The Allen-Bradley 1747-AIC is an Isolated Link Coupler designed for the Allen-Bradley SLC 500 Programmable Logic Controller (PLC) system. This panel-mounted communication module enables reliable isolation and connection between SLC 500 controllers, programming workstations, and DH-485 networks. The 1747-AIC supports both fixed and modular style SLC 500 hardware, providing flexible communication options and improved network stability. Ideal for industrial automation and process control environments, the Allen-Bradley 1747-AIC ensures safe, noise-free data transmission and dependable system integration within SLC 500 PLC networks.