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深圳市信步科技有限公司
地址：
深圳市福田区车公庙泰然工贸园
210
栋西座
5H T 86-755-88251900 F 86-755-88251910 www.seavo.com
[6] COM1-4 Header
（
20*2 Pin 2.0 mm
）
Location
Header
Pin
Definition
Pin
Definition
J_COM1-4
1
COM1_DCD
[1][4]
2
COM1_RXD
[4]
3
COM1_TXD
[4]
4
COM1_DTR
[4]
5
GND
[4]
6
COM1_DSR
[4]
7
COM1_RTS
[4]
8
COM1_CTS
[4]
9
COM1_RI
[4]
10
GND
[4]
11
COM2_DCD
[1]
12
COM2_RXD
13
COM2_TXD
14
COM2_DTR
15
GND
16
COM2_DSR
17
COM2_RTS
18
COM2_CTS
19
COM2_RI
[2]
21
COM3_DCD
[1]
22
COM3_RXD
23
COM3_TXD
24
COM3_DTR
25
GND
26
COM3_DSR
27
COM3_RTS
28
COM3_CTS
29
COM3_RI
[2]
30
GND
31
N/C
[3]
32
COM4_RXD
33
COM4_TXD
34
COM4_DTR
35
GND
36
COM4_DSR
37
COM4_RTS
38
COM4_CTS
39
N/C
[3]
40
GND
Notes:
[1]: This pin is default to be DCD signal and alternative to be 5V or 12V.
[2]: This pin is default to be RI signal and alternative to be 5V or 12V.
[3]: This pin is default to be N/C signal and alternative to be 5V or 12V.
[4]: COM1 header co-lays with the rear panel’s DB9 connector, so for the models with a DB9 connector
on the rear panel, the definition of pin1-pin10 will be “N/C”.
[7] COM5 Header
（
3*1 Pin 2.54mm
）
Location
Header
Pin
Definition
Pin
Definition
J_COM5
1
RXD
2
TXD
3
GND
