Star Micronics FVP-10U Hardware Manual page 48

To change DIP-SW 3, which is on the RS-232C interface PCB, follow the instructions given below.
(1) Check that both the printer and the host computer are turned off.
(2) Remove the interface board from the printer.
(3) Remove the interface PCB from the interface board so that you can access DIP-SW 3.
(4) Change the DIP-SW 3 settings.
RS-232C interface PCB
(5) Attach the RS-232C interface PCB following the procedure for removing it in reverse.
(6) Install the interface board onto the printer.
(7) Turn both the printer and the host computer on.
Note: The new settings take effect when you turn on the printer.
■ DIP-SW 3
Switch
-
Baud rate
-
- Data length
- Parity check
- Parity
- Handshaking
3-7
Reserved
-
Baud rate settings
- -
ON ON
OFF ON
ON OFF
OFF OFF
By factory default, 3-7 and 3-8 are OFF, and all other settings are ON.
RS-232C interface board
DIP-SW 3
Function
Baud rate
9600 bps
4800 bps
19200 bps
38400 bps
ON
See the table below.
8 bits
Invalid
Odd
DTR
Always OFF
-  -
OFF
7 bits
Valid
Even
XON/XOFF