Siemens 6SC9111-2AJ25 is a Pulse Evaluation (IDV) module in Siemens' 6SC control-relay family. This PCB assembly acts as the pulse evaluator within a Siemens industrial control setup, interpreting input pulses and feeding the appropriate signal to the associated relay circuitry. The part is catalogued as 6SC9111-2AJ25 and is commonly listed as a replacement PCB for this model in spare-parts catalogs and listings.
