Epson Apex 20020, 20040 User Manual page 129

Multi-function card jumper settings for
Jumper number
3 4 10
A A A
A B B
B A A
B B
* Default Setting
The table below shows the jumpers on the multi-function card
that control the serial port.
Multi-function card jumper settings for serial port
Jumper number
5 6 9
A A A
A B B
B
* Default setting
Function
Enable built-in port as primary *
Enable built-in port as secondary
Enable compatibility with IBM monochrome
display/printer adapter
Disable built-in port
Function
Enable built-in port as primary *
Enable built-in port as secondary
Disable built-in port
Installing Option
parallel port
Cards
5-13