The FANUC A20B-8101-0240 is a DeviceNet interface PCB used in compatible FANUC CNC and industrial automation control systems.

This board provides a communication interface between the FANUC controller and compatible devices connected through a DeviceNet network. It supports the exchange of control and status data between the CNC system and related industrial equipment. The product is commonly listed online as a Device Net PCB, DeviceNet interface board, or Device NET I/F board.

Market references associate the A20B-8101-0240 with compatible FANUC i Series CNC systems, including certain 16i, 18i, and 21i configurations. Exact compatibility depends on the controller hardware, installed option boards, software configuration, and DeviceNet interface setup.

It is suitable for DeviceNet board replacement, CNC network communication repair, option-board maintenance, and industrial control-system restoration when the original PCB becomes faulty or can no longer maintain stable communication.

• DeviceNet communication function tested before shipment
  
• Stock available for prompt order processing
  
• Worldwide DHL, UPS, and FedEx shipping

Product Details

• Brand: FANUC
• Part Number: A20B-8101-0240
• Alternative Format: A20B81010240
• Type: DeviceNet PCB / Network Interface Board
• Interface Type: DeviceNet
• Product Series: A20B-8101
• Compatible System Family: Selected FANUC i Series CNC Controls
• Referenced Control Series: FANUC 16i / 18i / 21i
• Application: FANUC CNC and Industrial Automation Systems
• Function: DeviceNet communication and industrial network connectivity
• Category: CNC Communication Board / FANUC Interface PCB

Configuration Note

Some market listings show the A20B-8101-0240 used together with an SST 5136-DNP-104 DeviceNet interface card. The supplied hardware configuration may therefore differ between complete assemblies and individual PCBs.

Before ordering, please confirm:

• Complete FANUC part number and revision
• Original board appearance and connector arrangement
• CNC controller model and installed options
• Whether an SST interface card is required
• Whether the listing includes the complete assembly or PCB only
• Existing DeviceNet software and network configuration

Common Use Cases

• FANUC DeviceNet interface PCB replacement
• CNC DeviceNet communication fault diagnosis
• Replacement of a damaged network option board
• Repair of intermittent or lost industrial network communication
• Restoration of FANUC 16i, 18i, or 21i control equipment
• Preparation of a tested spare for automation maintenance

Sales & Support

Each DeviceNet interface PCB is carefully inspected and tested under applicable conditions before delivery.

Worldwide shipping is available through DHL, UPS, FedEx, and other express carriers. REACO CNC provides PCB repair service, warranty coverage, and technical assistance for FANUC CNC communication boards and control-system components.