A16B-1211-0900 Fanuc PCB Board A16B12110900 AI6B-I2II-O9OO

A16B-1211-0900 | FANUC PMC-M MDI/CRT Adapter Board A2 — Series 00C CNC / 1 of 2 Board Assembly A02B-0086-C052

PMC-M CRT/MDI Adapter — Connecting the Operator Interface

The A16B-1211-0900 is the adapter board that connects the Series 00C CNC's operator interface hardware — the CRT display and MDI keyboard — to the PMC-M (Programmable Machine Controller, Model M) electronic system. In FANUC's Series 00C CNC architecture, the PMC-M serves as the machine sequence controller. The A16B-1211-0900 adapter board provides the physical and electrical interface layer between:

CRT display: The CRT monitor showing the CNC's programme display, parameter screens, alarm messages, and diagnostic information. The adapter board translates the PMC-M's display data into the video signals that drive the CRT.

MDI keyboard: The Manual Data Input keyboard used for operator programme entry, parameter editing, and manual mode commands. The adapter board scans the MDI key matrix, decodes key presses, and communicates them to the PMC-M for processing. Without A16B-1211-0900, neither the CRT display nor the MDI keyboard can function — the operator loses all visual feedback and manual input capability.

Key Product Information

Series 00C — The CNC Platform

The "#00C" in the description identifies the FANUC Series 00C as the compatible CNC platform. The Series 00 is a FANUC CNC generation designed for machine tools requiring a compact, integrated CNC control — the 00C designation identifies the specific generation within the 00 series. The Series 00C operator interface, using the A16B-1211-0900 adapter board for CRT/MDI connection, is typical of the CNC hardware architecture of this era — discrete adapter boards bridging the CNC's digital control electronics with the operator's analogue and keyboard interface hardware.

Application Scenarios

Series 00C CNC display fault: A FANUC Series 00C CNC's CRT display shows no image or corrupted display while the CNC continues operating. The A16B-1211-0900 adapter board is identified as the fault. Replacement restores the CRT display function.

MDI keyboard non-responsive: A Series 00C CNC's MDI keyboard stops responding — key presses are not registered. The A16B-1211-0900's keyboard scanning circuit is the identified fault. Replacement restores MDI input.

FAQ

Q1: What is the companion board (board 2) for the A02B-0086-C052 assembly?

The A02B-0086-C052 assembly contains A16B-1211-0900 as board 1. The second board in the assembly is identified from the complete assembly documentation or the specific unit's hardware list. When diagnosing a fault, test both boards independently if possible to confirm which board has failed before ordering.

Q2: What is the "A2" designation in "PMC-M MDI/CRT ADAPTER A2"?

"A2" identifies the adapter's hardware type and version within the PMC-M operator interface adapter family. Type A is the standard adapter configuration; version 2 (A2) indicates a specific hardware revision or capability level within this type. This distinguishes it from Type A version 1 or any Type B variants that may exist for different PMC-M configurations.

Q3: Is A16B-1211-0900 specific to the Series 00C, or does it serve other FANUC CNC generations?

The "#00C" in the description explicitly identifies Series 00C compatibility. The Series 00C uses the PMC-M controller architecture. Whether this adapter board serves other PMC-M-equipped CNC systems depends on the compatibility of the A02B-0086-C052 assembly across different CNC models. Confirm from the applicable FANUC hardware documentation.

Q4: Does replacing A16B-1211-0900 affect any CNC data?

No. CNC parameters and programmes reside in the CNC's main memory modules. The CRT/MDI adapter board holds no stored CNC data — it is a hardware interface board. Replacing A16B-1211-0900 does not affect any stored machining data.