Seagate ST423451N/W/WD manual Hinweis

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Elite 23 Installation Guide, Rev. A

Note. Signal ground on the printed circuit board assembly (PCB) and the head and disc assembly (HDA) are con- nected together in this drive and you cannot separate them. Ensure the equipment in which you have mounted the drive is connected directly to the HDA. Maximizing the conductive contact area between HDA ground and system ground may reduce radiated emissions.

If you do not want the system chassis to be connected to the HDA/PCB ground, you must provide a nonconductive (electrically isolating) method of mounting the drive in the host system. This may increase radiated emissions and is the system designer’s responsibility.

Hinweis:

Die Signalerde auf der Stromregelungskarte (PCB) und der Kopf- und Festplatteneinheit (HDA) sind in diesem Laufwerk miteinander verbunden und können nicht getrennt werden. Das Gerät, in das Sie das Laufwerk eingebaut haben, ist ohne elektrisch isolierende Stoßdämpfer direkt an die HDA und PCBangeschlossen. Die elektromagnetische Strahlung kann reduziert wer- den, indem Sie eine möglichst große leitende Kontak- fläche zwischen der HDA-Erdung und der Systemerdung vorsehen.

Wenn Sie das Systemgehäuse nicht an die HDA/PCB- Erdung anschließen wollen, müssen Sie das Laufwerk auf nichtleitende Weise (galvanisch isoliert) im Host-Sys- tem einbauen. Die daraus u.U. resultierende verstärkte

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Contents Elite Disc Drive ST423451N/W/WD Contents Preface Electrostatic discharge protectionImportant safety information and precautions Page Wichtige Sicherheitshinweise Page European Union Compliance Page SeaNET Seagate Technology Online servicesSeaFONE at 1-800-SEAGATE Seagate Technology Forum on CompuServe SeaBOARDBBS Location Modem number Seagate Technology FAX services SeaFAXLocation Telephone number Seagate technical support FAXSeagate technical support line SeaTDDGeneral description Drive characteristics Elite 23 Installation Guide, Rev. a Dimensions of the drive Drive models General informationScsi ID jumpers Drive termination Terminator power Circuits and data path widthsCable characteristics for single-ended circuits Fifty-pin I/O connection to drive Multiple drive connection to host adapter Multiple-drive connection to host adapter Providing adequate cooling Kühlung des Systems Suggested air flow Abbildung 4. Empfohlener Luftstromverlauf Mounting the drive and connecting cables Installation des Laufwerkes und Anschluß der KabelElite 23 Installation Guide, Rev. a Pin Power Pin GleichstromHinweis Page Mounting configuration dimensions Formatting the drive Quick reference desktop system notesSetting the Scsi ID jumpers Setting the Scsi ID on N modelsTerminating the drive Terminating the driveSetting terminator power jumpers on N models Other applicable jumper options Additional jumper optionsWD drives Terminating the drive ST423451W shown Setting terminator power jumpers on W models Other option jumpers are available as illustrated below Active, Ready, and Fault indicators LED indicator connections for all drive modelsPage Page