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10-1. RS-232C Interface Model
The RS-232C interface model is equipped with DIP switches on the serial interface board unit
to change the communication settings. Change the settings for DIP switch No. 2 according to
the following procedures.
1. Turn off the printer and all components connected to it.
2. Remove the 2 screws.
3. Remove the serial interface board unit.
4. Change the setting of the DIP switches.
5. Replace the serial interface board unit.
Then secure it with the screws.
6. Turn on the printer and all components connected to it.
The factory settings of DIP switch are all on, except for switches 7 and 8.
DIP-SW 2
Switch Function ON OFF
2-1
Baud Rate See table below
2-2
2-3 Data Length 8 bits 7 bits
2-4
Parity Check Disabled Enabled
2-5
Parity Odd Even
2-6
Handshake DTR/DSR XON/XOFF
2-7
Pin #6 (DSR) reset signal Valid Invalid
2-8 Pin #25 (INIT) reset signal
Valid Invalid
Baud Rate Settings Table
Baud Rate Switch 2-1 Switch 2-2
4800BPS
OFF ON
9600BPS
ON ON
19200BPS
ON OFF
38400BPS
OFF OFF
No. 1
DIP-SW2
2 3 4 5 6 7 8
ON
OFF
DIP switch 2