Installing The Interface Board - Epson SQ-2550 User Manual

Interface Boards
Interface number
#8143
#8148
#8165
#8641
#8642
All EPSON interfaces have the EPSON name printed on them.
If the board has an identification code printed on it, it will be a
four-digit number beginning with 8, and should correspond to
one of the numbers listed in the table above.
Make sure you set the DIP switch and jumper settings on the
interface board according to the instructions in your computer
manual and your interface board manual before installing the
board.

Installing the interface board

The optional interface boards available for your printer are easy
to install, and the only tool needed is a cross-head screwdriver.
Turn off your printer and computer. Then disconnect the
interface cable from the printer and the computer.
5-32 Using Printer Options
Name
New serial interface
Intelligent serial interface
Intelligent IEEE-488 interface
Coax interface
Twinax interface