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2 Cabling Storage Devices and Setting SCSI Addresses
20
Default Cabling Configuration (Non-Duplex)
C11
C20
C14
C20
External terminator
built into cable
SCSI Device
Shelf
SCSI Device
Shelf
SCSI B
SCSI C
SCSI A
SCSI D
Hot Swap
Subsystem
68 to 50 pin
adapter
Internal
terminator
Figure 2-4. Default Cabling Configuration (Non-Duplex)
UPPER
CAGE
1
2
3
4
5
6
LOWER
CAGE
1
2
3
4
5
6
65
4
1
2
3
SCSI ID
UPPER CAGE
LOWERCAGE
ID
ID
ID
ID
ID
ID
Off
On
The SCSI device shelves are on one SCSI
channel; the hot-swap cages are on another
channel. SCSI A may not be connected to a
DAC card. SCSI B can be connected to a
DAC card.
To change the SCSI addresses, see the
“Setting SCSI Addresses” section. For
internal cable part numbers, see the “Cabling
Diagram Legend.”
The switch settings shown in the example
are not the only acceptable settings.