ethernet Bridge Module

Allen-Bradley 1756-EN2T Ethernet Bridge Module is a two-port EtherNet/IP bridge/scanner for ControlLogix that plugs into a 1756 backplane to connect a Logix controller with devices on an external Ethernet network, enabling high-speed data exchange between networks. It supports up to 128 TCP connections and up to 256 CIP connections, and operates over 10/100 Mbps copper Ethernet interfaces. The module includes USB interfaces for backplane and Ethernet configuration, with a continuous isolation voltage rated at 30V (basic insulation), and is part of the Series 2 D family (catalog number 1756-EN2T), with related variants such as EN2TR (redundant) and EN2TP (Parallel Protocol). This is a dedicated Ethernet bridge rather than a switch, designed to bridge communications between a ControlLogix network and external Ethernet devices while preserving deterministic PLC traffic.