Connection through VTAM

Both the TWX Model 33/35 Common Carrier Teletypewriter Exchange and the WTTY Teletypewriter (World Trade only) can be connected to CICS through VTAM® using NTO.

If a device is connected through VTAM using NTO, the protocols used are the same as for the 3767 logical unit, and the application program can make use of these protocols (for example, HANDLE CONDITION SIGNAL). However, the data stream is not translated to a 3767 data stream but remains as that for a TWX/WTTY.