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42 Barracuda 4 Installation Guide, Rev. E
Terminator power
There are four possible terminator power configurations
for the ST15150W drive (see Figure 17). You will not
normally need to change this option and can leave the
drive configured as it was shipped from the factory.
The ST15150WD drive should be configured with a
jumper connecting J01 pins 1 and 3 (and no jumper on
J01 pins 2 and 4) as illustrated in Figure 17.
Figure 17. Setting terminator power jumpers
Pin 1
J4
J01
Term. power from drive.
ST15150W/WD
Term. power from SCSI bus.
Term. power to SCSI bus.
Term. power to SCSI bus and drive.
J01
Pin 1
Pin 2
Pin 3
*
*
*
* Valid for single-ended drives only.
Power
Connector
W/WD drives