LG M3702CG User Manual page 40

Controlling the Multiple Product
RS-232C
Use this method to connect several products to a single PC.
You can control several products at a time by connecting them to a single PC.
Connecting the cable
Connect the RS-232C cable as shown in the picture.
* The RS-232C protocol is used for communication between the PC and product. You can
turn the product on/off, select an input source or adjust the OSD menu from your PC.
RS-232C Cable
(not included)
PC
monitor 1
RS-232C Configurations
7-Wire Configurations (Standard RS-232C cable)
PC
RXD
2
TXD
3
GND
5
DTR
4
DSR
6
RTS
7
CTS
8
D-Sub 9
(Female)
Communication Parameter
Baud Rate : 9600buadRate (UART)
Data Length : 8bits
Parity Bit : None
Stop Bit : 1bit
Flow Control : None
Communication Code : ASCII code
Use a crossed (reverse) cable
monitor 2
Monitor
3
TXD
2
RXD
5
GND
6
DSR
4
DTR
8
CTS
7
RTS
D-Sub 9
(Female)
A1
monitor 3
3-Wire Configurations (Not Standard)
PC Monitor
RXD
3
2
TXD
2
3
GND
5
5
DTR
6
4
DSR
4
6
RTS
7
7
CTS
8
8
D-Sub 9 D-Sub 9
(Female) (Female)
monitor 4
TXD
RXD
GND
DTR
DSR
RTS
CTS