LG STB-6500, Installation Manual

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58
RS-232C Configurations
7-Wire Configurations
(Standard RS-232C cable)
PC STB
RXD 2 3 TXD
TXD
3 2
RXD
GND 5 5 GND
DTR
4 6
DSR
DSR 6 4 DTR
RTS
7 8
CTS
CTS 8 7 RTS
D-Sub 9 D-Sub 9
3-Wire Configurations
(Not standard)
PC STB
RXD 2 3 TXD
TXD
3 2
RXD
GND 5 5 GND
DTR
4 6
DSR
DSR 6 4 DTR
RTS
7 8
CTS
CTS 8 7 RTS
D-Sub 9 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
Item Formats
Suitable data format NEC, RC5, Toshiba
Not recommend data format
Continuous data format
(short burst/gap signal)
IR Receiver specifications
Carrier frequency 37.9 KHz
Peak Wavelength 940 nm
Minimum burst length Min. 300 us
Minimum gap time is required of Min. 350 us
Data word length Max. 100 ms
Minimum gap time in the data stream
is needed of
Min. 50 ms
Parameter Symbol Conditions Min Typ Max Unit
High Level
Out Pulse
Width
Twh
Burst Wave
= 600 µs
Period =
1.2 ms
400 - 800
µs
Low Level
Out Pulse
Width
Twl 400 - 800
µs