Seagate ST31230WC, ST31230DC, ST31230WD, ST32430WD, ST32430DC, ST32430WC manual Tp Tp, TP Position a

Models: ST31230DC ST31230W ST32430W ST31230WD ST32430DC ST31230WC ST32430WD ST32430WC

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30 Hawk 2LP (Wide) Installation Guide, Rev. A continued from previous page

SS

 

Off On

Reserved. Default is no jumper installed.

TP TP

(Not applicable to "WC/DC" model drives)

Off Off

No terminator power is connected to drive

 

terminators or SCSI bus I/O pin 26.

On Off

Drive supplies its own terminator power only.

 

Jumper on this position is factory default.

Off On

Drive supplies power to I/O pin 26 of SCSI

 

bus; none to internal terminators. When

 

drives have differential I/O circuits a jumper

 

on the right TP position may be needed to

 

power external terminator (see system docu-

 

mentation). The "WD" drive has differential

 

I/O circuits which have no terminator circuits

 

on the drive. The "WC/DC" Model drives

 

have no provisions for terminators on the

 

drive and no provisions for terminator power

 

on the 80 pin I/O connector.

On On

Drive supplies terminator power to itself (in-

 

ternal connection) and to I/O pin 26 of SCSI

 

bus. This is a legal jumper setting.

Off

See above explanations for TP jumpers.

TP Position A

On This horizontally positioned jumper across the two TP positions nearest PCB edge, connects terminator power from SCSI bus

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Seagate ST31230WC, ST31230DC, ST31230WD, ST32430WD, ST32430DC, ST32430WC manual Tp Tp, TP Position a