Appendix
INTERFACE
RT200i/RT230i USER MANUAL
APPENDIX
Pinout Description
Serial Port
：
Baud rate 9600, no parity, 8 data bits, 1 stop bit, XON/XOFF
protocol and RTS/CTS
RS232 Housing(9-pin to 9-pin)
-
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI
Computer
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
+5V, max 500mA
TXD
RXD
N/C
GND
RTS
CTS
RTS
N/C
Printer
****The total current to the serial port may not exceed 500mA.
USB
