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5.2 Serial Port Settings
The equipment shipped, the default for the serial ports is RS-232 specification.
In the case of RS-232(Default)
Name recognized
by the BIOS
Serial port
You can change the setting of the serial ports to RS-485 Half Duplex, RS-422 Full Duplex by the
following operation.
(1) Setup the serial ports
1. Start the setup menu. (See "5.3 BIOS Setup (1) Starting the setup menu")
2. Open Advanced in top menu. Select Super IO Configuration and press
Enter.
3. Select Serial Port A Configuration, next select Mode select.
4. RS-232, RS-485 Half Duplex, RS-422 Full Duplex a three modes are displayed.
Please select the mode to use.
5. Open Exit in the top menu again. Move the cursor to Exit Saving Changes. Press
Enter. The message "Save configuration and reset?" is displayed.
6. Select "Yes" and press Enter.
This completes the procedure. Then turn off the equipment and restart it.
In the case of RS-485 Half Duplex
Name recognized
by the BIOS
Serial port
In the case of RS-422 Full Duplex
Name recognized
by the BIOS
Serial port
(*1) Automatically assigned by the BIOS.
(*2) Do not change the "I/O address", "IRQ assignment", or "Name recognized by the OS" even if you
change the serial port setting.
I/O address
IRQ assignment
(*1)(*2)
3F8h
I/O address
IRQ assignment
(*1)(*2)
3F8h
I/O address
IRQ assignment
(*1)(*2)
3F8h
Name recognized
(*1)(*2)
by the OS(*2)
IRQ 4
Name recognized
(*1)(*2)
by the OS(*2)
IRQ 4
Name recognized
(*1)(*2)
by the OS(*2)
IRQ 4
5-5
5. SPECIFICATION
COM1
Standard feature
COM1
Available only
when set by user
COM1
Available only
when set by user
Note
Note
Note
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