Description
x📌 FANUC A20B‑2100‑0691 — General Classification
This part number belongs to the FANUC A20B‑2100 series, which is a family of internal printed circuit boards (PCBs) used in CNC control electronics and operator panel interface modules. Boards in this family generally handle control logic, I/O interfacing, panel communication, or signal processing inside the CNC controller or panel cabinet.
Parts in this series (e.g., A20B‑2100‑0421, A20B‑2100‑0761, etc.) are typically described as Operator Panel I/O PCBs or similar control interface boards — meaning they provide communication between operator panels and the main controller logic within FANUC CNC systems.
⚙️ Likely Function
While specific documentation for A20B‑2100‑0691 wasn’t found publicly, FANUC parts with adjacent numbers in the 2100 sequence are commonly:
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Operator Panel I/O interface boards — linking the operator control panel (buttons, display signals) to the controller’s backplane.
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Internal control logic PCBs — processing panel inputs/outputs and communicating with the CPU and I/O system.
🛠 Typical Use Cases
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Installed inside the CNC control cabinet as part of the logic/interface stack.
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Works with older FANUC control platforms (e.g., Series 15/16/18/21 controllers), where modular PCBs connect operator panel hardware with control logic.
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Helps translate operator panel signals (keys, indicators) into data the CNC CPU processes.
🧠 Notes
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Parts in this family are often sold used/refurbished due to the legacy nature of the equipment they serve.
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Precise function, pinout, and compatibility are best confirmed via the specific machine’s service manual or FANUC support documentation.
Additional Information
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Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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