Product manual

Product Manual - Hawk 2 Family (Wide bus) SCSI-2 (Volume 1), Rev. A 51
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11.6 Physical interface
Figure 11.6-1 shows the locations of the physical interface components for the drive. Shown are the locations
of the D.C. power connector, the SCSI interface connector, the I/O line terminators, and the drive select and
option select header.
Details of the physical, electrical and logical characteristics are given in paragraphs following, while the SCSI
operational aspects of Seagate drive interfaces are given in the Seagate SCSI Interface Product Manual,
P/N 77738479.
Figure 11.6-1a. ST12400W/WD family drive physical interface
Figure 11.6-1b. Model ST12400WC physical interface (80 pin I/O and DC power connector)
80 Pin
SCSI I/O
Connector
J6
J2
Pin 1
J1-DC Power
J1-Auxiliary
Pin 1A
68 Pin
SCSI I/O
Connector
Pin 1P
J1-DC Power
J6
J2
Pin
1P
2P
3P
4P
Power
+12V
+12V ret
+ 5V ret
+ 5V
J1
Pin 1
1P2P3P4P
J1
Pin 1
J1-Auxiliary
Pin 1A
PCB