Rs-232C Configurations; Communication Parameters; Ir Out Using Guide; Suitable / Not Recommend Remote-Controller Data Format - LG UU66 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
(Not standard)
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.

IR OUT Using Guide

Suitable / Not Recommend remote-
controller data format
TV Suitable data
3 TXD
2
RXD Not recommend
data format
5 GND
6
DSR

IR Receiver specifications

4 DTR
8 CTS
Carrier frequency
7
RTS
Peak Wavelength
D-Sub 9
Minimum burst
Minimum gap time
is required of
Data word length
Minimum gap time
TV
in the data stream
3
TXD
is needed of
2 RXD
5 GND
Parameter Symbol
6
DSR
High Level
4 DTR
Out Pulse
8
RTS
Width
7 CTS
Low Level
D-Sub 9
Out Pulse
Width
Item
NEC, RC5, Toshiba
format
Continuous data format (short burst/gap
38 KHz
940 nm
16 cycles (420 µs)
length
21 cycles (550 µs)
Max. 100 ms
30 ms
Conditions Min Typ Max Unit
T
Burst Wave
WH
= 600 µs
Period =
1.2 ms
T
WL
• 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
signal)
µs
400 - 800
µs
400 - 800
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