IBM 3174 Reference Manual page 193

ASCII Station Setup and Switch Settings
Setup Item
Selection
Note
Break
Break
Auto Answerback
No Auto Answerback
Answerback=
- -
1
Answerback concealed
—
1
Tab Set-Up
—
3
Graphics Set-Up
—
3,5
4010/4014 Set-up
—
3,5
Notes:
1. User preference: this is a VT240 local option.
2. This setting must match the configuration of the 3174.
3. The function designated by this switch has no effect on the 3174.
4. Must be set to Multinational if you use Belgian, Spanish, SwissFrench, or Swiss German.
5. Applies only to VT241.
B-16 3174 Establishment Controller Terminal User's Reference for Expanded Functions