Product manual
4
3
SCSI ID = 0
SCSI ID = 1
SCSI ID = 2
SCSI ID = 3
SCSI ID = 7
SCSI ID = 4
SCSI ID = 5
SCSI ID = 6
MSB
2
1
J5. SCSI ID
jumper block
J4. I/O connector
(pin 1)
Circuit
board
J6. Terminator power
source jumper block
Circuit
board
From SCSI connector
1
2
J3. DC power connector
+5V
+5V return
+12V return
+12V
1
2
3
4
Ground
Signal
6
5
3
4
J9. Active/passive
termination jumper block
Circuit board
+2.85V to 110 ohms
3
4
1
2
5
6
LSB
Circuit board
Power and ground to
220/330 ohms
From power connector
and to SCSI bus
From power connector
To SCSI connector only
Terminating resistors
not installed
Terminating
resistor
packs
(pin 1)
Figure 6. Configuration jumpers, back view
24 ST3655 Family SCSI Drives Product Manual, Rev. A