TTWin is sold in three 'packs' designated Red, Green and Blue. The key here is that the ONLY difference between these packages is the terminals that are emulated.
For example, TTWin Green pack and TTWin Blue pack contain the IBM 3151 emulation, whereas our entry-level pack, TTWin Red pack, does not.
For a full list of the emulations supported by each TTWin pack please see the TTWin 4 Specifications.
To purchase a copy of TTWin Red pack, TTWin Green pack, TTWin Blue pack or for volume licensing please contact us.