Description
A20B‑2001‑0590/11 Fanuc Refurbished – Related FANUC backplane boards help illustrate this family of parts. Now, the specific description you asked for:
📌 FANUC Part A20B-2003-0490 — Description
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Part Number: A20B-2003-0490
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Product Family: A20B-2003 series PCBs for FANUC modular control systems
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Description: 2 SLOT BACK PANEL / BACKPLANE PCB — a printed circuit backplane board with two slots.
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Function: Provides a mechanical and electrical interface inside a FANUC control rack, allowing two plug-in modules (control cards/PCBs) to be securely mounted and interconnected.
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Use Case: Typically installed in industrial CNC controllers, automation cabinets or other FANUC modular electronics systems where PCBs need to be mounted and interconnected via a backplane. It supports power and signal distribution between boards housed in the controller chassis.
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Series Role: Part of the A20B-2003 backplane/back panel family of boards.
🧩 Key Notes
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Backplane/Back Panel Role: Backplane boards like this serve as the backbone in modular control systems — enabling communication and power distribution between the main controller and various expansion modules.
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Slot Count Meaning: “2 slot” indicates how many expansion modules/cards it can physically accept — in this case, two.
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Compatibility: Designed specifically for systems using the FANUC A20B-2003 family of boards and compatible chassis.
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Typical Availability: Often found new, refurbished, or surplus through industrial parts suppliers; repair may be offered depending on vendor.