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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 Central Service Module 502-03418-00

$599.00 USD

Sale Sold out

ConditionSurplus - Untested MPN502-03418 Stock #0226-00516

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: 5.0 lbs

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This Giddings and Lewis Central Service Module, part number 502-03418-00 (assembly number 501-04304-00, REV-2, dated 11.98), is a large-format CNC control processor board designed for use in Giddings and Lewis machine control systems including the G&L 8000 and 8000B NumeriPath CNC platforms. This later date code example features an expanded DRAM memory array populated with KM6323568LP devices at positions U3 through U18, providing increased on-board memory capacity relative to earlier revisions. Three large yellow electrolytic capacitors provide bulk power filtering. An RTC real-time clock IC is present at position U63, and a DALE XO-43B 10.000 MHz crystal oscillator provides system timing at Y1. Memory sub-board EPROMs are labeled 502-52974-00 / 89202-00, 502-52975-00 / 89203-00, 502-52976-00 / 89204-00, and 502-52977-00 / 89205-00. SBX1 and SBX2 expansion connectors and multiple blue ribbon cable connectors are present for sub-board and inter-module interfacing. Voltage test points for +5V, +12V, and -12V are silkscreened on the left edge. The board is densely populated with through-hole and surface mount ICs and yellow SMD capacitors throughout on a green FR4 substrate. The Central Service Module manages system timing, memory, and inter-module communication within the G&L CNC control rack. With the G&L 8000 platform at end-of-life status per Fives, replacement central service modules are increasingly scarce for facilities maintaining legacy Giddings and Lewis horizontal boring mills and vertical turning centers.

Stock # 0226-516

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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.