Seagate ST31230N/ND Manuale Utente
18 Hawk 2LP Family Installation Guide, Rev. B
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DC Power connection
The drives receive DC power through a 4 pin connector
mounted on the PCB next to the SCSI I/O connector.
See figure below.
mounted on the PCB next to the SCSI I/O connector.
See figure below.
Figure 1. DC power connection, 50 pin SCSI I/O
connector
SCSI address selection
Make sure that the SCSI bus address jumper(s) are
properly set for the bus address assigned to the drive.
See figures 3a and 3b showing the bus address select
header and the jumper configurations that select
addresses 0 through 7. Typically the primary boot
device is set to ID 0, and the subsequent SCSI drives
are jumpered in ascending order. Bus addresses 0
through 6 should be used (the host adapter usually
uses address 7). If the drive LED shows no on/off
activity when the host is trying to communicate with it,
an incorrect bus address selection at the drive should
be suspected.
properly set for the bus address assigned to the drive.
See figures 3a and 3b showing the bus address select
header and the jumper configurations that select
addresses 0 through 7. Typically the primary boot
device is set to ID 0, and the subsequent SCSI drives
are jumpered in ascending order. Bus addresses 0
through 6 should be used (the host adapter usually
uses address 7). If the drive LED shows no on/off
activity when the host is trying to communicate with it,
an incorrect bus address selection at the drive should
be suspected.
DC Power
Connector
Connector
4
3
2
1
50 Pin
SCSI I/O
Connector
Pin
1
2
3
4
2
3
4
Power
+12V
+12V RET
+ 5V RET
+ 5V
+12V
+12V RET
+ 5V RET
+ 5V