I'm thinking about the Macintosh Communications Toolbox as a route to supply this requirement. Can I get the technical details required to assess how difficult it will be to provide the appropriate communications tools to emulate the Wyse?
However, the Macintosh Communications Toolbox may be the ideal development tool for you. There is a Macintosh Communications Toolbox folder on the Apple Developer Web page on the internet at:
Here you'll find general Macintosh Communications Toolbox information. This includes product information, common questions and answers relating to the Communications Toolbox, tools and sample code, listings of third-party products that support the Communications Toolbox, and ongoing discussions on the Comm Toolbox. More technical details are found in the "Macintosh Communications Toolbox," and the "Communications Tools, Basic Connectivity Set" packages from APDA.
A more straightforward solution is to use another terminal emulator, if possible; many hosts will support VT100, VT52 or other terminals. Perhaps emulating another terminal will give you the capabilities you require.