Toshiba T2000 Maintenance Manual page 109

Reverse 8 Levels
When you select a new LCD Gray Scale Level, any previous changes you made
using VCHAD (VGA Change Display program) are no longer valid.
3. COMMUNICATION
This option allows you to change the I/O address and interrupt request (IRQ) levels of the
serial ports. The T2000 supports one serial port and one built-in modem port.
Since the I/O address and IRQ level of a serial port are automatically established according
to the COM level, the SETUP program only prompts you to specify the COM level.
(1) Serial Port
This option lets you assign the communications port name to the serial port (labeled
COMMS).
COM1
COM2
Not Used
(2) Built-in Modem
This option lets you assign the communications port name to the built-in modem
port. If a built-in modem is not installed, this setting has no effect.
COM1
background with 8 levels of gray.
Displays white characters and graphics on a black
background with 8 levels of gray.
Assigns COM1 to the serial port.
This is the default setting.
Assigns COM2 to the serial port.
Disables the serial (COMMS) port.
Assigns COM1 to the built-in modem port.
3-57