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For sale is a Data Instruments D42517-01 Rev E I/O Processor B PCB Board. Industrial control PCB from Data Instruments. Assembly D42517-01 Rev E, silkscreened ?PROCESSOR B? and ?I/O?. Back side shows D50667 Rev E and PS4 94V0. Features plug-in orange/green terminal blocks, various logic ICs and Siemens processors, plus a multi?pin header. Condition: used. General dust and marks, scuffs on back corners, and hand-marked revision. No obvious missing parts seen. Board only; no cables, enclosure, or documentation. Testing: untested; functionality unknown. Assumption: intended as a replacement I/O/processor board in a Data Instruments control system.