Chapter 1
Installation
5
4. Move the jumpers to the first and third sets of pins (
FIGURE 1-2
).
Holding the I/O board in your left hand, look in the upper right corner. There are
eight pins (four pairs aligned vertically) below the J2 circuit and above three black
chips. There should be two jumpers attached to two or more pins. Move these
jumpers to match the placement shown in
FIGURE 1-2
.
5. Replace the I/O board and tighten the screws (reverse Step 2 and Step 3).
6. Set the SEN card SCSI ID switch to F (
FIGURE 1-2
).
7. Repeat Step 1 through Step 6 to change the SCSI IDs for all the remaining drive
trays and SEN cards.
Make sure that the I/O boards in all the drive trays have the same SCSI ID jumper
settings.
FIGURE 1-2
Removing the Drive Tray I/O Board and Setting SCSI ID Jumpers
Back of drive trays
Drive tray I/O board
Thumbscrews
Drive tray I/O board
Back of drive tray
SEN card SCSI ID
SCSI ID pins
1
2
3
4
