Epson Equity LT-386SX User Manual - Page 120

A-4 DIP Switches, Because the computer is upside down, the DIP switch numbers

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Because the computer is upside down, the DIP switch numbers are upside down and the ON/OFF orientation is reversed. Take care when changing a DIP switch setting that you are changing the correct switch. SWITCH DESCRIPTION SW-1 SWAP THE FDD SW -2 PRIMARY DISPLAY SW-3 SELECT SERIAL PORT SW-4 ENABLE SERIAL PORT SW-5 SELECT PARALLEL PORT SW-6 ENABLE PARALLEL PORT SW-7 SELECT B DRIVE SW-8 NOT USED THE PICTURE SHOWS FACTORY SETTING ON: A: IS A: AND B: IS B: OFF : A: IS B: AND B: IS A: ON: PRIMARY IS COLOR DISPLAY OFF : PRIMARY IS MONOCHROME DISPLAY ON: SERIAL PORT IS 3F8H THROUGH 3FFH OFF : 2F8H THROUGH 2FFH ON: ENABLE THE SERIAL PORT OFF: DISABLE THE SERIAL PORT ON: PARALLEL PORT IS 378H THROUGH 37FH OFF. 278H THROUGH 27FH ON: ENABLE PARALLEL PORT OFF : DISABLE PARALLEL PORT ON INTERNAL 13 DRIVE OFF : EXTERNAL 8 DRIVE MUST ALWAYS BE ON The following table lists the system functions these switches control. DIP switch settings 1 ON' Defines the internal 1.44MB, 3'binch diskette drive as A and the external 1.2MB, 5'k-inch drive as 8. OFF Defines the internal 1.44MB, 3'h-inch diskette drive as B and the external 1.2MB, 5'binch drive as A. 2 ON* The primary display is color. OFF The primary display is monochrome. 3 ON* Selects serial port 1 (COM1, I/O addresses 3F8H through 3FFH) as the serial port. OFF Selects serial port 2 (COM2, I/O addresses 2F8H through 2FFH) as the serial port. A-4 DIP Switches

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Because the computer is upside down, the DIP switch numbers
are upside down and the ON/OFF orientation is reversed. Take
care when changing a DIP switch setting that you are changing
the correct switch.
SWITCH
DESCRIPTION
SW-1
SWAP THE FDD
SW -2
PRIMARY DISPLAY
SW-3 SELECT SERIAL PORT
SW-4 ENABLE SERIAL PORT
SW-5 SELECT PARALLEL PORT
SW-6 ENABLE PARALLEL PORT
SW-7 SELECT B DRIVE
SW-8 NOT USED
THE PICTURE SHOWS FACTORY SETTING
ON:
OFF :
ON:
OFF :
ON:
OFF :
ON:
OFF:
ON:
OFF.
ON:
OFF :
ON
OFF :
MUST
A: IS A: AND B: IS B:
A: IS B: AND B: IS A:
PRIMARY IS COLOR DISPLAY
PRIMARY IS MONOCHROME DISPLAY
SERIAL PORT IS 3F8H THROUGH 3FFH
2F8H THROUGH 2FFH
ENABLE THE SERIAL PORT
DISABLE THE SERIAL PORT
PARALLEL PORT IS 378H THROUGH 37FH
278H THROUGH 27FH
ENABLE PARALLEL PORT
DISABLE PARALLEL PORT
INTERNAL 13 DRIVE
EXTERNAL 8 DRIVE
ALWAYS BE ON
The following table lists the system functions these switches
control.
DIP switch settings
1
ON’
Defines the internal 1.44MB,
3’binch
diskette drive
as A and the external 1.2MB,
5’k-inch
drive as 8.
OFF
Defines the internal 1.44MB,
3’h-inch
diskette drive
as B and the external 1.2MB,
5’binch
drive
as
A.
2
ON*
The primary display is color.
OFF
The primary display is monochrome.
3
ON*
Selects serial port 1 (COM1, I/O addresses 3F8H
through 3FFH) as the serial port.
OFF
Selects serial port 2 (COM2, I/O addresses 2F8H
through 2FFH) as the serial port.
A-4 DIP Switches