IBM 3708 End-User Reference page 66

Data General@ D210 Display Terminal
Switch Position Note
BAUD RATE
---
I
PARITY
---
I
50/60 HZ
---
2
TERMINAL DG
MODE
Notes:
1. This setting must match the configuration of the 3708.
2. This setting must match the power line frequency. In the USA, this is set
to 60 Hz.
Appendix B. Setting up Your Terminal
B-S