InteliVision 18Touch 1.0 Global Guide
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Image 4.7 Serial Port mode settings using BIOS setup
Serial Port
Enables or disables the serial port.
Onboard Serial Port Mode
Select this to change the serial port mode to RS232, RS422, RS485 or RS485 Auto.
Terminal Resistor
Enables or disables the terminal resistor.
IMPORTANT: Only experinced user should do the BIOS changes.