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VSC Remote
IR Remote Control
Hex Codes and Signal Timing
Guide to Hex Codes and Signal Timing for
Extron IR Remote Controls
68-1323-01
Rev. A
10 06
Signal Timing
Example
The figure below shows the transmitted signal to represent a
single press of button #15.
Data Bits Transmitted
Inverse Code
Code
1st Frame
Device Address
Byte 3
Byte 4
Byte 2
Byte 1
Lead Code
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
0
1
1
1
1
0
0
0
1
0
0
F
0
1
F
E
F
9 ms
4.5 ms
Hex Code Equivalent
General Signal Timing with Code Positions
Carrier Frequency = 38 KHz
(50% duty cycle)
Device Address
Byte 2
1st Frame
Inverse Code
Code
Byte 1
Lead Code
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
0
0
F
F
9 ms
4.5 ms
2.5 ms
Carrier Off
0.56 ms
Repeat Code
Carrier On
9 ms
Bit Description
Bit “0”
Bit “1”
Carrier On Carrier Off
Carrier On Carrier Off
0.56 ms
0.56 ms
1.125 ms
2.25 ms
Tf = 108 ms
Tf = 108 ms
Repeat Code
Lead Code
Bytes 1-4
Repeat Code
IR Remote Control Hex Codes and Signal Timing • Signal Timing
2
Extron Electronics, USA
1230 South Lewis Street
USA
Extron Electronics, Europe
Beeldschermweg 6C
The Netherlands
Extron Electronics, Asia
135 Joo Seng Road, #04-01
Singapore 368363
Extron Electronics, Japan
Kyodo Building
Chiyoda-ku, Tokyo 102-0082 Japan
+81.3.3511.7655
714.491.1500
+31.33.453.4040
+65.6383.4400
Fax 714.491.1517
Fax +31.33.453.4050
Fax +65.6383.4664
Fax +81.3.3511.7656
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