Steps for demo testing of pacs integration and dcm4chee without actual modality

I have installed pacs-integration and dcm4chee in bahmni and wanted to test it for demo purpose, like without the involvement of actual Utrasound/x-ray machines (modalities).

Is there any way we can kind of use any virtual replacement/emulate these modalities because I found sample (.dcm) files over the internet. I was thinking about a way of sending back these diacom images to EMR via pacs corresponding to a particular radiology order and view it in Bahmni Emr with oviyam2(default shipped web based diacom viewer) which is normal intended flow.