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C o m p a c t B o a r d
P C M - 5 8 9 3 / 5 8 9 3 L
Chapter 2 Quick Installation Guide
2 - 24
2.30 Serial Port (CN19)
Note:
COM 1 & COM 2 support full modem control signals and COM 3 &
COM 4 support TX & RX only.
COM / RS232 mode
Pin Signal
Pin Signal
1 DCD1
2
DSR1
3 RXD1
4 RTS1
5 TXD1
6 CTS1
7 DTR1
8 RI1/+5V/+12V
9 GND
10
N/C
11 DCD2
12 DSR2
13 RXD2
14 RTS2
15 TXD2
16 CTS2
17 DTR2
18 RI2/+5V/+12V
19 GND
20 N/C
21 N/C
22 N/C
23 RXD3
24 N/C
25 TXD3
26 N/C
27 N/C
28 +5V/+12V
29 GND
30 N/C
31 N/C
32 N/C
33 RXD4
34 N/C
35 TXD4
36 N/C
37 N/C
38 +5V/+12V
39 GND
40 N/C