Reproduction OSI 582 4-Slot Backplane Motherboard

Name: Reproduction OSI 582 4-Slot Backplane Motherboard
SKU: 11974
Price: 30.00 USD
Availability: InStock
Rating: 5.00 (2 reviews)

(2 Reviews)

Reproduction OSI 582 backplane motherboard, new high quality PC board

Sold By Glitch Works, LLC

Reproduction OSI 582 4-Slot Backplane Motherboard 1

Reproduction OSI 582 4-Slot Backplane Motherboard 2

Reproduction OSI 582 4-Slot Backplane Motherboard 3

Reproduction OSI 582 4-Slot Backplane Motherboard 4

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Reproduction OSI 582 backplane motherboard, new high quality PC board

For sale are new-made reproductions of the Ohio Scientific 582 4-slot backplane/motherboard. These backplanes were usually found in the Ohio Scientific Challenger 4P, but can be used as the SYS bus backplane with the Ohio Scientific 560Z "Processor Lab" board, in custom cases, or as a bare board for test bench setups. These are 1:1 reproductions made from 4000 DPI scans of original boards, with respect to trace and mounting hole placement. They have been run on extra-thick 2.4mm (0.095 inch) FR4 stock to reduce the excessive flex experienced with original Ohio Scientific products.

These boards have been scanned and reproduced as part of the Ohio Scientific Preservation Project. You can learn more about the OSI Preservation Project at http://osiweb.org or http://www.glitchwrks.com/osi -- please join the OSIweb forums! See our other listings for more reproduction and newly designed Ohio Scientific boards!

The OSI 582 backplane supports up to four OSI 48-pin slots. There is no termination, so you'll need to ensure that NMI and IRQ are pulled up with external resistors if none of your boards have their own pull-ups. Each position requires four Molex KK-396 (formerly KK-156) 12 pin headers, part number 26-20-2121. You can find Molex's page on the correct part number at the following link:

https://www.molex.com/molex/products/datasheet.jsp?part=active/0026202121_PCB_HEADERS.xml

The headers are available from the usual sources -- Mouser, Digi-Key, etc.

You can see the OSI 582 in use as the SYS bus backplane in our writeup on the OSI 560Z Processor Lab.

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Review Breakdown

Average Ratings

Product: (5.00)

Documentation: (5.00)

Shipping: (5.00)

Communication: (5.00)

Alexander | Jan. 29, 2024

Excellent backplane

If you're building a small OSI system, this is a great option. Build quality is solid, which you need considering how much OSI cards like to hold onto their backplanes.

Jim | July 8, 2019