Controlling the Multiple Product
RS-232C
A28
IR Codes
RS-232C
How to connect
Remote Control IR Code
Connect your wired remote control to Remote Control port on the Product.
Output waveform
single pulse, modulated with 37.917kHz signal at 455kHz
Carrier frequency
FCAR = 1 / Tc = fosc / 12
Duty ratio = T1 / Tc = 1 / 3
Configuration of frame
• 1st frame
T1
Lead
code
Low
custom code
High
custom code
Data code
Data code
C0 C1 C2 C3 C4 C5 C6 C7 C0 C1 C2 C3 C4 C5 C6 C7 D0 D1 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7
Tc
Tf
• Repeat frame
Repeat code
Lead code
Repeat code
9 ms
Bit description
• Bit "0" • Bit "1"
2.25 ms
9 ms
0.55ms
0.56 ms
1.12 ms
0.56 ms
2.24 ms
Frame interval : Tf
• The waveform is transmitted as long as a key is depressed.
Tf
Tf
Tf = 108 ms @ 455 kHz
4.5 ms
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Summary of Contents for M4214T
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