Serial Ports (Cn16) - Aaeon PCM-6890 User Manual

Serial ports (CN16)

The PCM-6890 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 (CN16)
COM1, COM2, COM3, COM4 RS-232/422/485 serial port
COM1 1
3
5
7
9
COM2 11
13
15
17
19
COM3 21
23
25
27
29
COM4 31
33
35
37
39
PIN SIGNAL
DCDa
RXDa
TXDa
DTRa
GND
DCDb
(422TXD-/485DATA-)
RXDb
(422RXD+)
TXDb
(422TXD+/485DATA+)
DTRb
(422RXD-)
GND
DCDc
RXDc
TXDc
DTRc
GND
DCDd
RXDd
TXDd
DTRd
GND
PIN SIGNAL
2 DSRa
4 RTSa
6 CTSa
8 RIa
10 N.C.
12 DSRb
14 RTSb
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.
Chapter 2 Installation 35