Switch S402 controls terminal preferences:

SECTION DESCRIPTION
------- -------------------------------------------------
0       0=underscore cursor             1=block cursor
1       0=key click                     1=no click
2       0=discard past end of line      1=wrap around
3       0=no auto-linefeed on CR        1=auto-linefeed on CR
4       0=no auto-CR on linefeed        1=auto-CR on linefeed
5       0=Zenith mode                   1=ANSI mode
6       0=[number] keypad normal        1=keypad shifted
7       0=60hz Refresh                  1=50hz refresh

Switch S401 controls baud rate and parity:

SECTION DESCRIPTION
------- -------------------------------------------------
0-3     Baud rate
4       0=no parity             1=parity
5       0=odd parity            1=even parity
6       0=normal parity         1=stick parity
7       0=half duplex           1=full duplex

BAUD    SECTION
RATE    0 1 2 3
------- -------
N/A     0 0 0 0
300     1 1 0 0
600     0 0 1 0
1200    1 0 1 0
2400    0 0 0 1
3600    1 0 0 1
4800    0 1 0 1
7200    1 1 0 1
9600    0 0 1 1
19200   1 0 1 1