How does shipping work for orders on MRO Exchange?

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.

What payment methods does MRO Exchange accept?

MRO Exchange accepts all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available, with payment due prior to shipment. Custom terms are available for established accounts.

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Giddings & Lewis 502-03553-01 I/O Module

$149.99 USD

Sale Sold out

ConditionSurplus - Untested MPN502-03553-01 Stock #0226-00447

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

Shipping Estimate

Estimated package weight: 10.0 lbs

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U.S. shipping, securely packaged. Ships in 1-2 Days
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The Giddings & Lewis DC 128 Input Board, part number 502-03553-01, is an industrial control I/O module designed for use within G&L automation and CNC control systems. The PCB is clearly marked “DC 128 INPUT BOARD” and includes reference number 501-04537-01 printed directly on the board. Manufacturer identification is confirmed by the Giddings & Lewis logo and silkscreen markings on the assembly.

This board is configured to handle up to 128 discrete DC input channels, as indicated by the model designation. The assembly features multiple integrated circuits, resistor networks, and structured input banks arranged across the PCB, along with edge connectors and multi-pin interface headers for system integration. Channel labeling and grouped terminal interfaces are visible, supporting structured input mapping within compatible control racks.

The unit is suitable for replacement, retrofit, or spare inventory applications in Giddings & Lewis control environments requiring the 502-03553-01 DC 128 Input Board. Identification is based strictly on visible PCB markings and attached labeling.

Stock # 0226-447

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Frequently Asked Questions

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.