Fanuc I/O Link-II board for 16i/ 18i/ 21i A20B-8100-0250

A20B-8100-0250 is a printed circuit board (PCB) used in CNC control systems manufactured by FANUC.

📌 Basic Information

• Part Number: A20B-8100-0250

• Type: Printed Circuit Board (PCB)

• Category: Internal Control / Interface Board

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

⚙️ Main Functions

The A20B-8100-0250 board is used for communication and signal processing inside the CNC control system.

Typical functions include:

• Data communication between CNC modules

• Processing machine control signals

• Interface management between different CNC boards

• Supporting the overall operation of the CNC controller

🧩 Installation Location

This PCB is normally installed:

• Inside the CNC control cabinet

• On the main control rack / motherboard

• Connected through the FANUC system backplane

🔎 Related Boards

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

• A20B-8100-0150

• A20B-8100-0250

• A20B-8100-0261 ~ 0264

• A20B-8100-0271

• A20B-8100-0660 ~ 0665

• A20B-8100-0830

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

✅ Simple explanation:
A20B-8100-0250 = FANUC internal CNC control PCB used for signal processing and communication inside the CNC controller. 🔧