Epson LT - 286e - Manual (Page 103)

Before accessing the DIP switches, make sure the power switch
is off and all cables, including the AC adapter, are
disconnected.
Accessing the DIP Switches
To locate the DIP switches, follow these steps:
1. Remove the expansion slot cover on the left side of the
computer. Press down on the release tab and lift off the
expansion slot cover.
2. Pull out the carrying handle.
3. Turn the computer upside down with the handle away from
you.
A-2 DIP Switches and Slide Switches