LG 22LH20R Owner's Manual
135
APPENDIX
EXTERNAL CONTROL DEVICE SETUP
(Except 32/42LH6***, 32/42/47/55SL8***)
RS-232C Setup
Connect the RS-232C (serial port) input jack to an
external control device (such as a computer or an A/V
control system) to control the product’s functions
externally.
external control device (such as a computer or an A/V
control system) to control the product’s functions
externally.
Connect the serial port of the control device to the
RS-232C jack on the product back panel.
RS-232C jack on the product back panel.
Note:
■
RS-232C connection cables are not supplied with
the product.
■
In USB and Bluetooth mode, it doesn’t support RS-
232C function.
Type of Connector; D-Sub 9-Pin Male
No.
Pin Name
1
No connection
2
RXD (Receive data)
3
TXD (Transmit data)
4
DTR (DTE side ready)
5
GND
6
DSR (DCE side ready)
7
RTS (Ready to send)
8
CTS (Clear to send)
9
No Connection
AV
I
I
VIDEO
AUDIO
/MONO
RGB IN (PC)
AUDIO IN
(RGB/DVI)
RS-232C IN
(CONTROL)
1
5
6
9
RS-232C Configurations
7-Wire Configurations (Standard RS-232C cable)
PC
TV
RXD
2
3
TXD
TXD
3
2
RXD
GND
5
5
GND
DTR
4
6
DSR
DSR
6
4
DTR
RTS7
8
CTS
CTS8
7
RTS
D-Sub 9
D-Sub 9
3-Wire Configurations(Not standard)
PC
TV
RXD
2
3
TXD
TXD
3
2
RXD
GND
5
5
GND
DTR
4
6
DTR
DSR
6
4
DSR
RTS7
7
RTS
CTS8
8
CTS
D-Sub 9
D-Sub 9