Vecow SPC-7000 User Manual page 34

2.4.9 JCOM1, JCOM2, JCOM3, JCOM4 : Serial Port
1 3
4
1
Serial port 1 to 4 (JCOM 1 to 4) can be configured for RS-232, RS-422, or RS-485
with auto flow control communication. The default definition of COM 1 to 4 is
RS-232, if you want to change to RS-422 or RS-485, you can find the setting in
2
BIOS.
19
20
10
The pin assignments are listed in the following table :
Serial
Port
1, 2
3, 4
©Vecow SPC-7000/7100/7200 User Manual
1
2
143
144
145
146
1
260
8
1 19 1
1
2 20 2
1
Pin No. RS-232
1 GND_EARTH
2 GND
3 RI
4 DTR
5 CTS
6 TXD
7 RTS
8 RXD
9 DSR
10 DCD
40
3 1
39
5
18
14
10
13
4
9
5
BIOS Setting
1 4
COM 1 (JCOM1)
COM 2 (JCOM2)
COM 3 (JCOM3)
COM 4 (JCOM4)
RS-422
(5-wire)
GND_EARTH
GND
-----------
RXD-
-----------
RXD+
-----------
TXD+
-----------
TXD-
GETTING TO KNOW YOUR SPC-7000
2
1
7
3 1
1
JCOM1
JCOM2
1
JCOM3
1
JCOM4
1
1
7
1
1
10 10 7
R2
6
Function
G L3 G L3 L1
L1
1
O O
L2 L2
Y Y
L4 L4 RS-232
RS-422 (5-wire)
RS-422 (9-wire)
RS-485
RS-485 w/z auto-flow control
RS-422 RS-485
(9-wire) (3-wire)
GND_EARTH GND_EARTH
GND
CTS-
RXD- -----------
CTS+ -----------
RXD+ -----------
RTS+ -----------
TXD+ DATA+
RTS- -----------
TXD- DATA-
10
10
10
10
10
1
10
GND
RI
27