17
COM7-10
Pin NO
RS232
Pin NO.
RS232
COM7
Pin A1
DCD7
Pin B1
DSR7
Pin A2
SIN7
Pin B2
RTS7
Pin A3
SOUT7
Pin B3
CTS7
Pin A4
DTR7
Pin B4
RI7
Pin A5
GND
Pin B5
N/A
COM8
Pin A6
DCD8
Pin B6
DSR8
Pin A7
SIN8
Pin B7
RTS8
Pin A8
SOUT8
Pin B8
CTS8
Pin A9
DTR8
Pin B9
RI8
Pin A10
GND
Pin B10
N/A
COM9
Pin A11
DCD9
Pin B11
DSR9
Pin A12
SIN9
Pin B12
RTS9
Pin A13
SOUT9
Pin B13
CTS9
Pin A14
DTR9
Pin B14
RI9
Pin A15
GND
Pin B15
N/A
COM10
Pin A16
DCD10
Pin B16
DSR10
Pin A17
SIN10
Pin B17
RTS10
Pin A18
SOUT10
Pin B18
CTS10
Pin A19
DTR10
Pin B19
RI10
Pin A20
GND
Pin B20
N/A
(7) GPIO (10-pin): GPIO & 80 Port Header Pitch=2.0mm
9
GPIO8
1
GND
GPIO8
3
GPIO8
5
GPIO8
7
GPIO8
0
GPIO8
2
2
Pin 1
10
VCC
GPIO8
4
GPIO8
6
*Note
: Maximum current limit is 1.5A while using 5V working voltage.
GPIO
