Techly EXT-EF3000 User Manual page 11

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4. RS-232 control
If using the RS-232 function, insert the terminal block(s) into the serial
port(s) and connect it to an external device. The three pins are GND,
RxD, TxD. It can passthrough RS-232 commands and use commands
to control the transmitter or receiver. The default configuration is as
follows:
Baud rate: 9600
Date bits: 8
Stop bits: 1
Parity: None
Function
Restore device factory
setting
Device restart
Set baud rate of the
device
Note:
1) RS-232 commands must be separated by at least 200 milliseconds
2) If the RS-232 control instruction succeeds, it will return the control
instruction code; If it fails, it will return the error code: BA A5 02 01
00 01 04 0C
Control instruction code
BA A5 11 00 00 11 33
BA A5 10 00 00 10 30
Set the baud rate to 9600
BA A5 13 04 00 00 00 25 80 BC 67
Set the baud rate to 19200
BA A5 13 04 00 00 00 4B 00 62 33
Set the baud rate to 38400
BA A5 13 04 00 00 00 96 00 AD C9
Set the baud rate to 57600
BA A5 13 04 00 00 00 E1 00 F8 5F
Set the baud rate to 115200
BA A5 13 04 00 00 01 C2 00 DA 24
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