AutoCAD Electrical: Fan In Fan Out Explained — Source & Destination for Wire Bundles

Understanding how Fan‑In and Fan‑Out work in AutoCAD Electrical is essential when documenting multicore cables, shared signal paths, and real‑world wiring systems where multiple conductors merge and then split again. In this tutorial, we take a clear, practical look at how to use Fan‑In (Source) and Fan‑Out (Destination) commands to accurately represent these wiring behaviours in your schematics. We show how a multicore cable can feed several individual wires into a single signal path, and then branch back out again. You’ll see how to apply Fan‑In and Fan‑Out symbols correctly, how AutoCAD Electrical interprets these connections, and how wire numbers and cable tags are maintained throughout the process. The tutorial also covers how cable markers interact with Fan‑In and Fan‑Out, including when to use extra cable markers, how to keep your cable tag consistent across the drawing, and how to ensure each core is correctly associated with its source and destination. We also look at how source and destination arrows help maintain continuity across pages and how they tie into your cable reporting workflow. We walk through a detailed, realistic example using a multicore cable, complete with wire numbers, cable markers, and fan‑in/fan‑out behaviour, giving you a clear understanding of how to document complex cable routing in a clean, professional, and standards‑compliant way. This tutorial is part of the structured AutoCAD Electrical learning series designed to help you build real‑world skills in schematic design, cable documentation, wire management, intelligent symbols, and professional reporting workflows.