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Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

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Giddings and Lewis EIA Interface Board 502-02804-50 m00512

$49.00 USD

Sale Sold out

ConditionSurplus - Untested MPN502-02804 Stock #0226-00512

Photos reflect current condition. Items differing from description may be eligible for return or refund — see our condition guide.

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Estimated package weight: 6.0 lbs

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This Giddings and Lewis EIA Interface board, part number 502-02804-50 (assembly number 501-03168-00), is a large-format CNC control circuit board designed for use in Giddings and Lewis machine control systems including the G&L 8000 and 8000B NumeriPath CNC platforms. The board features dual gold-finger edge connectors on both the left and right edges for backplane installation, and is densely populated with through-hole ICs, resistor networks, red capacitors, and discrete components on a green FR4 substrate. A 40-pin DIP processor or logic IC is mounted at center, accompanied by a 1.843200 MHz crystal oscillator for clocking. Twelve test point locations (TP2 through TP12) are labeled across the board surface. Seven vertical white trace indicator lines are silkscreened for layout reference. The EIA designation indicates this board handles EIA-standard serial communication or digitizing interface functions within the CNC control rack. A serial number label area is present at the lower right edge. The board carries an orientation marking of UP with an arrow for correct rack installation. With the G&L 8000 control platform at end-of-life status per Fives, replacement interface boards such as this one are increasingly scarce for facilities maintaining legacy Giddings and Lewis horizontal boring mills, vertical turning centers, and other G&L CNC equipment. No voltage rating was confirmed from the provided photos.

Stock # 0226-512

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Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.