Product Description:

The E4809-045-106-A belongs to the Okuma E4809 CNC Boards series and is installed inside OSP machine controllers to handle video generation for the operator display. This board is manufactured by Okuma and serves as the dedicated CRT processor. It converts internal control data into drive signals for the screen so that machining status, alarms, and program information are presented clearly to the operator.

Functionally, the unit is a CRT Processor Board, meaning its on-board logic times raster refresh and overlays graphical content for cathode-ray monitors used on legacy Okuma lathes and machining centers. It accepts part-program characters that can be rendered in three selectable sizes: Half, Normal, and Enlarged, allowing the control to emphasize critical messages or fit more data in a limited viewport. The board supports the OSP 5000/5020 control platform, so it interfaces with those CPU buses and memory maps. Video is delivered as a composite CRT Video Signal that feeds directly to the monitor chassis without additional conversion hardware. For graphics, the circuitry can manage up to 4 individual full-screen pages, enabling the operator to toggle between machining coordinates, tool graphics, and diagnostic charts without re-rendering each time.

Several data paths are provided. A multifunction connector exposes Character IF; Color Graphic IF; Serial IF lines that separate alphanumeric, bitmap, and asynchronous traffic, reducing contention during high refresh rates. The serial channel receives Keyboard Data; Switch Data so keystrokes and panel toggles stay synchronized with displayed cursors. It also transmits LED Data; Buzzer Data to illuminate status lamps or activate audible alerts when programmed conditions occur. All messaging is routed toward the NC Operation Panel, ensuring that feedback remains local to the machine and does not rely on external PCs or networked HMIs.