Samsung OHA 75" 4K Outdoor Commercial Display - Manual (Page 26)

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Input source control
• Function
The input source of a product can be changed using a PC.
• Viewing input source state (Get Input Source Status)
Header Command ID Data length Checksum
0xAA 0x14 0
• Setting the input source (Set Input Source)
Header Command ID Data length Data Checksum
0xAA 0x14 1 "Input Source"
"Input Source": An input source code to be set on a product.
0x0C Input source
0x20 MagicInfo
0x21 HDMI1
0x22 HDMI1_PC
0x23 HDMI2
0x24 HDMI2_PC
0x55 HDBT
―
HDMI1_PC and HDMI2_PC cannot be used with the Set command. They only respond to "Get" commands.
―
Available input sources may vary depending on the model.
―
MagicInfo is only available with models that contain the MagicInfo function.
• Ack
Header Command ID Data length Ack/Nak r-CMD Val1 Checksum
0xAA 0xFF 3 'A' 0x14 "Input
Source"
"Input Source": An input source code to be set on a product.
• Nak
Header Command ID Data length Ack/Nak r-CMD Val1 Checksum
0xAA 0xFF 3 'N' 0x14 "ERR"
"ERR" : A code showing what error has occurred.