Barracuda 9 Installation Guide, Rev. B

35

N drives

Other applicable jumper options

Several other jumper options are available as illustrated.

Drive with

 

 

 

 

 

 

 

 

 

HDA up, PCB

 

 

 

 

 

 

 

 

 

down, viewed

 

 

 

 

Pin 1

from front

HDA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J6

 

 

 

 

 

 

 

 

 

 

 

 

L

R

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reserved E

E

E A

2

A

1

A

0

 

 

 

D

S

S

 

 

 

J2

Reserved

Delay Motor Start option (valid only if the Enable Motor Start jumper is not connected)

Pin 1

Reserved

 

 

11

 

 

Remote

 

 

LED

 

CATH

12

 

Shipped with cover installed.

 

Do not remove.

 

 

Do not install jumpers

 

on these four positions.

 

Drive Front

J6

J6

Jumper Type

 

 

 

(enlarged to

 

 

show detail)

 

 

Pin 1

 

 

End

 

J2

 

 

 

Pin 1

DC Power

 

 

Connector

 

 

 

J1

 

SCSI I/O

J2 Jumper Type

Connector

 

(enlarged to

show detail)

Disable the Delay Motor Start option (default).

Motor start delay equal to the SCSI ID multiplied by 12 seconds. For example, if the SCSI ID = 2, the drive starts in 24 seconds.

Motor Start option

Disable motor start (default). The drive starts according to the Delay Motor Start option.

Enable motor start. The drive waits for the Start Unit command from the host before starting the spindle motor.

Write Protect option

Write protect = Off (enables writing – default).

Write protect = On (disables writing).

Parity Check option

Enable parity check of SCSI bus (default).

Disable parity check.

Figure 8. Additional jumper options

Page 37
Image 37
Seagate ST19171N, ST19171DC Other applicable jumper options, Several other jumper options are available as illustrated