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2.3.4 Serial Port
DC-IN 6~36V
Serial port 1 to 4 (COM 1 to 4) can be configured for RS-232, RS-422, or RS-
485 with auto flow control communication. The default definition is RS-232. If
you want to change to RS-422 or RS-485, you can find the setting in BIOS.
BIOS Setting
COM 1 (CN1)
COM 2 (CN2)
COM3 (JCOM3)
COM4 (JCOM4)
The pin assignments are listed in the table as follow :
Serial
Port
1 to 4
©Vecow MTC-6000 User Manual
DIO
V+ V
Isolated
USB 3.0
20
10
PIN 1 ~ 8
D I
PIN 11 ~ 18
On | Off
IGN
Function
RS-232
RS-422 (5-wire)
RS-422 (9-wire)
RS-485
RS-485 w/z auto-flow control
Pin No.
RS-232
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
PoE+
3
4
5
6
11
1
DO
LAN4
LAN6
LAN3
LAN5
RS-422
(5-wire)
TXD-
TXD+
RXD+
RXD-
GND
-----------
-----------
-----------
-----------
GETTING TO KNOW YOUR MTC-6000
COM1
COM2
COM3
COM4
RS-422
RS-485
(9-wire)
(3-wire)
TXD-
DATA-
TXD+
DATA+
RXD+
-----------
RXD-
-----------
GND
GND
RTS-
-----------
RTS+
-----------
CTS+
-----------
CTS-
-----------
42
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