Fanuc Series communication board B for 16i/ 18i/ 21i A20B-8100-0263

A20B-8100-0263 is a printed circuit board (PCB) used in CNC control systems produced by FANUC.

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📌 Basic Information

• Part Number: A20B-8100-0263

• Type: Printed Circuit Board (PCB)

• Category: Control / Interface Board

• Used In: FANUC CNC controllers (commonly Series 0i / 16i / 18i / 21i, depending on the machine configuration)

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⚙️ Main Functions

The A20B-8100-0263 board is used for communication and signal processing inside the CNC control system.

Typical functions include:

• Communication between CNC system boards

• Processing machine control signals

• Interface management between different modules

• Supporting the overall CNC controller operation

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🧩 Installation Location

This PCB is typically installed:

• Inside the CNC control cabinet

• On the main control rack / motherboard assembly

• Connected through the FANUC system backplane

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🔎 Related Boards

The A20B-8100 board family includes multiple internal boards used in FANUC CNC systems, for example:

• A20B-8100-0150

• A20B-8100-0261

• A20B-8100-0262

• A20B-8100-0263

• A20B-8100-0660 ~ 0665

These boards typically differ in hardware revision, system compatibility, or machine-specific configuration.

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✅ Simple explanation:
A20B-8100-0263 = FANUC internal CNC control PCB used for signal processing and communication inside the CNC controller. 🔧