Order a Mitsubishi RX321-1 remote I/O add-on PCB from REACO CNC. The pictured board carries the RX321C-1 and BN638A489G51A markings. Send photos of your original PCB and remote I/O unit nameplate so we can check fitment and quote a replacement.

Mitsubishi RX321-1 Product Information

Source-Checked Details

Mitsubishi lists the RX321-1 add-on board alongside the RX311 base board in the FCUA-DX110 remote I/O unit. The assembled unit provides 64 digital inputs and 48 sinking digital outputs. See section 2.2 of the Mitsubishi MELDAS 600 Series Connection Manual.

Product Scope

This listing covers the RX321-1 add-on PCB. The pictured board has two gray latching connectors and a short ribbon cable. Your quotation will specify the supplied board and whether the ribbon cable is included.

Fitment Confirmation

Send photos of both sides of your original PCB, a close-up of the full board number and letter label, and the remote I/O unit nameplate. Include the -1 suffix so we can compare the exact model and connector layout before you order.

Request Price and Availability

Send your required quantity and delivery country for pricing, available condition, dispatch timing, and courier options. We will share a test video before dispatch.

Browse Related Mitsubishi Components

View the complete Mitsubishi FCUA-DX110 remote I/O unit or browse our Mitsubishi PCB collection.