Seagate ST19101N/W/WC/WD/DC manual Drive Front

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46

Cheetah 9 Installation Guide, Rev. B

W/WD drives

Terminator power

There are three possible terminator power (TP) configurations for “W” model drives (see Figure 14). You will not normally need to change this option and can leave the drive configured as it was shipped from the factory.

There are two possible terminator power (TP) configurations for “WD” model drives (see Figure 14).

Pin 1

 

J2

 

 

Pin 2

 

 

 

 

 

 

R T T

 

 

T D MW P E P P

“W” Models

 

E S E P D S 2 1

Term. Power from Drive (default)

Term. Power to SCSI Bus

Term. Power from SCSI Bus (position A)

Term. Power to SCSI Bus and Drive

“WD” Models

Term. Power to SCSI Bus (default)

Host adapter or other device provides term. power to external terminator.

 

 

Pin 1

 

J6

J2

 

SCSI I/O J1

 

 

 

 

Connector

J2 Jumper

Drive

 

Front

 

(enlarged to

 

show detail)

 

DC Power

 

 

 

 

Connector

Figure 14. Setting terminator power jumpers

Image 48
Contents ST19101N/W/WC/WD/DC Contents Preface Electrostatic discharge protection Important safety information and precautions Cheetah 9 Installation Guide, Rev. B Wichtige Sicherheitshinweise Cheetah 9 Installation Guide, Rev. B Page Regulatory agency compliance Electromagnetic susceptibilityElectromagnetic compliance Electromagnetic compliance for the European Union Australian C-TickOnline services Seagate.comSeagate CompuServe forum FAX services SeaFAXDirect-support services Seagate technical supportCustomer service centers Manufacturer’s representativesGeneral description Drive characteristics Additional drive characteristics DC power requirements Amps ST19101 WC models WD, DC models +12V +5V Voltage regulation ± 5%Dimensions of the drive Drive models General informationScsi ID jumpers Drive termination Terminator power Circuits and data path widthsCable characteristics for single-ended circuits Pin I/O connection to drive Multiple drive connection to host adapter Multiple-drive connection to host adapter Scsi I/O Providing adequate cooling Kühlung des Systems Suggested air flow Abbildung 4. Empfohlener LuftstromverlaufMounting the drive and connecting cables Installation des Laufwerkes und Anschluß der KabelPage Pin Power Pin GleichstromHinweis Cheetah 9 Installation Guide, Rev. B Mounting configuration dimensions Formatting the drive Quick reference desktop system notesSetting the Scsi ID jumpers Setting the Scsi ID on model N drivesTerminating the drive Terminating the driveSetting terminator power jumpers Other applicable jumper options Additional jumper optionsWD drives Model W and WD drive alternate ID select and LED connection Terminating the drive W model shown Drive Front Other option jumpers are available as illustrated below WC/DC drives Applicable jumper options Jumper optionsDrive Active indicator Drive Active LED indicator connectionsPage Page