Figure 9, J5 jumper header (on lw models only), Re 10), or via the driv – Seagate CHEETAH 15K.5 SCSI ST3146855LC User Manual
Page 46: Res 10
40
Cheetah 15K.5 SCSI Product Manual, Rev. J
Figure 10. J5 jumper header (on LW models only)
SCSI ID = 8
SCSI ID = 9
SCSI ID = 10
SCSI ID = 11
SCSI ID = 12
SCSI ID = 13
SCSI ID = 14
SCSI ID = 15
A 3 A2 A1
SCSI ID = 0
(default)
SCSI ID = 1
SCSI ID = 2
SCSI ID = 3
SCSI ID = 4
SCSI ID = 5
SCSI ID = 6
SCSI ID = 7
A 0
J1-DC Power
68 Pin
SCSI I/O Connector
J1
J5
Pin 1
[1] [2]
Drive HDA (rear view, PCB facing downward)
[2]
Pin 1
PCB
1P
2P
3P
4P
+5V Ground
[4]
Host
Alternate
Usage Plug
Pins 1, 3, 5, and 7 are
optional connections to
switching circuits in host
equipment to establish
drive ID.
Remote Switches
For ID selection use
jumpers as shown or
connect a cable for
remote switching as
shown below.
Dashed area is optional host circuitry (external to the
drive) connected to host supplied optional usage plug.
[4]
Reserved
Pins 2, 4, 6, and 8 are
normally not grounded.
They are driven low (ground)
for 250 ms after a Reset
or PWR ON to allow drive to
read SCSI ID selected.
A0 A1 A2 A3
11 9
7
5
3
1
12 10 8 6
4
2
+5V
Drive Activity LED
+5V
N.C.
N.C.
Ground