Epson LT-286e 用户手册

Switch 

4-This switch defines the primary display.

Set this switch to ON if the primary display is color.

Set this switch to OFF if the primary display is monochrome.

Switch 

5--This switch is reserved and must always be ON.

Switch 

6-This switch tells the computer whether the serial

port on the side of the computer is configured as a primary port

or a secondary port.

Set this switch to ON if you want the serial port to be

recognized as the primary serial port 

($3F8-$3FF).

Set this switch to OFF if you want the serial port to be

recognized as the secondary serial port 

($2F8-$2FF).

Switch 

7-This switch enables or disables the serial port on the

side of the computer. If you install an option card that offers

serial ports, you may need to disable the internal serial port if it

conflicts with the port on the option card.

Set this switch to ON to enable the serial port.

Set this switch to 

OFF 

to disable the serial port.

Switch 

8--This switch tells the computer whether the parallel

port on the side of the computer is configured as a primary port

or a secondary port.

Set this switch to ON if you want the parallel port to be

recognized as the primary parallel port ($378-$37F).

Set this switch to OFF if you want the parallel port to be

recognized as the secondary parallel port 

($278-$27F).

Switch 

9--This switch enables or disables the parallel port on

the side of the computer.

Set this switch to ON to enable the parallel port.

Set this switch to OFF to disable the parallel port.

Switch 

IO-This switch is not used and must be set to 

ON.

A-8

DIP Switches and Slide Switches