Barracuda 2LP Installation Guide, Rev. E | 37 |
Other applicable jumper options
N/ND drives
Several other jumper options are available as illustrated.
Pin 1
J2
J4
J2
Pin 2
Pin 1
Reserved
Parity Check option
Enable parity check of
SCSI bus (default).
Disable parity check.
Write Protect option
Write protect = Off (enables writing – default)
Write protect = On (disables writing)
Pin 1 (front view of J4)
J4
Pin 2 
Pin 1 
Reserved |
|
|
|
|
|
Remote LED |
| GND (cathode) |
connector* |
| POS (anode) |
*Note to subsystem designers: In Europe, a red LED indicates an error or warning condition. For this reason, you may want to use a color other than red with this connection.
Motor Start option
Enable motor start. The drive waits for the Start Unit command from the host before starting the spindle motor.
Disable motor start (default). The drive 
starts according to the 
Delay Motor Start option.
Delay Motor Start option (valid only if the Motor Start jumper is not connected)
Disable the Delay Motor
Start option (default).
Motor start delay equal to the SCSI ID multiplied
by 10 seconds. For example, if the SCSI ID = 2, the drive starts
in 20 seconds.