A20B-8201-0030 FANUC Multiplexer Add-On PC Board

The A20B-8201-0030 is a FANUC PC board, commonly described as a multiplexer add-on board. It is used in compatible FANUC CNC or industrial control equipment as an electronic board component for signal expansion, signal selection, or related control functions depending on the original system configuration.

This model is supplied as a FANUC PC board / multiplexer add-on board, not a complete CNC control system or complete drive unit. The provided description also includes 20A, which should be confirmed against the original board label and machine configuration before replacement.

Worldwide Shipping & REACO CNC Service

• Worldwide Shipping: We can ship worldwide by DHL, UPS, FedEx, or other available logistics channels.
• Fast Handling: In-stock items can usually be shipped within 1-2 working days after payment.
• 100% Tested Before Delivery: Each qualified PC board is tested or checked before shipment. Product photos or a test video can be sent before delivery when required.
• REACO Warranty: New or refurbished products usually include a 1-year warranty, and used 90% new products usually include a 3-month warranty.
• Free Technical Support: Our team can help with basic model confirmation, board matching, and replacement guidance.

Product Information

Product Application

The FANUC A20B-8201-0030 multiplexer add-on board is mainly used for compatible FANUC CNC or industrial control equipment maintenance. It may be required when the original board is damaged, unstable, burnt, corroded, or causing signal-related, control-related, or communication-related faults.

Because this is a board-level component, replacement should be carried out after confirming the original board number, machine configuration, connector layout, related system model, and alarm details.

Quality Control and Testing

For FANUC PC boards and multiplexer boards, careful checking is very important before shipment because PCB condition may directly affect signal processing, control stability, communication, and machine operation. REACO CNC checks qualified products carefully and can provide real product photos or a test video before delivery when required.

Our goal is to help customers receive reliable CNC spare parts with clear product information, careful inspection, responsive after-sales support, and practical technical assistance.

Compatibility Confirmation

Before ordering, please confirm that the full board number on your original PCB is A20B-8201-0030. Similar FANUC boards may have different hardware versions, connector layouts, applicable CNC systems, add-on functions, or compatibility requirements.

If you are not sure whether this FANUC multiplexer add-on board is suitable for your machine, please send photos of the original board label, connector side photos, CNC system or machine model, related drive or control unit model if available, and alarm information. REACO CNC can help check the details before purchase.

FAQ

Q: What is A20B-8201-0030?

A20B-8201-0030 is a FANUC PC board, commonly described as a multiplexer add-on board.

Q: Is A20B-8201-0030 a complete CNC system?

No. A20B-8201-0030 is a PC board / PCB component, not a complete CNC control system or complete drive unit.

Q: What is the function of A20B-8201-0030?

This model is described as a multiplexer add-on PC board. The exact function should be confirmed according to the original machine configuration and board installation position.

Q: What does 20A mean in the product description?

The provided product information includes 20A. Please confirm this specification with the original board label and machine configuration before replacement.

Q: Can REACO CNC test this FANUC PC board before shipment?

Yes. REACO CNC tests or checks qualified PC boards before delivery. Product photos or a test video can be sent before shipment when required.

Q: What warranty does REACO CNC provide?

For new or refurbished products, REACO CNC usually provides a 1-year warranty. For used 90% new products, the warranty is usually 3 months. The final warranty term depends on the quotation and order condition.

Q: Can you help confirm compatibility before purchase?

Yes. Please send the original board photos, full board number, connector side photos, CNC system or machine model, related unit model if available, and alarm details. We will help check whether this model is suitable for your machine.

Q: Do you also provide FANUC PCB repair service?

Yes. REACO CNC provides FANUC PCB sales and repair support. If your original board is faulty, you can contact us for replacement or repair options.