Vecow RCX-1500 PEG User Manual page 27

2.2.14 Serial Port COM
COM 3
V+
Serial port can be configured for RS-232, RS-422, or RS-485 with auto flow
control communication. The default definition is RS-232, but if you want to
change to RS-422 or RS-485, you can find the settings in BIOS.
BIOS Setting
COM 1
COM 3
COM 4
The pin assignments are listed in the table as follows :
Serial
Port
1, 2
3, 4
©Vecow RCX-1500 PEG User Manual
COM 4
DC-IN
On | Off
IGN
V -
PEG Power
V -
V+
COM 1
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
Isolated DIO 1 Isolated
Digital Display
DP
DVI-I
Function
RS-422
(5-wire)
TXD-
TXD+
RXD+
RXD-
GND
-----------
-----------
-----------
-----------
GETTING TO KNOW YOUR RCX-1500 PEG
DIO 2
SIM 2
10
SIM 1
10 10
| LAN 1 | LAN 2
RS-422 RS-485
(9-wire) (3-wire)
TXD- DATA-
TXD+ DATA+
RXD+ -----------
RXD- -----------
GND GND
RTS- -----------
RTS+ -----------
CTS+ -----------
CTS- -----------
RST
20