Specifications

7.2.1 Jumper signal description on J6
7.2.1.1 Position #1-2
! Enable Auto Spin Up (68-pin model)
If a jumper is installed, the drive will spin up automatically after power on reset. If a jumper is not
installed, the drive will not spin up unless a START UNIT command is received.
! Disable Auto Spin Up (80-pin model)
If a jumper is not installed, the drive will spin up automatically after power on reset. If a jumper is
installed, the drive will not spin up unless a START UNIT command is received.
7.2.1.2 Position #3-4 and #5-6: Auto Start Delay & Delay Start 6/12
These pins control when and how the drive spins up with the combination of Position #1-2 on J6. When
both Auto Spin up and Auto Start Delay are enabled, the drive start will be delayed by a period of time
multiplied by its own SCSI address. If Auto Spin up is disabled, these jumpers will be ignored. Placing a
jumper on delay start 6/12 results in a start up delay of 12 seconds times the SCSI ID.
Note: In the table below, 'on' means a jumper is installed and 'off' means that a jumper is not installed.
-NOononon80 pin
12YESonoffon80 pin
-NOononoff80 pin
0YESonoffoff80 pin
- NOoffonon80 pin
6YESoffoffon80 pin
-NOoffonoff80 pin
0YESoffoffoff80 pin
12YESononon68 pin
-NOonoffon68 pin
0YESononoff68 pin
-NOonoffoff68 pin
6YESoffonon68 pin
-NOoffoffon68 pin
0YESoffonoff68 pin
-NOoffoffoff68 pin
Delay
Multiplier
Auto Start
Delay
Start 6/12
Auto Spin
Up
Auto Start DelayModel
Figure 23. Auto Start Delay & Delay Start 6/12 drive behavior
Ultrastar 146Z10 hard disk drive specifications
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