Seagate ST118202LW/LC manual Hinweis

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Cheetah 18 Installation Guide, Rev. A

Note. Signal ground on the power control board assembly (PCBA) and the head and disc assembly (HDA) are con- nected together in this drive and you cannot separate them. The equipment in which you have mounted the drive is connected directly to the HDA and PCBA without electrically isolating shock mounts. Maximizing the con- ductive 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 (PCBA) 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 PCB angeschlossen. 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/PCBA- 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 Cheetah Disc Drive ST118202LW/LC Installation Guide Contents Preface Electrostatic discharge protectionImportant safety information and precautions Page Wichtige Sicherheitshinweise Page Cheetah 18 Installation Guide, Rev. a Regulatory agency compliance Electromagnetic susceptibilityElectromagnetic compliance for the European Union Seagate Technology support services Online services SeaNET Seagate CompuServe forumFAX services SeaFAXDirect-support services Technical supportCustomer service centers Manufacturer’s representatives General description Cheetah 18 family drive ST118202LW shown Characteristics ST118202LW/LC DC power requirements ±5%1 +5 +12 Drive models General informationSingle-ended and low voltage differential modes Scsi ID jumpersPage Drive termination Terminator power Circuits and data path widthsCable characteristics for SE and LVD circuits Pin I/O connection to drive LW model Multiple-drive connection to host adapter Drive model LC with single 80-pin I/O and power connector Providing adequate cooling Kühlung des Systems Suggested air flow Mounting the drive and connecting cables Installation des Laufwerkes und Anschluß der KabelCheetah 18 Installation Guide, Rev. a DC power connector Abbildung 8. Gleichstromanschluß Hinweis Page Mounting configuration dimensions LW model Mounting configuration dimensions LC model Formatting the drive Quick reference desktop system notesSetting the Scsi ID jumpers LW drivesTerminating the drive Setting terminator power jumpers Other applicable jumper options Several other jumper options are available as illustratedAdditional jumper options Drive Active indicator Drive Active LED indicator connections are shown belowLC drives Terminating the drive Other option jumpers are available as illustrated below Drive Active indicator