page 4
VERIFY SERIAL PORT IS ENABLED
Note
This step only needs to be performed if you had referred to the
warning icon on the previous page.
The system BIOS (known as CMOS) is usually entered at the start of the boot
process by pressing a key or sequence of keys to get to the system setup
screens. Each system manufacturer uses different key combinations for
entering the CMOS/BIOS setup. Please refer to your system documentation
for specific key sequences for all of the following examples.
The key needed to be pressed to enter CMOS setup can be seen at the start of
the boot process (though it does not remain on the screen for very long) on
most systems.
Example: <PRESS F2 TO ENTER SETUP>
Common keys on some systems include: DEL, F1, F2, CTRL-ALT-S or ESC. Please
refer to your system manufacturers documentation for exact instructions to
enter the CMOS setup.
1.
Turn on the power to the computer and enter your CMOS setup.
2.
The serial ports will usually be listed within a Peripheral Configuration
or On Board Devices section. Consult your system documentation for
specifics and select the correct section for the serial ports.
Within this section the serial ports will be listed as either On Board Serial
Port 1 & 2 (or A and B) or On Board UART 1 & 2 (or A and B). Refer to
the examples below.
Examples: On Board Serial Port 1: 3F8h (COM1), IRQ4
On Board Serial Port 2: 2F8h (COM2), IRQ3
The serial port should not be set for
DISABLED
or
AUTO
. If the
serial port is set for
DISABLED
or
AUTO
you will need to change the
configuration. Please refer to your system manufacturer’s documentation
for the specific keys needed for this operation.
Your screen will normally show you a legend of which keys perform which
actions, usually located at the bottom of the CMOS screen.
3.
Navigate the cursor to the correct serial port.
4.
Change or modify the value to show either:
COM1 or 3F8h or 3F8
OR
COM2 or 2F8h or 2F8
5.
Look for the option to
save and exit
CMOS. This will be the
F10
key
on
most systems
. Please consult your system documentation for specific key
commands.
This concludes the CMOS setup to verify a serial port is enabled.
Summary of Contents for 56SX-92
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