Seagate ST15150N/ND/DC, ST15150W/WD/WC manual WD drives

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Barracuda 4 Installation Guide, Rev. E

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Terminating the drive

To terminate the ST15150W drive, enable the perma- nently mounted IC active terminators by installing an Enable Drive Terminator jumper on J4 pins 11 and 12 as shown in Figure 16. If you install one of these models and it is not on the end of the SCSI bus, remove the jumper to disable the permanently mounted IC termina- tors and thereby remove internal termination from the drive.

The ST15150WD drive does not have internal termina- tors or any way of adding internal termination. You must provide external active termination (ANSI SCSI-2 Alter- native 2) to the drive when termination is required.

W/WD drives

Pin 1

J4J01

J4 Pin 1

Enable drive terminator.

Disable drive terminator.

Figure 16. Terminating the drive.

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Contents Barracuda 4 Family ST15150N/ND/DC ST15150W/WD/WC Contents Electrostatic discharge protection PrefaceImportant safety information and precautions Page Barracuda 4 Installation Guide, Rev. E Wichtige Sicherheitshinweise Barracuda 4 Installation Guide, Rev. E Page Barracuda 4 Installation Guide, Rev. E Page CompuServe Forum SeaFAX USA 408 438-2620 EnglandSeaTDD 408 SeaFONE 408SeaBOARD Location Number TelephoneGeneral description Barracuda 4 disc drive W/WD WD/WC/DC ND/WD/DC Barracuda 4 Installation Guide, Rev. E From previous General information Drive modelsScsi ID jumpers Scsi bus termination Drive terminationSynchronizing spindles optional Terminator powerOther applicable jumper options Providing adequate cooling Kühlung des Systems Suggested air flow Abbildung 5. Empfohlener Luftstromverlauf Mounting the drive and connecting cables Installation des Laufwerkes und Anschluß der Kabel Dimensions ST15150N/ND Abbildung 6. Laufwerkabmessungen Dimensions ST15150W/WD Abbildung 7. Laufwerkabmessungen Dimensions ST15150WC/DC Abbildung 8. Laufwerkabmessungen Page DC power connector Abbildung 9. Gleichstromanschluß Hinweis Formatting the drive Scsi Setting the Scsi ID jumpersTerminating the drive Terminating the driveDrivesN/ND Scsi Synchronizing spindlesSeveral other jumper options are available as illustrated DrivesW/WD WD drives Power Connector ST15150W/WD Pin DC Power Write Protect option WP Write Protect = On disables writing MTR DrivesWC/DC Connecting remote LEDs Jumper options Barracuda 4 Installation Guide, Rev. E Barracuda 4 Installation Guide, Rev. E