Serial Ports (Cn15) - Aaeon PCM-5894 User Manual

Serial ports (CN15)

The mainboard offers four serial ports: three RS-232 and one RS-
232/422/485. These ports allow you to connect them to serial
devices ( mouse, printers, etc.).
COM 1-4 RS-232/422/485 serial ports (CN15)
COM1, COM2, COM3, COM4 RS-232/422/485 serial port
COM1
COM2
COM3
COM4
32 PCM-5894 User's Manual
PIN SIGNAL
1 DCDA
3 RXDA
5 TXDA
7 DTRA
9 GND
11 DCDB
(422TXD-/485DATA-)
13 RXDB
(422TXD+/485DATA+)
15 TXDB
17 DTRB
19 GND
21 DCDC
23 RXDC
25 TXDC
27 DTRC
29 GND
31 DCDD
33 RXDD
35 TXDD
37 DTRD
39 GND
PIN SIGNAL
2 DSRA
4 RTSA
6 CTSA
8 RIA
10 N.C.
12 DSRB(422RXD+)
14 RTSB(422RXD-)
16 CTSB
18 RIB
20 N.C.
22 DSRC
24 RTSC
26 CTSC
28 RIC/+5V/+12V
30 N.C.
32 RSRD
34 RTSD
36 CTSD
38 RID/+5V/+12V
40 N.C.