DS CWA 16374-75:2012 Extensions For Financial Services (Xfs) Interface Specification Release 3.20 - Part 75: Card Dispenser Device Class Interface Migration From Version 3.10 (Cwa 15748) To Version 3.20 (This Cwa) Programmer's Reference Explains the functionality of the services provided by the Card Dispenser (CRD) device class under XFS, by defining the service-specific commands that can be issued, using the WFSGetInfo, WFSAsyncGetI