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DT2 / DT4 series User Manual
Appendix
A. Printer interfaces
Serial port
Default
setting
: Baud rate 9600, no parity, 8 data bits, 1 stop bit, XON/XOFF protocol
and RTS/CTS
RS232 housing (9-pin to 9-pin)
DB9 socket
DB9 plug
---
1 1
+5V, max 500mA
RXD
2 2
TXD
TXD
3 3
RXD
DTR
4 4
N/C
GND
5 5
GND
DSR
6 6
RTS
RTS
7 7
CTS
CTS
8 8
RTS
RI
9 9
N/C
Computer
Printer
【
Note
】
The total current to the serial port may not exceed 500 mA.
USB port
Connector type : Type B
Pin No.
1
2
3
4
Function
VBUS
D-
D+
GND
Internal interface
UART1 wafer
Ethernet module
N.C
1 1
N.C
TXD
2 2
RXD
RXD
3 3
TXD
CTS
4 4
RTS
GND
5 5
GND
RTS
6 6
CTS
E_MD
7 7
E_MD
RTS
8 8
CTS
E_RST
9 9
E_RST
+5V
10 10
+5V
GND
11 11
GND
+5V
12 12
+5V