What Problems Does the Allen Bradley 1769-CJC Solve? Industrial automation systems rely on stable communication between controllers and expansion modules. Even the most advanced PLC can experience performance issues if its communication path is interrupted. That is where the Allen Bradley 1769-CJC plays an important role. Although it is a compact component, it helps maintain reliable communication between CompactLogix systems and their connected I/O modules...... Read more: https://www.asteamtechno.com/allen-bradley-1769-cjc/