12
[11] Serial Port 1-4 Header（20*2 Pin 2.0 mm）
Pin Definition Pin Definition
1
DCD
[2]
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
10
GND
11
DCD
[2]
12
RXD
13
TXD
14
DTR
15
GND
16
DSR
17
RTS
18
CTS
19
RI
[3]
20
N/A
21
DCD
[2]
22
RXD
23
TXD
24
DTR
25
GND
26
DSR
27
RTS
28
CTS
29
RI
[3]
30
GND
31
NC
[4]
32
RXD
33
TXD
34
DTR
35
GND
36
DSR
37
RTS
38
CTS
J_COM1-4
39
NC
[4]
40
GND
[12] Serial Port 5 Header（3*1 Pin 2.54mm）
Pin Definition Pin Definition
1 RXD 2 TXD
J_COM5
3 GND
[13] Serial Port 6 Header（3*1 Pin 2.54mm）
Pin Definition Pin Definition
1 RXD 2 TXD
J_COM6
3 GND
*Workable in RS-232 mode only
