Description
x📌 FANUC A20B‑8100‑0334 — RS‑232 Serial Communication PCB (RB/DNC2)
What it is:
The FANUC A20B‑8100‑0334 is a serial communications printed circuit board (PCB) used in FANUC CNC controller systems to provide RS‑232 data transfer functionality. It’s part of the A20B‑8100 series of optional interface and expansion cards that can be installed in modular FANUC controls to add or extend communication capabilities.
Primary Function:
-
📡 RS‑232 Serial Communication Interface: This board implements an RS‑232 (RB/DNC2) communication port on the CNC controller, enabling serial data exchange between the CNC and external devices (such as a PC, modem, or other serial equipment) for program transfer, diagnostics, or DNC operations.
-
🧑💻 DNC2 Support: Often labeled as DNC2/RS‑232, it supports FANUC’s DNC2 communication protocols commonly used for direct numerical control data transfers.
Where it fits:
-
📌 This module is typically installed in a controller’s mini expansion slot or dedicated communication slot on the main PCB/backplane.
-
It is not a standalone controller — it’s an add‑on board used to enhance communication options in systems like FANUC 16i/18i/21i and other modular i‑Series controls which allow optional interface cards.
Typical Use Cases:
-
🔁 Program Upload/Download: Transfer CNC part programs, parameters, and configuration files between the machine and an external PC or server.
-
📊 Diagnostics & Monitoring: Serial communications for third‑party software, monitoring tools, or legacy equipment that uses RS‑232.
-
📟 Integration with DNC: Connects to Distributed Numerical Control (DNC) systems where programs are fed from a central computer to the machine.
Installation Notes:
-
🛠️ Core Exchange: Typically supplied via core‑exchange from parts distributors (return old board in exchange for a refurbished/new one).
-
🧰 Repair options vary by vendor — some may not offer board‑level repair.
Additional Information
xNam tempus turpis at metus scelerisque placerat nulla deumantos solicitud felis. Pellentesque diam dolor, elementum etos lobortis des mollis ut risus. Sedcus faucibus an sullamcorper mattis drostique des commodo pharetras loremos.Donec pretium egestas sapien et mollis. Pellentesque diam dolor cosmopolis etos lobortis.
- Comodous:
- Comodous in tempor ullamcorper miaculis
- Mattis laoreet:
- Pellentesque vitae neque mollis urna mattis laoreet.
- Divamus de ametos:
- Divamus sit amet purus justo.
- Molestie:
- Proin molestie egestas orci ac suscipit risus posuere loremous
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.
Custom Tab
x| Drostique | Nam tempus turpis at metus scelerisque placerat nulla deumantos |
| Pharetro Lorem | Pellentesque diam dolor elementum etos lobortis des mollis |
| Milancelos | Donec pretium egestas sapien et mollis |
| Pellentesque | Sedcus faucibus an sullamcorper mattis drostique des commodo pharetras |
| Proin Molestie | Pellentesque diam dolor elementum etos lobortis des mollis |
| Cosmopolis | Donec pretium egestas sapien et mollis |
- Choosing a selection results in a full page refresh.
