B.19 com port connector (cn21), Table b.19: com port connector (cn21), B.19 – Advantech INTEL PCM-9587 User Manual
Page 67: Com port connector (cn21), Table b.19:com port connector (cn21), Appendix b p in assignments
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PCM-9587 User Manual
Appendix B
P
in Assignments
B.19
COM Port Connector (CN21)
Table B.19: COM Port Connector (CN21)
Pin
Signal
Pin
Signal
1
COM1 DCD
2
COM1 DSR
3
COM1 RX
4
COM1 RTS
5
COM1 TX
6
COM1 CTS
7
COM1 DTR
8
COM1 RI
9
GND
10
GND
11
COM2 DCD/485TX-
12
COM2 DSR
13
COM2 RX /485TX+
14
COM2 RTS
15
COM2 TX /485RX+
16
COM2 CTS
17
COM2 DTR/485RX-
18
COM2 RI
19
GND
20
GND
21
COM3 DCD
22
COM3 DSR
23
COM3 RX
24
COM3 RTS
25
COM3 TX
26
COM3 CTS
27
COM3 DTR
28
COM3 RI
29
GND
30
GND
31
COM4 DCD
32
COM4 DSR
33
COM4 RX
34
COM4 RTS
35
COM4 TX
36
COM4 CTS
37
COM4 DTR
38
COM4 RI
39
GND
40
GND