Cheetah 18 Installation Guide, Rev. A

47

LC drives

Other applicable jumper options

Other option jumpers are available as illustrated below.

J2

Pin 1

Pin 2

R R R

S D M W P E E E

E S E P D S S S

Reserved

Single-Ended Mode option

Use single-ended or low voltage differential mode.

Force the drive to operate only in single-ended mode.

Delay Motor Start option

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

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.

J2 Jumper Plug

(enlarged to show detail)

J2

J6

Drive

Front

Figure 17. Additional jumper options

Page 49
Image 49
Seagate ST118202LW/LC manual Other option jumpers are available as illustrated below