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60
RS-232C Configurations
7-Wire Configurations
(Standard RS-232C cable)
PC
RXD
2
TXD
3
GND
5
4
DTR
DSR
6
7
RTS
CTS
8
D-Sub 9
3-Wire Configurations
(Not standard)
PC
2
RXD
TXD
3
5
GND
DTR
4
DSR
6
RTS
7
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
3
TXD
Suitable data format
2
RXD
Not recommend data format
5
GND
6
DSR
4
DTR
IR Receiver specifications
8
CTS
7
RTS
D-Sub 9
Minimum gap time is required of
Minimum gap time in the data stream
TV
3
TXD
2
RXD
5
GND
Parameter Symbol
6
DSR
High Level
4
DTR
Out Pulse
8
CTS
Width
7
RTS
Low Level
D-Sub 9
Out Pulse
Width
Item
Continuous data format
(short burst/gap signal)
Carrier frequency
Peak Wavelength
Minimum burst length
Data word length
is needed of
Conditions Min Typ Max Unit
Burst Wave
Twh
400
= 600 µs
Period =
Twl
400
1.2 ms
Formats
NEC, RC5, Toshiba
37.9 KHz
940 nm
Min. 300 us
Min. 350 us
Max. 100 ms
Min. 50 ms
µs
-
800
µs
-
800
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