Toshiba TEC B B-SX5T SERIES - Manual (Page 31)

3. ON LINE MODE ENGLISH VERSION EO1-33036
3.4 Dump Mode
E3- 3
3.4 Dump Mode
In Dump mode, any characters sent from the host computer will be
printed. Received characters are expressed in hexadecimal values. This
allows the user to verify programming commands and debug the
program.
For details, please refer to your nearest TOSHIBA TEC service
representative.