NEC SuperScript 100C User Manual page 54

Baud Rate
Parity
Handshake
Data transmission speed:
2400, 9600, 19200, 38400 Baud.
This parameter is effective only if the optional
serial interface
is connected.
Type of data control method:
None, Even, Odd.
This parameter is effective only if the optional
serial interface
is connected.
, Type of data exchange procedure:
SOFT (Xon/Xoff + DTR) or HARD (DTR).
This parameter is effective only if the optional
serial interface is connected.