Extron Electronics IR Remote Control Hex Codes and Signal Timing - Manual (Page 3)

Signal Timing
2 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 On
Carrier Off
Carrier Off Carrier On Carrier Off
0 0 F F
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 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
0 E 1 F
Device Address
Byte 1 Byte 4 Byte 3 Byte 2
Data Bits Transmitted
Hex Code Equivalent
0 0 F F
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.