Extron-electronics IR Remote Control Hex Codes and Signal Timing Manuale Utente Scaricare il pdf (Pagina 3)

Signal Timing

IR Remote Control Hex Codes and Signal Timing • Signal Timing

Carrier Frequency = 38 KHz

(50% duty cycle)

9 ms

4.5 ms

Carrier On

Carrier Off

Carrier Off Carrier On Carrier Off

9 ms

0.56 ms

2.5 ms

Tf = 108 ms Tf = 108 ms

Lead Code

1st Frame

Repeat Code

0.56 ms

Lead Code

Repeat Code

Bytes 1-4

Bit “0”

1.125 ms

0.56 ms

Bit “1”

2.25 ms

Bit Description

0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 D0 D1 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7

Code

Inverse Code

Device Address

Byte 1

Byte 2

General Signal Timing with Code Positions

9 ms

4.5 ms

Lead Code

Code

Inverse Code

1st Frame

0 0 0 0 1 1 1 0

1 1 1 1 0 0 0 1

Device Address

Byte 1

Byte 4

Byte 3

Byte 2

Data Bits Transmitted

Hex Code Equivalent

0 0 0 0 0 0 0 0

1 1 1 1 1 1 1 1

Example

The ﬁgure below shows the transmitted signal to represent a

single press of button #15.

1 2 3 4

IR Remote Control 1
Hex Codes and Signal Timing 1
Hex codes 2
Signal Timing 3
Extron Electronics, USA 4
Extron Electronics, Europe 4
Extron Electronics, Asia 4
Extron Electronics, Japan 4

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