Casio IT-2000W Technical Reference Manual page 224

Example: To set the CODE39 C/D to "Prevent check (without changing the transfer
function)" with the corresponding expanded commands
OBR_Send ("u");
OBR_Send ("A");
OBR_Send ("v");
Power-save Mode Control Command
Used to control the power-save mode of the OBR. See the following diagram.
Example
SW input
Stop mode
Writing Set Values to EEPROM
The OBR is provided with a function to write the current setting values to EEPROM.
To do this, transmit the 'y' command. If this is not done, other commands that have been transmitted
previously to the 'y' command will not be written to EEPROM. As a result, they will be erased when
the power is turned off and the settings specified by these commands will not be valid the next time
the power is turned on. However, the following commands can not be used to write a setting value to
EEPROM.
One period of buzzer activation/LED ON
Enable scanning
Disable scanning
Special mode (disable scanning after one normal reading)
Request sleep mode
Request stop mode
Expanded command control: Transmission start
Expanded command control: Transmission complete
Readable condition
Command "p"
Fig. 8.34
224
SW input
Command "H"
Command "U"
Command "o"
Sleep Mode
Command : L
Command : H
Command : I
Command : U
Command : o
Command : p
Command : u
Command : v