The PCL-722 is a discontinued digital I/O ISA card featuring 144 channels, designed to emulate the 8255 PPI Mode 0. It offers buffered circuits for superior driving capacity compared to the standard 8255, along with interrupt handling and output status readback capabilities. The card maintains pin compatibility with Opto-22 I/O module racks.
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The PCL-722 is a discontinued digital I/O ISA card featuring 144 channels, designed to emulate the 8255 PPI Mode 0. It offers buffered circuits for superior driving capacity compared to the standard 8255, along with interrupt handling and output status readback capabilities. The card maintains pin compatibility with Opto-22 I/O module racks.
