Epson EQUITY 3865X/20 PLUS - Manual (Page 150)

The following table lists the jumper settings for all the possible
hard disk drive configurations.
Hard disk drive jumper
settings
C/D
DSP
ACT
Drive configurations
One hard Two hard disk Two hard disk
disk drive drives: master drives: slave
- - -
X X
-
-
X
-
X X X
X = jumper installed
- = no jumper installed
To move a jumper from one position to the other, use your
fingers, needle-nose pliers, or tweezers to pull it off its pins and
gently move it to the other position. Be careful not to drop the
jumper or damage the pins as you install it.
If you are going to use only one hard disk drive, the jumpers
should be set in positions C/D and ACT. If necessary, change
them to these settings. Then see “Installing a Hard Disk in the
Vertical Position,, on page 7-7 for instructions on installing your
first hard disk drive.
If you’ll be using two hard disk drives, you have a total of four
jumpers for eight jumper positions. (Two jumpers are included
with each drive, and each drive has four positions.) Install three
of the jumpers on the master drive in positions C/D, DSP, and
ACT. Install the fourth jumper on the slave drive in position
ACT.
If you are installing two hard disk drives at one time, install
the drive in the horizontal drive bay first. See “Installing or
Removing a Disk Drive in the Horizontal Position,, on page 7-23
for instructions.
7-6 Installing and
Removing Disk Drives