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SCSI BUS and Devices
Chapter 5. SCSI BUS and Devices
Start of Repair for SCSI Bus and SCSI Devices
Problem Area Reported
SSC SCSI Adapter
Adaptec Differential SCSI Adapter
CD-ROM Drive Problems
4MM Oat Tape Problems
Description of the SCSI Bus
PCI
Board
Adaptec
SCSI Card
( optional)
SBC
Card
P13
2
Board-toBoard
?
Connector
Figure
26.
SCSI Bus
Reference Section
"ssc
SCSI Interface" on page 46
"Differential SCSI Adapter" on page 46
"CD-ROM" on page 48
"4MM OAT Tape" on page 48
External SCSI 3490
(optional)
BIDI
Board
Midplane =~
EPO Card
Board ,"
SCSI Term
r~
I
/
/
/
, , /
I
I
I
I
r
r
r
I
I
~
~
~----~-------------~
SCSI Wiring
Midplane Wiring
CD ROM
SCSI #04
4MMTape
SCSI #03
There can be two SCSI adapters installed. The SCSI adapter which connects the CD-ROM and 4MM
Tape is located on the SSC card. The second SCSI adapter (which is optional) is a Differential SCSI
adapter that is installed in PCI Slot 1 (at the top of the machine) and is used to connect external SCSI
3490 Tape drives.
© Copyright IBM Corp. 1999
45
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