Description
Description:
The A20B-0279-C002 is a control unit cabinet/backplane assembly (specifically a 2-slot backplane/rack) used in FANUC Series 0i/0i-Mate CNC controllers. It is the structural chassis that houses and supports up to two plug-in printed circuit boards (PCBs) used in the controller.
Function & Purpose:
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🛠️ Backplane/Chassis: Provides the physical framework and electrical connection interface for 2 plug-in modules (such as power supply, main CPU board, I/O boards, HSSB interface cards, display boards, etc.) in a FANUC control unit.
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🔌 Electrical Connector Interface: Supplies slots and bus connections so that the internal PCBs communicate and receive power correctly.
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🖥️ Typical Usage: Found in smaller control units like the Series 0i/0i-Mate models where modular electronics plug into this backplane assembly.
Where It Fits:
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This backplane is typically part of the control unit cabinet — the enclosure in which the CNC’s electronic boards are mounted.
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Commonly paired with main boards (like A16B-3200 series) and other interface boards to form the complete CNC control system.
Related Notes:
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FANUC part number lists and catalogs show A20B-0279-C002 as the “Control unit cabinet, 2 slot” for Series 0i-A equipment.
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It is a mechanical/electrical backplane piece, not a processor or display by itself — it simply houses other electrical boards.