Rs-232C Configurations; Communication Parameters; Ir Out Using Guide; Suitable / Not Recommend Remote-Controller Data Format - LG UT64 Series Installation Manual

RS-232C Configurations

7-Wire Configurations
(Standard RS-232C cable)
PC
RXD 2
3
TXD
GND 5
4
DTR
DSR 6
RTS 7
8
CTS
D-Sub 9
3-Wire Configurations
PC
2
RXD
TXD 3
GND 5
4
DTR
DSR 6
7
RTS
CTS 8
D-Sub 9

Communication Parameters

• Baud rate: 9,600 bps (UART)
• Data length: 8 bits
• Parity : None
• Stop bit: 1 bit
• Communication code: ASCII code
• Use a crossed (reverse) cable.
60
TV
3
2
5
6
4
8
7
D-Sub 9
(Not standard)
TV
3
2
5
6
4
8
7
D-Sub 9

IR OUT Using Guide

Suitable / Not Recommend remote-
controller data format
Item
Suitable data
format
TXD
RXD Not recommend
data format
GND
DSR

IR Receiver specifications

DTR
CTS
Carrier frequency
RTS
Peak Wavelength
Minimum burst
length
Minimum gap time
is required of
Data word length
Minimum gap time
in the data stream
TXD
is needed of
RXD
GND
Parameter Symbol
DSR
High Level
DTR
Out Pulse Twh
RTS
Width
CTS
Low Level
Out Pulse Twl
Width
• If not use the remote-controller with data formats
recommended, IR output signals will be suppressed
automatically by IR receiver.
• In this case, LG does not guarantee IR working function.
• To make sure of this matter, here are two methods as
below.
- Use the remote-controller with suitable data formats.
- Use the IR dongle receiver of the set-top box.
Formats
NEC, RC5, Toshiba
Continuous data format (short burst/gap
signal)
37.9 KHz
940 nm
Min. 300 us
Min. 350 us
Max. 100 ms
Min. 50 ms
Conditions Min Typ Max Unit
Burst Wave
400 - 800
= 600 µs
Period =
400 - 800
1.2 ms
µs
µs