Product Description:

The E4809-770-049-B optical interface board is produced by Okuma within the E4809 CNC Boards series. Designed for machine-tool control networks, the board serves as a dedicated link that converts numerical-control data into light-based signals so commands reach downstream amplifiers without electrical noise. By enabling fiber-optic communication between the controller and servo equipment, the unit supports precise motion coordination across high-speed machining cells. It is used where stable data transfer is important during rapid interpolation, axis synchronization, and frequent command updates.

As an optical fiber board, the module routes all traffic over fiber optic cable, eliminating ground loops and crosstalk common with copper conductors. Its front edge carries an optical fiber connector that provides a direct, keyed mating point to the machine harness; once seated, the transceiver converts digital words into light through the built-in digital-to-optical pulse converter. This arrangement helps preserve signal integrity near inverters, contactors, and other switching devices inside the cabinet. With a shipping mass of 1.80 kg, the card can slide into a rack without additional supports while still providing a high-bandwidth communication path for motion-related data.

The card mates mechanically with the SVP-IID mounting board, and the assembly is located on the NC side of the control rack so optical jumpers remain short. When connected to a High-Precision VAC Unit, the transmitted optical pulses drive the velocity loop directly, allowing the servo amplifier to react to incremental position changes at the intended update rate. Mounting the interface near both the numerical processor and the associated drive hardware keeps internal routing compact and helps separate signal paths from power conductors. This layout limits electrical interference between control communication and high-current cabinet wiring.