Seagate ST32550N/ND, ST31250W/WD/WC/DC, ST31250N/ND Preface, Electrostatic discharge protection

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Barracuda 2LP Installation Guide, Rev. E

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Preface

This manual contains information for users of the Seagate®ST31250 and ST32550 Barracuda™ 2LP SCSI disc drives. It provides support services, performance specifications, and initial setup information. Additional information is available in the Barracuda 2LP Product Manual (part number 83328930). Contact your Seagate sales representative if you need to order this publica- tion.

Electrostatic discharge protection

Caution. Removal of circuit boards by personnel not performing depot repair will damage compo- nents and may void the warranty.

All drive electronic assemblies are sensitive to static electricity, due to the electrostatically sensitive devices used within the drive circuitry. Although some devices such as metal-oxide semiconductors are extremely sensitive, all semiconductors, as well as some resistors and capacitors, may be damaged or degraded by expo- sure to static electricity.

Electrostatic damage to electronic devices may be caused by thedirect discharge of a charged conductor or by exposure to the static fields surrounding charged objects. To avoid damaging drive electronic assemblies, observe the following precautions when installing or servicing the drive:

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Contents Barracuda 2LP Contents Electrostatic discharge protection PrefaceImportant safety information and precautions Page Barracuda 2LP Installation Guide, Rev. E Wichtige Sicherheitshinweise Barracuda 2LP Installation Guide, Rev. E Page Barracuda 2LP Installation Guide, Rev. E Page CompuServe Forum SeaFAX USA 408 438-2620 EnglandSeaFONE 408 SeaTDD 408SeaBOARD Location Modem number General description Characteristics ST31250 ST32550 Barracuda 2LP Installation Guide, Rev. E Amps Barracuda 2LP Installation Guide, Rev. E Barracuda 2LP Installation Guide, Rev. E General information Drive modelsScsi ID jumpers Scsi bus termination Drive terminationSynchronizing spindles Terminator powerProviding adequate cooling Kühlung des Systems Suggested air flow Abbildung 3. Empfohlener Luftstromverlauf Mounting the drive and connecting cables Installation des Laufwerkes und Anschluß der Kabel Barracuda 2LP Installation Guide, Rev. E DC power connector Abbildung 4. Gleichstromanschluß Hinweis Formatting the drive Enabling write cache Setting the Scsi ID Setting the Scsi ID jumpersTerminating the drive Terminating the driveSetting terminator power jumpers Spindle sync connectors Several other jumper options are available as illustrated Other applicable jumper optionsWD drives Terminating the drive ST32550W shown Term. power to Scsi bus default Scsi I/O Other option jumpers are available as illustrated below Scsi ID = WC/DC drives Option jumpers are available as illustrated below Applicable jumper optionsPin J4 Pin 1 front view of J4 Page Page