User Guide
Predia Touch Pro FHD/UHD
44
8. Serial Port Control
The RS-232 port of the interactive display is defined as follows:
Connect RS-232 port to the PC or controlling device. Enable RS-232 serial port connection and
complete the following configuration.
The following table lists button controlling codes. The buttons share same functions with corres-
ponding buttons on the remote controller
1
6
7
8
9
2 TXD
3 RXD
4
5 GND
Port Number: COM 1 (Set the value according to the port number of the PC or controlling device.)
Bit rate
19200
Odd/even check
None
Data bit
8
Stop bit
1
Function
Controlling Code
Function Controlling Code
Power on
7F 08 99 A2 B3 C4 02 FF 01 00 CF
1
7F 08 99 A2 B3 C4 02 FF 01 21 CF
Power off
7F 08 99 A2 B3 C4 02 FF 01 01 CF
2
7F 08 99 A2 B3 C4 02 FF 01 22 CF
Mute
7F 08 99 A2 B3 C4 02 FF 01 02 CF
3
7F 08 99 A2 B3 C4 02 FF 01 23 CF
Sound mode
7F 08 99 A2 B3 C4 02 FF 01 05 CF
4
7F 08 99 A2 B3 C4 02 FF 01 24 CF
Signal source 7F 08 99 A2 B3 C4 02 FF 01 06 CF
5
7F 08 99 A2 B3 C4 02 FF 01 25 CF
One button
7F 08 99 A2 B3 C4 02 FF 01 07 CF
6
7F 08 99 A2 B3 C4 02 FF 01 26 CF
start
Display status 7F 08 99 A2 B3 C4 02 FF 01 09 CF
7
7F 08 99 A2 B3 C4 02 FF 01 27 CF
HDMI 1
7F 08 99 A2 B3 C4 02 FF 01 0A CF
8
7F 08 99 A2 B3 C4 02 FF 01 28 CF
HDMI 2
7F 08 99 A2 B3 C4 02 FF 01 0B CF 9
7F 08 99 A2 B3 C4 02 FF 01 29 CF
HDMI 3
7F 08 99 A2 B3 C4 02 FF 01 0C CF
0
7F 08 99 A2 B3 C4 02 FF 01 2A CF
Internal
7F 08 99 A2 B3 C4 02 FF 01 38 CF
OK
7F 08 99 A2 B3 C4 02 FF 01 2B CF
PC(OPS)