Description:
8-bit ISA card appears to perform analog and digital I/O functions, though only one analog controller is installed. More information is needed.
Identifying Numbers:
?
Onboard logic:
Rockwell R6522AP R6522-33 (x2)

Description:
8-bit ISA card appears to perform analog and digital I/O functions. More information is needed.
Identifying Numbers:
?
Onboard logic:
Rockwell R6522P R6522-58 (x2)

Description:
NuBus card appears to add analoge and/or digital I/O functions, though only analog hardware is populated on this example? This card has evidence of rework at R23, and is missing the rear bracket. Repair may be attempted after additional research.
Identifying Numbers:
ACM2-12-8A; 113-4-3 REV. 261; 113-1-4; 113-2-4
Onboard logic:
...

Description:
NuBus card appears to provide up to 160 channels of digital I/O with counter timers when completely equipped. Unfortunately the rear has been labeled for scrap, so some components may have been removed. Repair may be attempted after additional research.
Identifying Numbers:
NuBus Digital I/O and Counter Timer Board; ACM2-10-160; 119-4-0; 119-1-0; 119-2-0
Onboard logic:
Zilog Z0853606PSC CI0 (x5)