Epson Equity IIe User Manual page 156

The following illustration shows the location of jumpers J4 and
J5 on the HI card. Check the table above to see which one(s)
you need to change.
- - 1 1 1 /il I
To move a jumper from one position to the other, use your
fingers or needle-nose pliers or tweezers to pull it off its current
pins and gently move it to the other position. Be careful not to
lose the jumper or leave it out of the computer.
5-16 Installing Options