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The card has two rows of pins on the bottom of the card you can add to allow access to any pin on the ISA slot. You can connect to the IRQ lines here if needed. Pin 1 & pin 19 on the 74HCT688 & 74HCT245 have two pins exposed each on the board.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.