Com Port Connector (Cn21); Table B.19:Com Port Connector (Cn21) - Advantech INTEL PCM-9587 User Manual

B.19

COM Port Connector (CN21)

Table B.19: COM Port Connector (CN21)
Pin
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
Signal
COM1 DCD
COM1 RX
COM1 TX
COM1 DTR
GND
COM2 DCD/485TX-
COM2 RX /485TX+
COM2 TX /485RX+
COM2 DTR/485RX-
GND
COM3 DCD
COM3 RX
COM3 TX
COM3 DTR
GND
COM4 DCD
COM4 RX
COM4 TX
COM4 DTR
GND
Pin Signal
2 COM1 DSR
4 COM1 RTS
6 COM1 CTS
8 COM1 RI
10 GND
12 COM2 DSR
14 COM2 RTS
16 COM2 CTS
18 COM2 RI
20 GND
22 COM3 DSR
24 COM3 RTS
26 COM3 CTS
28 COM3 RI
30 GND
32 COM4 DSR
34 COM4 RTS
36 COM4 CTS
38 COM4 RI
40 GND
59 PCM-9587 User Manual