34 PCM-6890B User Manual
Serial ports (CN16)
The PCM-6890B 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
PIN SIGNAL PIN SIGNAL
COM1 1
DCDa
2
DSRa
3
RXDa
4
RTSa
5
TXDa
6
CTSa
7
DTRa
8
RIa
9
GND
10 N.C.
COM2 11
DCDb
12 DSRb
(422TXD-/485DATA-)
13
RXDb
14 RTSb
()
15
TXDb
16 CTSb
(/)
17
DTRb
18 RIb
(422RXD-)
19
GND
20 N.C.
COM3 21
DCDc
22 DSRc
23
RXDc
24 RTSc
25
TXDc
26 CTSc
27
DTRc
28 RIc/+5V/+12V
29
GND
30 N.C.
COM4 31
DCDd
32 RSRd
33
RXDd
34 RTSd
35
TXDd
36 CTSd
37
DTRd
38 RId/+5V/+12V
39
GND
40 N.C.
Содержание PCM-6890B
Страница 1: ...PCM 6890B All in One FC Socket 370 Celeron Single Board Computer with LCD Ethernet Audio 4 COMs...
Страница 17: ...Chapter 1 General Information 7 Board layout...
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