Allen-Bradley 1747-AIC Isolated Link Coupler Module

Allen-Bradley 1747-AIC Isolated Link Coupler Module provides isolated DH-485 serial communication between SLC 500 and MicroLogix controllers and attached peripherals, enabling reliable network connections in control panels, manufacturing lines, and automated processes. It provides optical isolation between its ports and supports three ports (RJ-45, mini-DIN, or terminal, depending on version) for flexible connections. The unit can be powered from an external 24 V DC supply or via the connected device, and it mounts on a DIN rail or panel. Operating temperature range is 0°C to +60°C with an IP20 protection rating, and it is certified to CE, UL, and CSA standards. Compatibility includes SLC 500, MicroLogix, and PanelView systems. Common applications involve linking PLCs, HMIs, programming terminals, and network devices where stable data communication and electrical isolation are essential. The module’s function is to act as an isolated serial interface coupler for DH-485 networks; common replacements include Allen-Bradley 1761-NET-AIC Interface Converter, Allen-Bradley 1747-KE DH-485 Module, and Siemens RS485 Isolated Interface Module.