Fanuc CNC I/O Connection Unit A20B-1003-0240
Fanuc CNC I/O Connection Unit A20B-1003-0240
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The Fanuc A20B-1003-0240 is a CNC I/O connection unit PCB designed for use in Fanuc System 15A CNC control systems. This board, revision /06B, functions as an I/O interface module with 96 inputs and 64 outputs, providing connectivity between the CNC controller and peripheral machine devices. The board is made in Japan and carries Fanuc part number A20B-1003-0240, also referenced in the market as A20B10030240. The PCB features Fanuc ORT04 fiber optic connectors at positions COP2 and COP4, consistent with the high-speed serial I/O link architecture used in Fanuc 15-series CNC systems. The board is mounted with a gold-chromate finished metal card frame visible on the reverse side, typical of Fanuc rack-mount PCB assemblies. Connection points along the board edge suggest rack or backplane installation within a Fanuc 15A control cabinet. This part is commonly sought as a replacement or spare for Fanuc 15A-series CNC machine tools including machining centers and lathes where the I/O connection unit requires service. Compatible with Fanuc System 15A CNC architectures. The visible revision level is /06B.
Stock # 0226-416
