MITX-V1K0 Series - User Guide, Rev. 1.0
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7.10.
Serial COM1 - COM6 Ports (CN3, CN4, CN5, CN7, CN8 & CN10)
The serial connectors CN3 and CN4 provide RS232/422/485 connections.
The serial connections CN5, CN7, CN8 and CN10 provide RS232 connections.
Figure 25: Serial COM CN3, CN4, CN5, CN7, CN8, CN10
Table 30: Pin Assignment CN3, CN4
Pin
RS232 Signal
RS422 Signal
Half Duplex RS485
Signal
Full Duplex RS485
Signal
Note
1
DCD
TX-
DATA-
TX-
2
DSR
N/A
N/A
N/A
3
RXD
TX+
DATA+
TX+
4
RTS
N/A
N/A
N/A
5
TXD
RX+
N/A
RX+
6
CTS
N/A
N/A
N/A
7
DTR
RX-
N/A
RX-
8
RI
N/A
N/A
N/A
9
GND
GND
GND
GND
10
+5V
+5V
+5V
+5V
Table 31: Pin Assignment CN5, CN7, CN8, CN10
Pin
RS232 Signal
Note
1
DCD
2
DSR
3
RXD
4
RTS
5
TXD
6
CTS
7
DTR
8
RI
9
GND
10
+5V
