Description
FANUC A20B‑2100‑0785 — Description
Part Number: A20B‑2100‑0785
Manufacturer: FANUC
Product Family: A20B‑2100 series (internal PCB/control boards used in CNC/operator panel modules)
📌 Overview:
The A20B‑2100‑0785 is a main CPU/Interface PCB (Printed Circuit Board) used in FANUC PANEL i terminals — the operator panel/display module inside a FANUC CNC control system. This board acts as the central processing and interface board for the operator panel, linking the LCD display and user inputs (buttons, keys, touch interfaces) with the CNC controller’s electronics.
🧠 Core Function
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🧩 Main CPU/Interface PCB: Handles communication and control between the operator panel display and the CNC controller core.
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📡 Panel Integration: Serves as the central board inside a PANEL i terminal, which means it is not a standalone consumer component — it’s part of the industrial operator interface unit.
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⚙️ Industrial Use: Designed for FANUC CNC machines where a graphic operator interface terminal provides system status, keys, and display feedback.
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🔄 Core Exchange: When acquired through industrial parts resellers, a core exchange is often required (you send your old card back upon purchase).
🛠 Typical Application
This board is typically found in the operator display console (PANEL i) of FANUC CNC controllers. It is a key logic board enabling function and interaction between:
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The LCD screen
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Keypad or soft keys
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Internal communication back to the controller’s main CPU
It plays a critical role in ensuring that the machine’s graphical interface and user commands are correctly processed by the CNC system.
📌 Summary
➡️ A20B‑2100‑0785 = PANEL i Terminal Interface Main CPU PCB — main logic board for the FANUC operator panel display, translating and managing display and input signals between the panel and the controller electronics.