Deskstar SCSI-2 Fast (DALS-3540)
Jumper settings |
Option jumper blocks |
Jumper position and function are as
shown below. The
jumpers control SCSI Device ID, Auto Spin Up, Unit Attention, SCSI
Terminator Connection, Target Initiated Synchronous Negotiation and
the LED Driver Output. |
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| Note: |
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- The jumper position of JP1, 2, and 3 define SCSI ID of the
drive
If JP1,JP2,JP3 are Off,Off,Off the SCSI ID is 0
If JP1,JP2,JP3 are On,Off,Off the SCSI ID is 1
If JP1,JP2,JP3 are Off,On,Off the SCSI ID is 2
If JP1,JP2,JP3 are On,On,Off the SCSI ID is 3
If JP1,JP2,JP3 are Off,Off,On the SCSI ID is 4
If JP1,JP2,JP3 are On,Off,On the SCSI ID is 5
If JP1,JP2,JP3 are Off,On,On the SCSI ID is 6 (shipping
default)
If JP1,JP2,JP3 are On,On,On the SCSI ID is 7
- If JP4 is Off, the drive will spin up automatically after
power on reset. If JP4 is On, the drive will not spin up
unless the host system issues a start command to the drive.
- If JP5 is On, unit attention after power on reset or SCSI
bus reset is disabled.
- If JP6 is On, the internal SCSI active terminator works.
- If JP7 is On, target initiated synchronous negotiation is
disabled, and then the initiator is required to start a
negotiation handshake if synchronous SCSI transfers are
desired.
- Jumpers JP8, JP9, JP10 and JP11 are not used.
- Jumper JP12 can be used to drive a LED for SCSI Busy. Pin 24
is +5V, and Pin 23 will drive a load up to 8mA.
|
Default setting |
The default jumper setting at shipment
is as follows. |
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| SCSI bus terminator |
The file has an internal Active SCSI bus
terminator, and can be controlled on/off with one jumper block
provided at the card edge. The user is responsible for properly
terminating the SCSI bus in the system. |
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