Chapter 5
13
2.
4.
I/O Definition
Please refer the detailed technical information about all I/O ports as followings.
2.1. Serial Port
COM Port
PIN
Description
PIN
Description
1
DCD
6
DSR
2
RXD
7
RTS
3
TXD
8
CTS
4
DTR
9
RI / 5V /12V
5
GND
10
NC
PIN
R232
RS422
RS485
1
DCD
TX-
D-
2
RXD
TX+
D+
3
TXD
RX+
4
DTR
RX-
2.2. Cash Drawer
PIN
Description
PIN
Description
1
GND
4
12V / 19V
2
D_OUT0
5
D_OUT1
3
D_IN
6
GND