DS/CWA 16926-9
Extensions for Financial Services (XFS) interface specification Release 3.50 – Part 9: Text Terminal Unit Device Class Interface – Programmer's Reference
| Organization: | DS |
| Publication Date: | 12 January 2023 |
| Status: | active |
| Page Count: | 61 |
| ICS Code (IT applications in banking): | 35.240.40 |
| ICS Code (Identification cards. Chip cards. Biometrics): | 35.240.15 |
| ICS Code (Interface and interconnection equipment): | 35.200 |
scope:
This specification describes the functionality of the services provided by text terminal unit (TTU) services under XFS, by defining the service-specific commands that can be issued, using the WFSGetInfo, WFSAsyncGetInfo, WFSExecute and WFSAsyncExecute functions. This section describes the functions provided by a generic Text Terminal Unit (TTU) service. A Text Terminal Unit is a text i/o device, which applies both to ATM operator panels and to displays incorporated in devices such as PIN pads and printers. This service allows for the following categories of functions: • Forms oriented input and output • Direct display output • Keyboard input • LED settings and control All position indexes are zero based, where column zero, row zero is the top-leftmost position.
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