A 2741, TWX, or WTTY device attached to a communication controller can be used with TSO/VTAM through its LU type 1 protocol managers. These devices are identified to VTAM® during the NCP generation process. (For details, see Network Terminal Option Migration and Resource Definition and the NCP, SSP, and EP Resource Definition Guide.) Because the NCP translates ASCII line code to EBCDIC for these devices, make sure that any logon mode entry named by the DLOGMOD and MODETAB operands on the PU or LU definition statements identifies the device to VTAM as EBCDIC. Following is an example of an ASCII TWX logon mode table entry definition that has the alternate code indicator in the COMPROT field set off (to indicate EBCDIC to TSO/VTAM).