Seagate ST423451N/W/WD manual General description

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12	Elite 23 Installation Guide, Rev. A

General description

Elite 23 SCSI disc drives are high-speed, random-access digital- data storage devices.

The drive is a component for installation in an enclosure designed for the drive. This is often a rack within the system or an external enclosure designed to house one or more disc drives or other peripheral units. In either case, the disc drive must receive adequate cooling (refer to “Providing adequate cooling”) and it must be sufficiently grounded and shielded from emis- sions. The Elite 23 Product Manual (part number 83329140) contains guidelines for a properly designed enclosure.

Figure 1. Elite 23 disc drive (N model shown)

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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 Location Telephone number Seagate Technology FAX servicesSeaFAX 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